GS1561

GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Key Features • • • • • • • • • • SMPTE 292M and SMPTE 259M-C compliant descrambling and NRZI → NRZ decoding (with bypass) DVB-ASI 8b/10b decoding auto-configuration for HD-SDI and SD-SDI serial loop-through cable driver output selectable as reclocked or non-reclocked (GS1560A only) dual serial digital input buffers with 2 x 1 mux integrated serial digital signal termination integrated reclocker automatic or manual rate selection / indication (HD/SD) descrambler bypass option user selectable additional processing features including: • • • CRC, TRS, ANC data checksum, line number and EDH CRC error detection and correction programmable ANC data detection illegal code remapping Description The GS1560A/GS1561 is a reclocking deserializer. When used in conjunction with the GS1524 Automatic Cable Equalizer and the GO1555/GO1525* Voltage Controlled Oscillator, a receive solution can be realized for HD-SD, SD-SDI and DVB-ASI applications. In addition to reclocking and deserializing the input data stream, the GS1560A/GS1561 performs NRZI-to-NRZ decoding, descrambling as per SMPTE 259M-C/292M, and word alignment when operating in SMPTE mode. When operating in DVB-ASI mode, the device will word align the data to K28.5 sync characters and 8b/10b decode the received stream. Two serial digital input buffers are provided with a 2x1 multiplexer to allow the device to select from one of two serial digital input signals. The integrated reclocker features a very wide Input Jitter Tolerance of ±0.3 UI (total 0.6 UI), a rapid asynchronous lock time, and full compliance with DVB-ASI data streams. The GS1560A includes an integrated cable driver is for serial input loop-through applications. It can be selected to output either buffered or reclocked data. The cable driver also features an output mute on loss of signal, high impedance mode, adjustable signal swing, and automatic dual slew-rate selection depending on HD/SD operational requirements. The GS1560A/GS1561 also includes a range of data processing functions such as error detection and correction, automatic standards detection, and EDH support. The device can also detect and extract SMPTE 352M payload identifier packets and independently identify the received video standard. This information is read from internal registers via the host interface port. Line-based CRC errors, line number errors, TRS errors, EDH CRC errors and ancillary data checksum errors can all be detected. Finally, the device can correct detected errors and insert new TRS ID words, line-based CRC words, ancillary data checksum words, EDH CRC words, and line numbers. Illegal code re-mapping is also available. All processing functions may be individually enabled or disabled via host interface control. The GS1560A/GS1561 is Pb-free and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous subcomponents are RoHS compliant. *For new designs use GO1555 1 of 79 • • • • • • • • • • internal flywheel for noise immune H, V, F extraction FIFO load Pulse 20-bit / 10-bit CMOS parallel output data bus 148.5MHz / 74.25MHz / 27MHz / 13.5MHz parallel digital output automatic standards detection and indication Pb-free and RoHS Compliant 1.8V core power supply and 3.3V charge pump power supply 3.3V digital I/O supply JTAG test interface small footprint compatible with GS9060, GS1532, and GS9062 Applications • • • SMPTE 292M Serial Digital Interfaces SMPTE 259M-C Serial Digital Interfaces DVB-ASI Serial Digital Interfaces GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 www.gennum.com Functional Block Diagrams IOPROC_EN/DIS SMPTE_BYPASS MASTER/SLAVE CP_CAP VCO VCO LB_CONT LF VCO_VCC VCO_GND FW_EN/DIS 20bit/10bit DVB_ASI LOCKED RC_BYP SD/HD IP_SEL PCLK H V F CD1 CD2 carrier_detect rclk_ctrl pll_lock LOCK detect TERM 1 DDI_1 DDI_1 Reclocker TERM 2 DDI_2 DDI_2 S->P smpte_sync_det asi_sync_det SMPTE Descramble, Word alignment and flywheel CRC check Line number check TRS check CSUM check ANC data detection DATA_ERROR CRC correct Line number correct TRS correct CSUM correct EDH check & correct Illegal code remap DOUT[19:0] I/O Buffer & mux FIFO_LD DVB-ASI word alignment and 8b/10b decode (o/p mute) pll_lock rclk_bypass CANC YANC SDO_EN/DIS SDO SDO Reset RSET HOST Interface / JTAG test RESET_TRST CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO JTAG/HOST GS1560A Functional Block Diagram IOPROC_EN/DIS SMPTE_BYPASS MASTER/SLAVE CP_CAP VCO VCO LB_CONT LF VCO_VCC VCO_GND FW_EN/DIS 20bit/10bit DVB_ASI LOCKED SD/HD IP_SEL PCLK H V F CD1 CD2 carrier_detect rclk_ctrl pll_lock LOCK detect TERM 1 DDI_1 DDI_1 Reclocker TERM 2 DDI_2 DDI_2 S->P Reset smpte_sync_det asi_sync_det RESET_TRST SMPTE Descramble, Word alignment and flywheel CRC check Line number check TRS check CSUM check ANC data detection DATA_ERROR CRC correct Line number correct TRS correct CSUM correct EDH check & correct Illegal code remap DOUT[19:0] I/O Buffer & mux FIFO_LD DVB-ASI word alignment and 8b/10b decode CANC YANC HOST Interface / JTAG test CS_TMS SCLK_TCK SDIN_TDI SDOUT_TDO JTAG/HOST GS1561 Functional Block Diagram GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 2 of 79 Revision History Version 12 11 10 9 ECR 152053 150195 143666 140423 PCN – 50711 42774 39452 Date June 2009 July 2008 January 2007 May 2006 Changes and / or Modifications Removed ‘Proprietary & Confidential’ from the footer. DVB_ASI operation specification change in Master mode. Recommended the new GO1555 VCO for new designs. Corrected minor typing errors in Functional Block Diagram. Modified video format numbers for system 1125 on Table 4-4: Switch Line Position for Digital Systems. Conversion to Data Sheet. Added note on max device power and current to Table 2-1: DC Electrical Characteristics. Corrected Solder Reflow Profile labels. Restored missing overlines to pin names. Corrected missing TERM pin in Serial Digital Input connection diagram. Rephrased RoHS compliance statement. Added Solder Reflow Profile description. Clarified setting of VD_STD[4:0], INT_PROG and STD_LOCK bits following a reset and/or removal of input. Minor correction to Typical Application Circuits for both parts. Added DVB-ASI Packet Counter information. Added Packaging Data section. Changed ‘Green’ references to RoHS Compliant. 8 137405 – September 2005 7 136978 – June 2005 6 134906 – April 2005 Contents Key Features ........................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 Functional Block Diagrams ............................................................................................................................2 1. Pin Out...............................................................................................................................................................6 1.1 Pin Assignment GS1560A ...............................................................................................................6 1.2 Pin Assignment GS1561 ..................................................................................................................7 1.3 Pin Descriptions .................................................................................................................................8 2. Electrical Characteristics ......................................................................................................................... 19 2.1 Absolute Maximum Ratings........................................................................................................ 19 2.2 DC Electrical Characteristics ...................................................................................................... 19 2.3 AC Electrical Characteristics ...................................................................................................... 21 3. Input/Output Circuits ............................................................................................................................... 24 3.1 Host Interface Map......................................................................................................................... 26 3.1.1 Host Interface Map (R/W Configurable Registers) ................................................. 27 3.1.2 Host Interface Map (Read Only Registers) ................................................................ 28 4. Detailed Description.................................................................................................................................. 29 GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 3 of 79 4.1 Functional Overview..................................................................................................................... 29 4.2 Serial Digital Input ......................................................................................................................... 30 4.2.1 Input Signal Selection ...................................................................................................... 30 4.2.2 Carrier Detect Input.......................................................................................................... 30 4.2.3 Single Input Configuration............................................................................................. 30 4.3 Serial Digital Reclocker ................................................................................................................ 31 4.3.1 External VCO ...................................................................................................................... 31 4.3.2 Loop Bandwidth................................................................................................................. 31 4.4 Serial Digital Loop-Through Output (GS1560A only)......................................................... 31 4.4.1 Output Swing ...................................................................................................................... 32 4.4.2 Reclocker Bypass Control ............................................................................................... 33 4.4.3 Serial Digital Output Mute.............................................................................................. 33 4.5 Serial-To-Parallel Conversion .................................................................................................... 34 4.6 Modes Of Operation ...................................................................................................................... 34 4.6.1 Lock Detect .......................................................................................................................... 34 4.6.2 Master Mode........................................................................................................................ 35 4.6.3 Slave Mode........................................................................................................................... 36 4.7 SMPTE Functionality ..................................................................................................................... 36 4.7.1 SMPTE Descrambling and Word Alignment ............................................................ 37 4.7.2 Internal Flywheel .............................................................................................................. 37 4.7.3 Switch Line Lock Handling............................................................................................. 38 4.7.4 HVF Timing Signal Generation ..................................................................................... 42 4.8 DVB-ASI Functionality ................................................................................................................. 44 4.8.1 Transport Packet Format................................................................................................. 44 4.8.2 DVB-ASI 8b/10b Decoding and Word Alignment.................................................. 44 4.8.3 Status Signal Outputs ....................................................................................................... 45 4.9 Data Through Mode ....................................................................................................................... 45 4.10 Additional Processing Functions ............................................................................................ 45 4.10.1 FIFO Load Pulse ............................................................................................................... 46 4.10.2 Ancillary Data Detection and Indication ................................................................ 47 4.10.3 SMPTE 352M Payload Identifier ................................................................................ 51 4.10.4 Automatic Video Standard and Data Format Detection.................................... 51 4.10.5 Error Detection and Indication................................................................................... 55 4.10.6 Error Correction and Insertion ................................................................................... 60 4.10.7 EDH Flag Detection ........................................................................................................ 62 4.11 Parallel Data Outputs.................................................................................................................. 64 4.11.1 Parallel Data Bus Buffers .............................................................................................. 64 4.11.2 Parallel Output in SMPTE Mode................................................................................. 65 4.11.3 Parallel Output in DVB-ASI Mode............................................................................. 65 4.11.4 Parallel Output in Data-Through Mode................................................................... 65 4.11.5 Parallel Output Clock (PCLK) ...................................................................................... 66 4.12 GSPI Host Interface...................................................................................................................... 67 4.12.1 Command Word Description ...................................................................................... 67 4.12.2 Data Read and Write Timing ....................................................................................... 68 4.12.3 Configuration and Status Registers........................................................................... 68 GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 4 of 79 4.13 JTAG.................................................................................................................................................. 69 4.14 Device Power Up.......................................................................................................................... 70 4.15 Device Reset................................................................................................................................... 70 5. Application Reference Design ............................................................................................................... 71 5.1 GS1560A Typical Application Circuit (Part A)...................................................................... 71 5.2 GS1560A Typical Application Circuit (Part B) ...................................................................... 72 5.3 GS1561 Typical Application Circuit (Part A) ......................................................................... 73 5.4 GS1561 Typical Application Circuit (Part B).......................................................................... 74 6. References & Relevant Standards ......................................................................................................... 75 7. Package & Ordering Information .......................................................................................................... 76 7.1 Package Dimensions...................................................................................................................... 76 7.2 Packaging Data................................................................................................................................ 77 7.3 Solder Reflow Profiles................................................................................................................... 77 7.4 Ordering Information.................................................................................................................... 78 GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 5 of 79 1. Pin Out 1.1 Pin Assignment GS1560A DOUT17 DOUT16 DOUT15 DOUT14 DOUT13 DOUT12 DOUT11 DOUT10 IO_GND IO_GND IO_VDD IO_VDD DOUT9 DOUT8 DOUT7 DOUT5 DOUT4 DOUT3 DOUT2 DOUT6 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 IO_VDD DOUT18 DOUT19 CORE_VDD YANC CANC FW_EN/DIS CORE_GND PCLK RC_BYP MASTER/SLAVE LOCKED VCO VCO VCO_GND VCO_VCC LF CP_CAP LB_CONT CP_GND 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 40 39 38 37 36 35 34 33 IO_GND DOUT1 DOUT0 CORE_VDD H V F CORE_GND FIFO_LD DATA_ERROR SCLK_TCK SDIN_TDI SDOUT_TDO CS_TMS JTAG/HOST RESET_TRST SDO SDO CD_GND SDO_EN/DIS GS1560A 32 31 30 29 28 27 26 25 24 23 22 21 DDI1 DVB_ASI CD1 PDBUFF_GND BUFF_VDD PD_VDD TERM1 SD/HD DDI1 SMPTE_BYPASS RSET 20bit/10bit IOPROC_EN/DIS [ GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 CD_VDD CP_VDD IP_SEL TERM2 DDI2 DDI2 CD2 6 of 79 1.2 Pin Assignment GS1561 IO_GND IO_GND IO_VDD IO_VDD 40 39 38 37 36 35 34 33 DOUT1 DOUT1 DOUT1 DOUT1 DOUT1 DOUT1 DOUT1 DOUT1 DOUT9 DOUT8 DOUT7 DOUT5 DOUT4 DOUT3 DOUT2 DOUT6 60 59 58 57 56 55 54 53 52 51 50 49 48 47 46 45 44 43 42 41 IO_VDD DOUT18 DOUT19 CORE_VDD YANC CANC FW_EN/DIS CORE_GND PCLK RSV MASTER/SLAVE LOCKED VCO VCO VCO_GND VCO_VCC LF CP_CAP LB_CONT CP_GND 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 IO_GND DOUT1 DOUT0 CORE_VDD H V F CORE_GND FIFO_LD DATA_ERRO SCLK_TCK SDIN_TDI SDOUT_TDO CS_TMS JTAG/HOST RESET_TRST NC NC NC NC GS1561 32 31 30 29 28 27 26 25 24 23 22 21 DDI1 DVB_ASI CD1 PDBUFF_GND BUFF_VDD PD_VDD TERM1 SD/HD DDI1 SMPTE_BYPASS CP_VDD IP_SEL 20bit/10bit DDI2 NC IOPROC_EN/DIS GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 TERM2 DDI2 CD2 NC 7 of 79 1.3 Pin Descriptions Table 1-1: Pin Descriptions Pin Number 1 Name Timing Type Description CP_VDD – Power Power supply connection for the charge pump. Connect to +3.3V DC analog. Ground connection for the phase detector and serial digital input buffers. Connect to analog GND. Power supply connection for the phase detector. Connect to +1.8V DC analog. Power supply connection for the serial digital input buffers. Connect to +1.8V DC analog. STATUS SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the presence of a serial digital input signal. Normally generated by a Gennum automatic cable equalizer. When LOW, the serial digital input signal received at the DDI1 and DDI1 pins is considered valid. When HIGH, the associated serial digital input signal is considered to be invalid. In this case, the LOCKED signal is set LOW and all parallel outputs are muted. 2 PDBUFF_GND – Power 3 PD_VDD – Power 4 BUFF_VDD – Power 5 CD1 Non Synchronous Input 6, 8 7 9 DDI1, DDI1 TERM1 DVB_ASI Analog Analog Non Synchronous Input Input Input / Output Differential input pair for serial digital input 1. Termination for serial digital input 1. AC couple to EQ_GND. CONTROL SIGNAL INPUT / STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. This pin will be an input set by the application layer in slave mode. This pin and its function are not supported in Master mode. Slave Mode (MASTER/SLAVE = LOW) When set HIGH in conjunction with SD/HD = HIGH and SMPTE_BYPASS = LOW, the device will be configured to operate in DVB-ASI mode. When set LOW, the device will not support the decoding or word alignment of received DVB-ASI data. 10 IP_SEL Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to select DDI1 / DDI1 or DDI2 / DDI2 as the serial digital input signal, and CD1 or CD2 as the carrier detect input signal. When set HIGH, DDI1 / DDI1 is selected as the serial digital input and CD1 is selected as the carrier detect input signal. When set LOW, DDI2 / DDI2 serial digital input and CD2 carrier detect input signal is selected. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 8 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 11 Name Timing Type Description SD/HD Non Synchronous Input / Output CONTROL SIGNAL INPUT / STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. This pin will be an input set by the application layer in slave mode, and will be an output set by the device in master mode. Master Mode (MASTER/SLAVE = HIGH) The SD/HD signal will be LOW whenever the received serial digital signal is 1.485Gb/s or 1.485/1.001Gb/s. The SD/HD signal will be HIGH whenever the received serial digital signal is 270Mb/s. Slave Mode (MASTER/SLAVE = LOW) When set LOW, the device will be configured for the reception of 1.485Gb/s or 1.485/1.001Gb/s signals only and will not lock to any other serial digital signal. When set HIGH, the device will be configured for the reception of 270Mb/s signals only and will not lock to any other serial digital signal. NOTE: When in slave mode, reset the device after the SD/HD input has been initially configured, and after each subsequent SD/HD data rate change. NOTE: This pin has an internal pull-up resistor of 100K. 12 20bit/10bit Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to select the output data bus width in SMPTE or Data-Through modes. This signal is ignored in DVB-ASI mode. When set HIGH, the parallel output will be 20-bit demultiplexed data. When set LOW, the parallel outputs will be 10-bit multiplexed data. 13 IOPROC_EN/DIS Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to enable or disable I/O processing features. When set HIGH, the following I/O processing features of the device are enabled: • EDH CRC Error Correction (SD-only) • ANC Data Checksum Correction • Line-based CRC Error Correction (HD-only) • Line Number Error Correction (HD-only) • TRS Error Correction • Illegal Code Remapping To enable a subset of these features, keep IOPROC_EN/DIS HIGH and disable the individual feature(s) in the IOPROC_DISABLE register accessible via the host interface. When set LOW, the I/O processing features of the device are disabled, regardless of whether the features are enabled in the IOPROC_DISABLE register. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 9 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 14 Name Timing Type Description CD2 Non Synchronous Input STATUS SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the presence of a serial digital input signal. Normally generated by a Gennum automatic cable equalizer. When LOW, the serial digital input signal received at the DDI2 and DDI2 pins is considered valid. When HIGH, the associated serial digital input signal is considered to be invalid. In this case, the LOCKED signal is set LOW and all parallel outputs are muted. 15, 17 16 18 DDI2, DDI2 TERM2 SMPTE_BYPASS Analog Analog Non Synchronous Input Input Input / Output Differential input pair for serial digital input 2. Termination for serial digital input 2. AC couple to PDBUFF_GND. CONTROL SIGNAL INPUT / STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. This pin will be an input set by the application layer in slave mode, and will be an output set by the device in master mode. Master Mode (MASTER/SLAVE = HIGH) The SMPTE_BYPASS signal will be HIGH only when the device has locked to a SMPTE compliant data stream. It will be LOW otherwise. Slave Mode (MASTER/SLAVE = LOW) When set HIGH in conjunction with DVB_ASI = LOW, the device will be configured to operate in SMPTE mode. All I/O processing features may be enabled in this mode. When set LOW, the device will not support the descrambling, decoding or word alignment of received SMPTE data. No I/O processing features will be available. 19 RSET Analog Input GS1560A Used to set the serial digital loop-through output signal amplitude. Connect to CD_VDD through 281Ω +/- 1% for 800mVp-p single-ended output swing. NC – – GS1561 No Connect. 20 CD_VDD – Power GS1560A Power supply connection for the serial digital cable driver. Connect to +1.8V DC analog. NC – – GS1561 No Connect. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 10 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 21 Name Timing Type Description SDO_EN/DIS Non Synchronous Input GS1560A CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to enable or disable the serial digital output loop-through stage. When set LOW, the serial digital output signals SDO and SDO are disabled and become high impedance. When set HIGH, the serial digital output signals SDO and SDO are enabled. NC – – GS1561 No Connect. 22 CD_GND – Power GS1560A Ground connection for the serial digital cable driver. Connect to analog GND. NC – – GS1561 No Connect. 23, 24 SDO, SDO Analog Output GS1560A Serial digital loop-through output signal operating at 1.485Gb/s, 1.485/1.001Gb/s, or 270Mb/s. The slew rate of these outputs is automatically controlled to meet SMPTE 292M and 259M specifications according to the setting of the SD/HD pin. NC – – GS1561 No Connect. 25 RESET_TRST Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to reset the internal operating conditions to default settings and to reset the JTAG test sequence. Host Mode (JTAG/HOST = LOW) When asserted LOW, all functional blocks will be set to default conditions and all input and output signals become high impedance, including the serial digital outputs SDO and SDO. Must be set HIGH for normal device operation. NOTE: When in slave mode, reset the device after the SD/HD input has been initially configured, and after each subsequent SD/HD data rate change. JTAG Test Mode (JTAG/HOST = HIGH) When asserted LOW, all functional blocks will be set to default and the JTAG test sequence will be held in reset. When set HIGH, normal operation of the JTAG test sequence resumes. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 11 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 26 Name Timing Type Description JTAG/HOST Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to select JTAG Test Mode or Host Interface Mode. When set HIGH, CS_TMS, SDOUT_TDO, SDI_TDI and SCLK_TCK are configured for JTAG boundary scan testing. When set LOW, CS_TMS, SDOUT_TDO, SDI_TDI and SCLK_TCK are configured as GSPI pins for normal host interface operation. 27 CS_TMS Synchronous with SCLK_TCK Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Chip Select / Test Mode Select Host Mode (JTAG/HOST = LOW) CS_TMS operates as the host interface chip select, CS, and is active LOW. JTAG Test Mode (JTAG/HOST = HIGH) CS_TMS operates as the JTAG test mode select, TMS, and is active HIGH. NOTE: If the host interface is not being used, tie this pin HIGH. 28 SDOUT_TDO Synchronous with SCLK_TCK Output CONTROL SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Serial Data Output / Test Data Output Host Mode (JTAG/HOST = LOW) SDOUT_TDO operates as the host interface serial output, SDOUT, used to read status and configuration information from the internal registers of the device. JTAG Test Mode (JTAG/HOST = HIGH) SDOUT_TDO operates as the JTAG test data output, TDO. 29 SDIN_TDI Synchronous with SCLK_TCK Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Serial Data In / Test Data Input Host Mode (JTAG/HOST = LOW) SDIN_TDI operates as the host interface serial input, SDIN, used to write address and configuration information to the internal registers of the device. JTAG Test Mode (JTAG/HOST = HIGH) SDIN_TDI operates as the JTAG test data input, TDI. NOTE: If the host interface is not being used, tie this pin HIGH. 30 SCLK_TCK Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Serial Data Clock / Test Clock. Host Mode (JTAG/HOST = LOW) SCLK_TCK operates as the host interface burst clock, SCLK. Command and data read/write words are clocked into the device synchronously with this clock. JTAG Test Mode (JTAG/HOST = HIGH) SCLK_TCK operates as the JTAG test clock, TCK. NOTE: If the host interface is not being used, tie this pin HIGH. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 12 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 31 Name Timing Type Description DATA_ERROR Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. The DATA_ERROR signal will be LOW when an error within the received data stream has been detected by the device. This pin is a logical 'OR'ing of all detectable errors listed in the internal ERROR_STATUS register. Once an error is detected, DATA_ERROR will remain LOW until the start of the next video frame / field, or until the ERROR_STATUS register is read via the host interface. The DATA_ERROR signal will be HIGH when the received data stream has been detected without error. NOTE: It is possible to program which error conditions are monitored by the device by setting appropriate bits of the ERROR_MASK register HIGH. All error conditions are detected by default. 32 FIFO_LD Synchronous with PCLK Output CONTROL SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Used as a control signal for external FIFO(s). Normally HIGH but will go LOW for one PCLK period at SAV. 33, 68 34 CORE_GND F – Synchronous with PCLK Power Output Ground connection for the digital core logic. Connect to digital GND. STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the ODD / EVEN field of the video signal. The F signal will be HIGH for the entire period of field 2 as indicated by the F bit in the received TRS signals. The F signal will be LOW for all lines in field 1 and for all lines in progressive scan systems. 35 V Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the portion of the video field / frame that is used for vertical blanking. The V signal will be HIGH for the entire vertical blanking period as indicated by the V bit in the received TRS signals. The V signal will be LOW for all lines outside of the vertical blanking interval. 36 H Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the portion of the video line containing active video data. H signal timing is configurable via the H_CONFIG bit of the IOPROC_DISABLE register accessible via the host interface. Active Line Blanking (H_CONFIG = 0h) The H signal will be HIGH for the entire horizontal blanking period, including the EAV and SAV TRS words, and LOW otherwise. This is the default setting. TRS Based Blanking (H_CONFIG = 1h) The H signal will be HIGH for the entire horizontal blanking period as indicated by the H bit in the received TRS ID words, and LOW otherwise. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 13 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 37, 64 Name Timing Type Description CORE_VDD – Power Power supply connection for the digital core logic. Connect to +1.8V DC digital. PARALLEL DATA BUS Signal levels are LVCMOS/LVTTL compatible. DOUT9 is the MSB and DOUT0 is the LSB. HD 20-bit mode SD/HD = LOW 20bit/10bit = HIGH Chroma data output in SMPTE mode SMPTE_BYPASS =HIGH DVB_ASI = LOW Data output in Data-Through mode SMPTE_BYPASS = LOW DVB_ASI = LOW HD 10-bit mode SD/HD = LOW 20bit/10bit = LOW SD 20-bit mode SD/HD = HIGH 20bit/10bit = HIGH Forced LOW in all modes. 38, 39, 42-48, 50 DOUT[0:9] Synchronous with PCLK Output Chroma data output in SMPTE mode SMPTE_BYPASS = HIGH DVB_ASI = LOW Data output in Data-Through mode SMPTE_BYPASS = LOW DVB_ASI = LOW Forced LOW in DVB-ASI mode SMPTE_BYPASS = LOW DVB_ASI = HIGH SD 10-bit mode SD/HD = HIGH 20bit/10bit = LOW 40, 49, 60 41, 53, 61 IO_GND IO_VDD – – Power Power Forced LOW in all modes. Ground connection for digital I/O buffers. Connect to digital GND. Power supply connection for digital I/O buffers. Connect to +3.3V DC digital. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 14 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 51, 52, 54-59, 62, 63 Name Timing Type Description DOUT[19:10] Synchronous with PCLK Output PARALLEL DATA BUS Signal levels are LVCMOS/LVTTL compatible. DOUT19 is the MSB and DOUT10 is the LSB. HD 20-bit mode SD/HD = LOW 20bit/10bit = HIGH Luma data output in SMPTE mode SMPTE_BYPASS = HIGH DVB_ASI = LOW Data output in Data-Through mode SMPTE_BYPASS = LOW DVB_ASI = LOW HD 10-bit mode SD/HD = LOW 20bit/10bit = LOW Multiplexed Luma and Chroma data output in SMPTE mode SMPTE_BYPASS = HIGH DVB_ASI = LOW Data output in Data-Through mode SMPTE_BYPASS = LOW DVB_ASI = LOW SD 20-bit mode SD/HD = HIGH 20bit/10bit = HIGH Luma data output in SMPTE mode SMPTE_BYPASS = HIGH DVB_ASI = LOW Data output in Data-Through mode SMPTE_BYPASS = LOW DVB_ASI = LOW DVB-ASI data in DVB-ASI mode SMPTE_BYPASS = LOW DVB_ASI = HIGH SD 10-bit mode SD/HD = HIGH 20bit/10bit = LOW Multiplexed Luma and Chroma data output in SMPTE mode SMPTE_BYPASS = HIGH DVB_ASI = LOW Data input in data through mode SMPTE_BYPASS = LOW DVB_ASI = LOW DVB-ASI data in DVB-ASI mode SMPTE_BYPASS = LOW DVB_ASI = HIGH 65 YANC Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the presence of ancillary data in the video stream. HD Mode (SD/HD = LOW) The YANC signal will be HIGH when the device has detected VANC or HANC data in the luma video stream and LOW otherwise. SD Mode (SD/HD = LOW) For 20-bit demultiplexed data (20bit/10bit = HIGH), the YANC signal will be HIGH when VANC or HANC data is detected in the luma video stream and LOW otherwise. For 10-bit multiplexed data (20bit/10bit = LOW), the YANC signal will be HIGH when VANC or HANC data is detected anywhere in the data stream and LOW otherwise. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 15 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 66 Name Timing Type Description CANC Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. Used to indicate the presence of ancillary data in the video stream. HD Mode (SD/HD = LOW) The CANC signal will be HIGH when the device has detected VANC or HANC data in the chroma video stream and LOW otherwise. SD Mode (SD/HD = LOW) For 20-bit demultiplexed data (20bit/10bit = HIGH), the CANC signal will be HIGH when VANC or HANC data is detected in the chroma video stream and LOW otherwise. For 10-bit multiplexed data (20bit/10bit = LOW), the CANC signal will be HIGH when VANC or HANC data is detected anywhere in the data stream and LOW otherwise. 67 FW_EN/DIS Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to enable or disable the noise immune flywheel of the device. When set HIGH, the internal flywheel is enabled. This flywheel is used in the extraction and generation of TRS timing signals, in automatic video standards detection, and in manual switch line lock handling. When set LOW, the internal flywheel is disabled and TRS correction and insertion is unavailable. 69 PCLK – Output PARALLEL DATA BUS CLOCK Signal levels are LVCMOS/LVTTL compatible. HD 20-bit mode HD 10-bit mode SD 20-bit mode SD 10-bit mode PCLK = 74.25MHz or 74.25/1.001MHz PCLK = 148.5MHz or 148.5/1.001MHz PCLK = 13.5MHz PCLK = 27MHz GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 16 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 70 Name Timing Type Description RC_BYP Non Synchronous Input /Outpu t GS1560A CONTROL SIGNAL INPUT / STATUS SIGNAL OUTPUT Signal levels are LVCMOS/LVTTL compatible. This pin will be an input set by the application layer in slave mode, and will be an output set by the device in master mode. Master Mode (MASTER/SLAVE = HIGH) The RC_BYP signal will be HIGH only when the device has successfully locked to a SMPTE compliant input data stream. In this case, the serial digital loop-through output will be a reclocked version of the input. The RC_BYP signal will be LOW whenever the input does not conform to a SMPTE compliant data stream. In this case, the serial digital loop-through output will be a buffered version of the input. Slave Mode (MASTER/SLAVE = LOW) When set HIGH, the serial digital output will be a reclocked version of the input signal regardless of whether the device is in SMPTE, DVB-ASI or Data-Through mode. When set LOW, the serial digital output will be a buffered version of the input signal in all modes. R SV – – GS1561 Connect to CORE_VDD through 2.2kΩ. 71 MASTER/SLAVE Non Synchronous Input CONTROL SIGNAL INPUT Signal levels are LVCMOS/LVTTL compatible. Used to determine the input / output selection for the DVB_ASI, SD/HD, RC_BYP and SMPTE_BYPASS pins. When set HIGH, the GS1560A is set to operate in master mode where SD/HD, RC_BYP (GS1560A only) and SMPTE_BYPASS become status signal output pins set by the device. In this mode, the GS1560A will automatically detect, reclock, deserialize and process SD SMPTE and HD SMPTE input data. When set LOW, the GS1560A is set to operate in slave mode where DVB_ASI, SD/HD, RC_BYP (GS1560A only) and SMPTE_BYPASS become control signal input pins. In this mode, the application layer must set these external device pins for the correct reception of either SMPTE or DVB-ASI data. Slave mode also supports the reclocking and deserializing of data not conforming to SMPTE or DVB-ASI streams. 72 LOCKED Synchronous with PCLK Output STATUS SIGNAL OUTPUT Signal levels are LVCMOS / LVTTL compatible. The LOCKED signal will be HIGH whenever the device has correctly received and locked to SMPTE compliant data in SMPTE mode or DVB-ASI compliant data in DVB-ASI mode. It will be LOW otherwise. 73, 74 VCO, VCO Analog Input Differential inputs for the external VCO reference signal. For single ended devices such as the GO1555/GO1525*, VCO should be AC coupled to VCO_GND. VCO is nominally 1.485GHz. *For new designs use GO1555 GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 17 of 79 Table 1-1: Pin Descriptions (Continued) Pin Number 75 Name Timing Type Description VCO_GND – Output Power Ground reference for the external voltage controlled oscillator. Connect to pins 2, 4, 6, and 8 of the GO1555/GO1525*. This pin is an output. Should be isolated from all other grounds. *For new designs use GO1555 76 VCO_VCC – Output Power Power supply for the external voltage controlled oscillator. Connect to pin 7 of the GO1555/GO1525*. This pin is an output. Should be isolated from all other power supplies. *For new designs use GO1555 77 LF Analog Output Control voltage to external voltage controlled oscillator. Nominally +1.25V DC. PLL lock time constant capacitor connection. Normally connected to VCO_GND through 2.2nF. Control voltage to set the loop bandwidth of the integrated reclocker. Normally connected to VCO_GND through 40kΩ. Ground connection for the charge pump. Connect to analog GND. 78 CP_CAP Analog Input 79 LB_CONT Analog Input 80 CP_GND – Power GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 18 of 79 2. Electrical Characteristics 2.1 Absolute Maximum Ratings Parameter Supply Voltage Core Supply Voltage I/O Input Voltage Range (any input) Ambient Operating Temperature Storage Temperature Lead Temperature (soldering, 10 sec) ESD Protection On All Pins (see Note 2) NOTES: 1. See reflow solder profile ( on page 21) 2. HBM, per JESDA-114B Value/Units -0.3V to +2.1V -0.3V to +4.6V -2.0V to + 5.25V -20°C < TA < 85°C -40°C < TSTG < 125°C 230°C 1kV 2.2 DC Electrical Characteristics Table 2-1: DC Electrical Characteristics TA = 0°C to 70°C, unless otherwise specified. Parameter Symbol Conditions Min Typ Max Units Test Levels Notes System Operation Temperature Range Digital Core Supply Voltage Digital I/O Supply Voltage Charge Pump Supply Voltage Phase Detector Supply Voltage Input Buffer Supply Voltage Cable Driver Supply Voltage External VCO Supply Voltage Output TA CORE_VDD IO_VDD CP_VDD PD_VDD – 0 – 70 °C – 1 – – – – 1.65 3.0 3.0 1.65 1.8 3.3 3.3 1.8 1.95 3.6 3.6 1.95 V V V V 1 1 1 1 1 1 1 1 BUFF_VDD CD_VDD VCO_VCC – – – 1.65 1.71 2.25 1.8 1.8 2.50 1.95 1.89 2.75 V V V 1 1 1 1 1 – GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 19 of 79 Table 2-1: DC Electrical Characteristics (Continued) TA = 0°C to 70°C, unless otherwise specified. Parameter Symbol Conditions Min Typ Max Units Test Levels 1 Notes +1.8V Supply Current GS1560A +1.8V Supply Current GS1561 +3.3V Supply Current Total Device Power GS1560A Total Device Power GS1561 I1V8 – – – 245 mA 4 I1V8 – – – 200 mA 1 – I3V3 PD – – – – – – 55 625 mA mW 1 5 5 4, 5 PD – – – 545 mW 5 5 Digital I/O Input Logic LOW Input Logic HIGH Output Logic LOW Output Logic HIGH VIL VIH VOL VOH – – 8mA 8mA – 2.1 – IO_VDD - 0.4 – – 0.2 – 0.8 – 0.4 – V V V V 1 1 1 1 – – – – Input Input Bias Voltage RSET Voltage (GS1560A only) VB VRSET – RSET=281Ω – 0.54 1.45 0.6 – 0.66 V V 6 1 2 3 Output (GS1560A only) Output Common Mode Voltage VCMOUT 75Ω load, RSET=281Ω, SD and HD TEST LEVELS 1. Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges. 2. Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges using correlated test. 3. Production test at room temperature and nominal supply voltage. 4. QA sample test. 5. Calculated result based on Level 1, 2, or 3. 6. Not tested. Guaranteed by design simulations. 7. Not tested. Based on characterization of nominal parts. 8. Not tested. Based on existing design/characterization data of similar product. 9. Indirect test. NOTES 1. 2. 3. 4. 5. All DC and AC electrical parameters within specification. Input common mode is set by internal biasing resistors. Set by the value of the RSET resistor. (GS1560A only) Loop-through enabled. (GS1560A only) Measured in 20-bit mode. 0.8 1.0 1.2 V 1 – GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 20 of 79 2.3 AC Electrical Characteristics Table 2-2: AC Electrical Characteristics Parameter System Serial Digital Input Jitter Tolerance Master Mode Asynchronous Lock Time IJ T Nominal loop bandwidth No data to HD HD to SD No data to SD SD to HD Slave Mode Asynchronous Lock Time No data to HD No data to SD No data to DVB-ASI Device Latency 10-bit SD 20-bit HD DVB-ASI Reset Pulse Width treset – 0.6 – – – – – – – – – – 1 – – – – – – – – 21 21 11 – – 468 260 340 256 240 197 68 – – – – UI us us us us us us us PCLK PCLK PCLK ms 1 6,7 6,7 6,7 6,7 6,7 6,7 6,7 6 6 6 7 1 2 2 2 2 2 2 2 – – – 6 Symbol Conditions Min Typ Max Units Test Levels Notes Serial Digital Differential Input Serial Input Data Rate DRDDI – – 1.485, 1.485/1.001, 270 Serial Digital Input Signal Swing ΔVDDI Differential with internal 100Ω input termination 200 600 1000 – Gb/s Gb/s Mb/s mVp-p 1 – 1 – Serial Digital Output (GS1560A only) Serial Output Data Rate DRSDO – – 1.485, 1.485/1.001, 270 Serial Output Swing ΔVSDO RSET = 281Ω Load = 75Ω VDD = 1.8V Serial Output Rise Time 20% ~ 80% trSDO ORL compensation using recommended circuit — HD signal ORL compensation using recommended circuit — SD signal – 200 260 ps 1 – 720 800 880 – Gb/s Gb/s Mb/s mVp-p 1 – 1 – 400 550 1500 ps 1 – GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 21 of 79 Table 2-2: AC Electrical Characteristics Parameter Serial Output Fall Time 20% ~ 80% Symbol tfSDO Conditions ORL compensation using recommended circuit — HD signal ORL compensation using recommended circuit — SD signal Min – Typ 235 Max 260 Units ps Test Levels 1 Notes – 400 550 1500 ps 1 – Serial Output Intrinsic Jitter tIJ Pseudorandom and pathological HD signal Pseudorandom and pathological SD signal – 90 125 ps 1 3 – 270 350 ps 1 3 Serial Output Duty Cycle Distortion DCDSDO HD (1.485Gb/s) SD (270Mb/s) – – 10 20 – – ps ps 6,7 6,7 4 4 Parallel Output Parallel Clock Frequency Parallel Clock Duty Cycle Output Data Hold Time fPCLK DCPCLK tOH – – 20-bit HD 10-bit SD, 50% PCLK Duty Cycle Output Data Delay Time tOD 20-bit HD 10-bit SD, 50% PCLK Duty Cycle Output Data Rise/Fall Time tr/tf – 13.5 40 1.0 19.5 – – – – 50 – – – – – 148.5 60 – – 4.5 22.8 1.5 MHz % ns ns ns ns ns 1 1 1 1 1 1 6,7 – – 5 5 5 5 5 GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 22 of 79 Table 2-2: AC Electrical Characteristics Parameter GSPI GSPI Input Clock Frequency GSPI Input Clock Duty Cycle GSPI Input Data Setup Time GSPI Input Data Hold Time GSPI Output Data Hold Time GSPI Output Data Delay Time TEST LEVELS 1. Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges. 2. Production test at room temperature and nominal supply voltage with guardbands for supply and temperature ranges using correlated test. 3. Production test at room temperature and nominal supply voltage. 4. QA sample test. 5. Calculated result based on Level 1, 2, or 3. 6. Not tested. Guaranteed by design simulations. 7. Not tested. Based on characterization of nominal parts. 8. Not tested. Based on existing design/characterization data of similar product. 9. Indirect test. fSCLK DCSCLK – – – – – – – – – – 1. 2. 3. 4. – 40 0 – 2.10 – NOTES 6MHz sinewave modulation. HD = 1080i, SD = 525i Serial Digital Output Reclocked (RC_BYP = HIGH). Serial Duty Cycle Distortion is defined here to be the difference between the width of a ‘1’ bit, and the width of a ‘0’ bit. (GS1560A only) 5. With 15pF load. (GS1560A only) 6. See Device Reset on page 70, Figure 4-16. (GS1560A only) – 50 – – – – 6.6 60 – 1.43 – 7.27 MHz % ns ns ns ns 1 6,7 6,7 6,7 6,7 6,7 – – – – – – Symbol Conditions Min Typ Max Units Test Levels Notes GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 23 of 79 3. Input/Output Circuits All resistors in ohms, all capacitors in farads, unless otherwise shown. DDI VDD 50 45K TERM 150K 50 DDI Figure 3-1: Serial Digital Input VCO VDD 25 1.5K 5K 25 VCO Figure 3-2: VCO Input LB_CONT 865mV 7.2K Figure 3-3: PLL Loop Bandwidth Control GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 24 of 79 SDO SDO Figure 3-4: Serial Digital Output (GS1560A only) LF CP_CAP 300 Figure 3-5: VCO Control Output & PLL Lock Time Capacitor GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 25 of 79 3.1 Host Interface Map 15 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used VFO4-b7 VFO2-b7 VFO2-b6 VFO2-b5 VFO2-b4 VFO2-b3 VFO2-b2 VFO2-b1 VFO2-b0 VFO1-b7 VFO1-b6 VFO1-b5 VFO1-b4 VFO1-b3 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used VFO4-b6 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used VFO4-b5 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used VFO4-b4 Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used b11 b11 VFO4-b3 14 Not Used 13 Not Used 12 Not Used 11 Not Used REGISTER NAME ERROR_MASK ADDRESS 01Ah 019h 018h 017h 016h 015h 014h 013h 012h 011h 010h 00Fh 00Eh 00Dh 10 VD_STD_ ERR_MASK Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used b10 b10 b10 b10 VFO4-b2 9 FF_CRC_ ERR_MASK b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 b9 VFO4-b1 8 7 AP_CRC_ LOCK_ERR_ ERR_MASK MASK b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 VFO4-b0 VFO3-b7 6 CCS_ERR_ MASK b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 b6 VFO3-b6 5 YCS_ERR_ MASK b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 b5 VFO3-b5 4 3 2 CCRC_ERR_ YCRC_ERR_ LNUM_ERR MASK MASK _MASK b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 VFO3-b4 VFO3-b3 VFO3-b2 VFO1-b2 1 SAV_ERR_ MASK b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 b1 VFO3-b1 VFO1-b1 0 EAV_ERR_ MASK b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 b0 VFO3-b0 VFO1-b0 FF_LINE_END_F1 FF_LINE_START_F1 FF_LINE_END_F0 FF_LINE_START_F0 AP_LINE_END_F1 AP_LINE_START_F1 AP_LINE_END_F0 AP_LINE_START_F0 RASTER_STRUCTURE4 RASTER_STRUCTURE3 RASTER_STRUCTURE2 RASTER_STRUCTURE1 VIDEO_FORMAT_OUT _B VIDEO_FORMAT_OUT _A 00Ch ANC_TYPE5 ANC_TYPE4 ANC_TYPE3 ANC_TYPE2 ANC_TYPE1 VIDEO_STANDARD Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used Not Used ANC-UES ANC-IDA ANC-IDH ANC-EDA ANC-EDH FF-UES 00Bh 00Ah 009h 008h 007h 006h 005h 004h b15 b15 b15 b15 b15 Not Used b14 b14 b14 b14 b14 VDS-b4 b13 b13 b13 b13 b13 VDS-b3 b12 b12 b12 b12 b12 VDS-b2 b11 b11 b11 b11 b11 VDS-b1 b10 b10 b10 b10 b10 VDS-b0 b9 b9 b9 b9 b9 INT_PROG b8 b8 b8 b8 b8 STD_ LOCK FF-IDA b7 b7 b7 b7 b7 CDF-b3 FF-IDH LOCK_ERR Not Used b6 b6 b6 b6 b6 CDF-b2 FF-EDA CCS_ERR Not Used b5 b5 b5 b5 b5 CDF-b1 FF-EDH YCS_ERR ILLEGAL_ REMAP b4 b4 b4 b4 b4 CDF-b0 AP-UES CCRC_ERR EDH_CRC_ INS b3 b3 b3 b3 b3 YDF-b3 AP-IDA YCRC_ERR ANC_CSUM _INS b2 b2 b2 b2 b2 YDF-b2 AP-IDH LNUM_ERR CRC_INS b1 b1 b1 b1 b1 YDF-b1 AP-EDA SAV_ERR LNUM_ INS b0 b0 b0 b0 b0 YDF-b0 AP-EDH EAV_ERR TRS_INS EDH_FLAG ERROR_STATUS 003h 002h 001h VD_STD_ ERR Not Used IOPROC_DISABLE 000h FF_CRC_ ERR Not Used AP_CRC_ ERR H_CONFIG GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 26 of 79 3.1.1 Host Interface Map (R/W Configurable Registers) 15 14 13 12 11 10 VD_STD_ ERR_MASK REGISTER NAME ERROR_MASK ADDRESS 01Ah FF_LINE_END_F1 FF_LINE_START_F1 FF_LINE_END_F0 FF_LINE_START_F0 AP_LINE_END_F1 AP_LINE_START_F1 AP_LINE_END_F0 AP_LINE_START_F0 9 FF_CRC_ ERR_MASK b9 b9 b9 b9 b9 b9 b9 b9 8 7 AP_CRC_ LOCK_ERR_ ERR_MASK MASK b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 b8 b7 6 CCS_ERR_ MASK b6 b6 b6 b6 b6 b6 b6 b6 5 YCS_ERR_ MASK b5 b5 b5 b5 b5 b5 b5 b5 4 3 2 CCRC_ERR_ YCRC_ERR_ LNUM_ERR MASK MASK _MASK b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 b4 b3 b2 1 SAV_ERR_ MASK b1 b1 b1 b1 b1 b1 b1 b1 0 EAV_ERR_ MASK b0 b0 b0 b0 b0 b0 b0 b0 ANC_TYPE5 ANC_TYPE4 ANC_TYPE3 ANC_TYPE2 ANC_TYPE1 b15 b15 b15 b15 b15 b14 b14 b14 b14 b14 b13 b13 b13 b13 b13 b12 b12 b12 b12 b12 b11 b11 b11 b11 b11 b10 b10 b10 b10 b10 b9 b9 b9 b9 b9 b8 b8 b8 b8 b8 b7 b7 b7 b7 b7 b6 b6 b6 b6 b6 b5 b5 b5 b5 b5 b4 b4 b4 b4 b4 b3 b3 b3 b3 b3 b2 b2 b2 b2 b2 b1 b1 b1 b1 b1 b0 b0 b0 b0 b0 IOPROC_DISABLE 019h 018h 017h 016h 015h 014h 013h 012h 011h 010h 00Fh 00Eh 00Dh 00Ch 00Bh 00Ah 009h 008h 007h 006h 005h 004h 003h 002h 001h 000h H_CONFIG ILLEGAL_ REMAP EDH_CRC_ NS ANC_CSUM _INS CRC_INS LNUM_ INS TRS_INS GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 27 of 79 3.1.2 Host Interface Map (Read Only Registers) 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0 REGISTER NAME ADDRESS 01Ah 019h 018h 017h 016h 015h 014h 013h 012h 011h 010h 00Fh 00Eh 00Dh VFO4-b7 VFO2-b7 VFO2-b6 VFO2-b5 VFO2-b4 VFO2-b3 VFO2-b2 VFO2-b1 VFO2-b0 VFO1-b7 VFO1-b6 VFO4-b6 VFO4-b5 VFO4-b4 b11 b11 VFO4-b3 b10 b10 b10 b10 VFO4-b2 VFO1-b5 b9 b9 b9 b9 VFO4-b1 b8 b8 b8 b8 VFO4-b0 b7 b7 b7 b7 VFO3-b7 b6 b6 b6 b6 VFO3-b6 b5 b5 b5 b5 VFO3-b5 b4 b4 b4 b4 VFO3-b4 VFO1-b4 b3 b3 b3 b3 VFO3-b3 VFO1-b3 b2 b2 b2 b2 VFO3-b2 VFO1-b2 b1 b1 b1 b1 VFO3-b1 VFO1-b1 b0 b0 b0 b0 VFO3-b0 VFO1-b0 RASTER_STRUCTURE4 RASTER_STRUCTURE3 RASTER_STRUCTURE2 RASTER_STRUCTURE1 VIDEO_FORMAT_OUT_ B VIDEO_FORMAT_OUT_ A 00Ch VIDEO_STANDARD ANC-UES VD_STD_ ERR ANC-IDA ANC-IDH ANC-EDA ANC-EDH FF-UES FF_CRC_ ERR 00Bh 00Ah 009h 008h 007h 006h 005h 004h VDS-b4 VDS-b3 VDS-b2 VDS-b1 VDS-b0 INT_PROG STD_ LOCK FF-IDA AP_CRC_ ERR CDF-b3 FF-IDH LOCK_ERR CDF-b2 FF-EDA CCS_ERR CDF-b1 FF-EDH YCS_ERR CDF-b0 AP-UES CCRC_ERR YDF-b3 AP-IDA YCRC_ERR YDF-b2 AP-IDH LNUM_ERR YDF-b1 AP-EDA SAV_ERR YDF-b0 AP-EDH EAV_ERR EDH_FLAG ERROR_STATUS 003h 002h 001h 000h GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 28 of 79 4. Detailed Description 4.1 Functional Overview The GS1560A/GS1561 is a dual-rate reclocking deserializer. An integrated serial digital loop-through output is also included on the GS1560A only. When used in conjunction with the multi-rate GS1524 Adaptive Cable Equalizer and the external GO1555/GO1525* Voltage Controlled Oscillator, a receive solution at 1.485Gb/s, 1.485/1.001Gb/s or 270Mb/s is realized. The device has two basic modes of operation which determine precisely how SMPTE or DVB-ASI compliant input data streams are reclocked and processed. In master mode, (MASTER/SLAVE = HIGH), the GS1560A/GS1561 will automatically detect, reclock, deserialize and process SD SMPTE 259M-C or HD SMPTE 292M input data. In slave mode, (MASTER/SLAVE = LOW), the application layer must set external device pins for the correct reception of either SMPTE or DVB-ASI data. Slave mode also supports the reclocking and deserializing of data not conforming to SMPTE or DVB-ASI streams. The GS1560A includes an integrated cable driver is for serial input loop-through applications. It can be selected to output either buffered or reclocked data. The cable driver also features an output mute on loss of signal, high impedance mode, adjustable signal swing, and automatic dual slew-rate selection depending on HD/SD operational requirements. In the digital signal processing core, several data processing functions are implemented including error detection and correction and automatic video standards detection. These features are all enabled by default, but may be individually disabled via internal registers accessible through the GSPI host interface. Finally, the GS1560A/GS1561 contains a JTAG interface for boundary scan test implementations. *For new designs use GO1555 GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 29 of 79 4.2 Serial Digital Input The GS1560A/GS1561 contains two current mode differential serial digital input buffers, allowing the device to be connected to two SMPTE 259M-C or 292M compliant input signals. Both input buffers have internal 50Ω termination resistors which are connected to ground via the TERM1 and TERM2 pins. The input common mode level is set by internal biasing resistors such that the serial digital input signals must be AC coupled into the device. Gennum recommends using a capacitor value of 4.7uF to accommodate pathological signals. The input buffers use a separate power supply of +1.8V DC supplied via the BUFF_VDD and PDBUFF_GND pins. 4.2.1 Input Signal Selection A 2x1 input multiplexer is provided to allow the application layer to select between the two serial digital input streams using a single external pin. When IP_SEL is set HIGH, serial digital input 1 (DDI1 / DDI1) is selected as the input to the GS1560A/GS1561's reclocker stage. When IP_SEL is set LOW, serial digital input 2 (DDI2 / DDI2) is selected. 4.2.2 Carrier Detect Input For each of the differential inputs, an associated carrier detect input signal is included, (CD1 and CD2). These signals are generated by Gennum's family of automatic cable equalizers. When LOW, CDx indicates that a valid serial digital data stream is being delivered to the GS1560A/GS1561 by the equalizer. When HIGH, the serial digital input to the device should be considered invalid. If no equalizer precedes the device, the application layer should set CD1 and CD2 accordingly. NOTE: If the GS1524 Automatic Cable Equalizer is used, the MUTE/CD output signal from that device must be translated to TTL levels before passing to the GS1560A/GS1561 CDx inputs. See GS1560A Typical Application Circuit (Part A) on page 71 for a recommended transistor network that will set the correct voltage levels. A 2x1 input multiplexer is also provided for these signals. The internal carrier_detect signal is determined by the setting of the IP_SEL pin and is used by the lock detect block of the GS1560A/GS1561 to determine the lock status of the device, (see Lock Detect on page 34). 4.2.3 Single Input Configuration If the application requires a single differential input, the second set of inputs may be left unconnected. Tie the associated carrier detect pin HIGH, and leave the termination pin unconnected. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 30 of 79 4.3 Serial Digital Reclocker The output of the 2x1 serial digital input multiplexer passes to the GS1560A/GS1561's internal reclocker stage. The function of this block is to lock to the input data stream, extract a clean clock, and retime the serial digital data to remove high frequency jitter. The reclocker was designed with a 'hexabang' phase and frequency detector. That is, the PFD used can identify six 'degrees' of phase / frequency misalignment between the input data stream and the clock signal provided by the VCO, and correspondingly signal the charge pump to produce six different control voltages. This results in fast and accurate locking of the PLL to the data stream. In master mode, the operating center frequency of the reclocker is toggled between 270Mb/s and 1.485Gb/s by the lock detect block, (see Lock Detect on page 34). In slave mode, however, the center frequency is determined entirely by the SD/HD input control signal set by the application layer. If lock is achieved, the reclocker provides an internal pll_lock signal to the lock detect block of the device. 4.3.1 External VCO The GS1560A/GS1561 requires the external GO1555/GO1525* Voltage Controlled Oscillator as part of the reclocker's phase-locked loop. This external VCO implementation was chosen to ensure high quality reclocking. Power for the external VCO is generated entirely by the GS1560A/GS1561 from an integrated voltage regulator. The internal regulator uses +3.3V DC supplied via the CP_VDD / CP_GND pins to provide +2.5V DC on the VCO_VCC / VCO_GND pins. The control voltage to the VCO is output from the GS1560A/GS1561 on the LF pin and requires 4.7kΩ pull-up and pull-down resistors to ensure correct operation. The GO1555/GO1525* produces a 1.485GHz reference signal for the reclocker, input on the VCO pin of the GS1560A/GS1561. Both LF and VCO signals should be referenced to the supplied VCO_GND as shown in the recommended application circuit of GS1560A Typical Application Circuit (Part A) on page 71. *For new designs use GO1555 4.3.2 Loop Bandwidth The loop bandwidth of the integrated reclocker is nominally 1.4MHz, but may be increased or decreased via the LB_CONT pin. It is recommended that this pin be connected to VCO_GND through 39.2kΩ to maximize the input jitter tolerance of the device. 4.4 Serial Digital Loop-Through Output (GS1560A only) The GS1560A contains an integrated current mode differential serial digital cable driver with automatic slew rate control. When enabled, this serial digital output provides an active loop-through of the input signal. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 31 of 79 To enable the loop-through output, SDO_EN/DIS must be set HIGH by the application layer. Setting the SDO_EN/DIS signal LOW will cause the SDO and SDO output pins to become high impedance, resulting in reduced device power consumption. With suitable external return loss matching circuitry, the GS1560A's loop-through outputs will provide a minimum output return loss of -15dB at SD rates. Gennum recommends using the GS1528 SDI Dual Slew-Rate Cable Driver to meet output return loss specifications at HD rates. The integrated cable driver uses a separate power supply of +1.8V DC supplied via the CD_VDD and CD_GND pins. 4.4.1 Output Swing Nominally, the voltage swing of the serial digital loop-through output is 800mVp-p single-ended into a 75Ω load. This is set externally by connecting the RSET pin to CD_VDD through 281Ω. The loop-through output swing may be decreased by increasing the value of the RSET resistor. The relationship is approximated by the curve shown in Figure 4-1. Alternatively, the serial digital output can drive 800mVp-p into a 50Ω load. Since the output swing is reduced by a factor of approximately one third when the smaller load is used, the RSET resistor must be 187Ω to obtain 800mVp-p. 1000 900 800 DVSDO(mVp-p) 700 600 500 400 300 250 300 350 400 450 500 550 600 650 700 750 RSET(W) Figure 4-1: Serial Digital Loop-Through Output Swing GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 32 of 79 4.4.2 Reclocker Bypass Control The serial digital loop-through output may be either a buffered version of the serial digital input signal, or a reclocked version of that signal. When operating in slave mode, the application layer may choose the reclocked output by setting RC_BYP to logic HIGH. If RC_BYP is set LOW, the data stream will bypass the internal reclocker and the serial digital output will be a buffered version of the input. When operating in master mode, the device will assert the RC_BYP pin HIGH only when it has successfully locked to a SMPTE input data stream, (see Lock Detect on page 34). In this case, the serial digital loop-through output will be a reclocked version of the input. 4.4.3 Serial Digital Output Mute The GS1560A will automatically mute the serial digital loop-through output in both master and slave modes when the internal carrier_detect signal indicates an invalid serial input. The loop-through output will also be muted in slave mode when SDO/SDO is selected as reclocked, (RC_BYP = HIGH), but the lock detect block has failed to lock to the data stream, (LOCKED = LOW). Table 4-1 summarizes the possible states of the serial digital loop-through output data stream. Table 4-1: Serial Digital Loop-Through Output Status SLAVE MODE RC_BYP (INPUT) HIGH LOW HIGH X SDO RECLOCKED BUFFERED MUTED MUTED CD LOW LOW LOW HIGH LOCKED HIGH X LOW LOW* MASTER MODE RC_BYP (OUTPUT) HIGH LOW LOW SDO RECLOCKED BUFFERED MUTED CD LOW LOW HIGH LOCKED HIGH LOW LOW* *NOTE: LOCKED = HIGH if and only if CD = LOW GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 33 of 79 4.5 Serial-To-Parallel Conversion The retimed data and phase-locked clock signals from the reclocker are fed to the serial-to-parallel converter. The function of this block is to extract 10-bit or 20-bit parallel data words from the reclocked serial data stream and present them to the SMPTE and DVB-ASI word alignment blocks simultaneously. 4.6 Modes Of Operation The GS1560A/GS1561 has two basic modes of operation which determine how the lock detect block controls the integrated reclocker. Master mode is enabled when the application layer sets the MASTER/SLAVE pin HIGH, and slave mode is enabled when MASTER/SLAVE is set LOW. 4.6.1 Lock Detect The lock detect block controls the center frequency of the integrated reclocker to ensure lock to the received serial digital data stream is achieved, and indicates via the LOCKED output pin that the device has detected the appropriate sync words. In Data Through mode, the detection for appropriate sync words is turned off. The LOCKED pin is an indication of analog lock. Lock detection is a continuous process, which begins at device power up or after a system reset, and continues until the device is powered down or held in reset. The lock detection algorithm first determines if a valid serial digital input signal has been presented to the device by sampling the internal carrier_detect signal. As described in Carrier Detect Input on page 30, this signal will be LOW when a good serial digital input signal has been detected. If the carrier_detect signal is HIGH, the serial data into the device is considered invalid, and the VCO frequency will be set to the center of the pull range. The LOCKED pin will be LOW and all outputs of the device except for the PCLK output will be muted. Instead, the PCLK output frequency will operate within +/-3% of the rates shown in Table 4-16 of Parallel Output Clock (PCLK) on page 66. NOTE: When the device is operating in DVB-ASI slave mode, the parallel outputs will not mute when the carrier_detect signal is HIGH. The LOCKED signal will function normally. If a valid input signal has been detected, and the device is in master mode, the lock algorithm will enter a hunt phase where four attempts are made to detect the presence of either SMPTE TRS sync words. At each attempt, the center frequency of the reclocker will be toggled between 270Mb/s and 1.485Gb/s. Assuming that a valid SMPTE or DVB-ASI signal has been applied to the device, asynchronous lock times will be as listed in Table 2-2: AC Electrical Characteristics. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 34 of 79 In slave mode, the application layer fixes the center frequency of the reclocker such that the lock algorithm will attempt to lock within the single data rate determined by the setting of the SD/HD pin. Asynchronous lock times are also listed in the Table 2-2: AC Electrical Characteristics. NOTE: The PCLK output will continue to operate during the lock detection process. The frequency may toggle between 148MHz and 27MHz when the 20bit/10bit pin is set LOW, or between 74MHz and 13.5MHz when 20bit/10bit is set HIGH. For SMPTE inputs, the lock detect block will only assert the LOCKED output signal HIGH if (1) the reclocker has locked to the input data stream as indicated by the internal pll_lock signal, and (2) TRS sync words have been correctly identified. If after four attempts lock has not been achieved, the lock detection algorithm will enter into PLL lock mode. In this mode, the reclocker will attempt to lock to the input data stream without detecting SMPTE TRS words. This unassisted process can take up to 10ms to achieve lock. When reclocker lock as indicated by the internal pll_lock signal is achieved in this mode, one of the following will occur: 1. In slave mode, data will be passed directly to the parallel outputs without any further processing taking place and the LOCKED signal will be asserted HIGH if and only if the SMPTE_BYPASS and DVB_ASI input pins are set LOW; or 2. In master mode, the LOCKED signal will be asserted LOW, the parallel outputs will be latched to logic LOW, and the SMPTE_BYPASS output signal will also be set LOW. 4.6.2 Master Mode Recall that the GS1560A/GS1561 is said to be in master mode when the MASTER/SLAVE input signal is set HIGH. In this case, the following three device pins become output status signals: • • • SMPTE_BYPASS SD/HD RC_BYP (GS1560A only) The combined setting of these pins will indicate whether the device has locked to valid SMPTE data at SD or HD rates. DVB_ASI functionality is not supported in Master mode. Table 4-2 shows the possible combinations. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 35 of 79 4.6.3 Slave Mode The GS1560A/GS1561 is said to be in slave mode when the MASTER/SLAVE input signal is set LOW. In this case, the device pins listed in Master Mode on page 35, in addition to the DVB_ASI pin, become input control signals. It is required that the application layer set the inputs to reflect the appropriate input data format (SMPTE_BYPASS, DVB_ASI, and SD/HD). If just one of these pins is configured incorrectly, the device will not lock to the input data stream, and the DATA_ERROR pin will be set LOW. The input signals, RC_BYP (GS1560A only), allows the application layer to determine whether the serial digital loop-through output will be a reclocked or buffered version of the input, Reclocker Bypass Control on page 33. Table 4-3 shows the required settings for various input formats. Table 4-2: Master Mode Output Status Signals PIN SETTINGS FORMAT SMPTE_BYPASS SD/HD RC_BYP (GS1560A only) HIGH HIGH LOW HD SMPTE SD SMPTE NOT SMPTE* HIGH HIGH LOW LOW HIGH HIGH OR LOW *NOTE: When the device locks to the data stream in PLL lock mode, the parallel outputs will be latched LOW, and the serial loop-through output (GS1560A only) will be a buffered version of the input. Table 4-3: Slave Mode Control Signals PIN SETTINGS FORMAT HD SMPTE SD SMPTE DVB-ASI NOT SMPTE OR DVB-ASI* SMPTE_BYPASS HIGH HIGH LOW LOW DVB_ASI LOW LOW HIGH LOW SD/HD LOW HIGH HIGH HIGH OR LOW *NOTE: See Data Through Mode on page 45 for a complete description of Data Through mode. 4.7 SMPTE Functionality The GS1560A/GS1561 is said to be in SMPTE mode once the device has detected SMPTE TRS sync words and locked to the input data stream as described in Lock Detect on GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 36 of 79 page 34. The device will remain in SMPTE mode until such time that SMPTE TRS sync words fail to be detected. The lock detect block may also drop out of SMPTE mode under the following conditions: • • • • RESET_TRST is asserted LOW CDx is HIGH SMPTE_BYPASS is asserted LOW in slave mode DVB_ASI is asserted HIGH in slave mode TRS word detection is a continuous process and both 8-bit and 10-bit TRS words will be identified by the device in both SD and HD modes. In master mode, the GS1560A/GS1561 sets the SMPTE_BYPASS pin HIGH to indicate that it has locked to a SMPTE input data stream. When operating in slave mode, the application layer must assert the DVB_ASI pin LOW and the SMPTE_BYPASS pin HIGH in order to enable SMPTE operation. 4.7.1 SMPTE Descrambling and Word Alignment After serial-to-parallel conversion, the internal 10-bit or 20-bit data bus is fed to the SMPTE descramble and word alignment block. The function of this block is to carry out NRZI-to-NRZ decoding, descrambling according to SMPTE 259M or 292M, and word alignment of the data to the TRS sync words. Word alignment occurs when two consecutive valid TRS words (SAV and EAV inclusive) with the same bit alignment have been detected. In normal operation, re-synchronization of the word alignment process will only take place when two consecutive identical TRS word positions have been detected. When automatic or manual switch line lock handling is 'actioned', (see Switch Line Lock Handling on page 38), word alignment re-synchronization will occur on the next received TRS code word. 4.7.2 Internal Flywheel The GS1560A/GS1561 has an internal flywheel which is used in the generation of internal / external timing signals, in the detection and correction of certain error conditions and in automatic video standards detection. It is only operational in SMPTE mode. The flywheel consists of a number of counters and comparators operating at video pixel and video line rates. These counters maintain information about the total line length, active line length, total number of lines per field / frame, and total active lines per field / frame for the received video stream. The flywheel 'learns' the video standard by timing the horizontal and vertical reference information contained in the TRS ID words of the received video stream. Full synchronization of the flywheel to the received video standard therefore requires one complete video frame. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 37 of 79 Once synchronization has been achieved, the flywheel will continue to monitor the received TRS timing information to maintain synchronization. The FW_EN/DIS input pin controls the synchronization mechanism of the flywheel. When this input signal is LOW, the flywheel will re-synchronize all pixel and line based counters on every received TRS ID word. When FW_EN/DIS is held HIGH, re-synchronization of the pixel and line based counters will only take place when a consistent synchronization error has been detected. Two consecutive video lines with identical TRS timing different to the current flywheel timing must occur to initiate re-synchronization of the counters. This provides a measure of noise immunity to internal and external timing signal generation. The flywheel will be disabled should the LOCKED signal or the RESET_TRST signal be LOW. A LOW to HIGH transition on either signal will cause the flywheel to re-acquire synchronization on the next received TRS word, regardless of the setting of the FW_EN/DIS pin. 4.7.3 Switch Line Lock Handling The principal of switch line lock handling is that the switching of synchronous video sources will only disturb the horizontal timing and alignment of the stream, whereas the vertical timing remains in synchronization. To account for the horizontal disturbance caused by a synchronous switch, it is necessary to re-synchronize the flywheel immediately after the switch has taken place. Rapid re-synchronization of the GS1560A/GS1561 to the new video standard can be achieved by controlling the flywheel using the FW_EN/DIS pin. At every PCLK cycle the device samples the FW_EN/DIS pin. When a logic LOW to HIGH transition at this pin is detected anywhere within the active line, the flywheel will re-synchronize immediately to the next TRS word. This is shown in Figure 4-2. To ensure switch line lock handling, the FW_EN/DIS signal should be LOW for a minimum of one PCLK cycle (maximum one video line) anywhere within the active portion of the line on which the switch has taken place. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 38 of 79 Switch point Video source 1 EAV ANC SAV ACTIVE PICTURE EAV ANC SAV EAV ACTIVE PICTURE ANC EAV ANC SAV ACTIVE PICTURE EAV ANC SAV Video source 2 EAV ANC SAV ACTIVE PICTURE EAV ANC SAV EAV ACTIVE PICTURE ANC EAV ANC SAV ACTIVE PICTURE EAV ANC SAV switch video source 1 to 2 DATA IN EAV ANC SAV ACTIVE PICTURE EAV ANC SAV ACTIVE PICTURE ANC EAV ANC SAV ACTIVE PICTURE EAV ANC SAV DATA OUT Flywheel TRS position FW_EN/DIS EAV ANC SAV ACTIVE PICTURE EAV ANC SAV ACTIVE PICTURE ANC EAV ANC SAV ACTIVE PICTURE EAV ANC SAV Flywheel re-synch Switch point Video source 1 EAV ANC SAV ACTIVE PICTURE EAV ANC SAV EAV ACTIVE PICTURE ANC EAV ANC SAV ACTIVE PICTURE EAV ANC SAV Video source 2 EAV ANC SAV ACTIVE PICTURE EAV ANC SAV EAV ACTIVE PICTURE ANC EAV ANC SAV ACTIVE PICTURE EAV ANC SAV switch video source 2 to 1 DATA IN EAV ANC SAV ACTIVE PICTURE EAV ANC SAV ACTIVE PICTURE EAV ANC SAV ACTIVE PICTURE EAV ANC SAV DATA OUT Flywheel TRS position FW_EN/DIS EAV ANC SAV ACTIVE PICTURE EAV ANC SAV ACTIVE PICTURE EAV ANC SAV ACTIVE PICTURE EAV ANC SAV Flywheel re-synch Figure 4-2: Switch Line Locking The ability to manually re-synchronize the flywheel is also important when switching asynchronous sources or to implement other non-standardized video switching functions. The GS1560A/GS1561 also implements automatic switch line lock handling. By utilizing the synchronous switch points defined by SMPTE RP168 for all major video standards with the automatic video standards detect function, the device automatically re-synchronizes the flywheel at the switch point. This function will occur regardless of the setting of the FW_EN/DIS pin. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 39 of 79 The switch line is defined as follows: • • • • • • • For 525 line interlaced systems: re-sync takes place at the end of lines 10 & 273. For 525 line progressive systems: re-sync takes place at the end of line 10. For 625 line interlaced systems: re-sync takes place at the end of lines 6 & 319. For 625 line progressive systems: re-sync takes place at the end of line 6. For 750 line progressive systems: re-sync takes place at the end of line 7. For 1125 line interlaced systems: re-sync takes place at the end of lines 7 & 568. For 1125 line progressive systems: re-sync takes place at the end of line 7. A full list of all major video standards and switching lines is shown in Table 4-4. NOTE 1: The flywheel timing will define the line count such that the line numbers shown in Table 4-4 may not correspond directly to the digital line counts. NOTE 2: Unless indicated by SMPTE 352M payload identifier packets, the GS1560A/GS1561 will not distinguish between 50/60 frames PsF and 25/30 frames interlaced for the 1125 line video systems; 24 PsF will be identified. Table 4-4: Switch Line Position for Digital Systems System HD-SDTI Video Format 1920x1080 (PsF) 1920x1080 (2:1) 1280x720 (1:1) Sampling 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 Signal Standard 274M 274M 296M BT.656 125M 296M 296M 296M 296M 296M 274M + RP211 274M + RP211 274M + RP211 274M + RP211 274M + RP211 Parallel Interface 274M + 348M 274M + 348M 296M + 348M BT.656 + 305M 125M + 305M 296M 296M 296M 296M 296M 274M + RP211 274M + RP211 274M + RP211 274M + RP211 274M + RP211 Serial Interface 292M 292M 292M 259M 259M 296M 296M 296M 296M 296M 292M 292M 292M 292M 292M Switch Line No. 7 7, 569 7 6, 319 10, 273 7 7 7 7 7 7 7 7 7, 569 7, 569 SDTI 720x576/50 (2:1) 720x483/59.94 (2:1) 750 1280x720/60 (1:1) 1280x720/50 (1:1) 1280x720/30 (1:1) 1280x720/25 (1:1) 1280x720/24 (1:1) 1125 1920x1080/30 (PsF) 1920x1080/25 (PsF) 1920x1080/24 (PsF) 1920x1080/60 (2:1) 1920x1080/50 (2:1) GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 40 of 79 Table 4-4: Switch Line Position for Digital Systems System 525 Video Format 960x483/59.94 (2:1) 960x483/59.94 (2:1) 720x483/59.94 (2:1) 720x483/59.94 (2:1) 720x483/59.94 (2:1) 720x483/59.94 (2:1) 720x483/59.94 (2:1) 720x483/59.94 (2:1) 720x483/59.94 (1:1) 720x483/59.94 (1:1) 720x483/59.94 (1:1) 720x483/59.94 (1:1) 720x483/59.94 (1:1) Sampling 4:2:2 4:2:2 4:4:4:4 4:4:4:4 4:4:4:4 4:4:4:4 4:2:2 4:2:2 4:2:2 4:2:2 4:2:2 4:2:0 4:2:0 4:2:2 4:2:2 4:2:2 4:2:0 4:2:0 4:2:2 4:2:2 4:4:4:4 4:4:4:4 4:4:4:4 4:4:4:4 4:2:2 4:2:2 Signal Standard 267M 267M 267M 267M 267M 267M 125M 125M 293M 293M 293M 293M 293M BT.1358 BT.1358 BT.1358 BT.1358 BT.1358 BT.601 BT.601 BT.799 BT.799 BT.799 BT.799 BT.601 BT.601 Parallel Interface 349M 267M 349M 347M RP174 RP175 349M 125M 349M 347M 293M 349M 293M 349M 347M BT.1358 349M BT.1358 349M BT.656 349M 347M BT.799 BT.799 349M 125M Serial Interface 292M 259M 292M 344M 344M RP175 292M 259M 292M 344M 294M 292M 294M 292M 344M BT.1362 292M BT.1362 292M 259M 292M 344M 344M – 292M 259M Switch Line No. 10, 273 10, 273 10, 273 10, 273 10, 273 10, 273 10, 273 10, 273 10 10 10 10 10 6 6 6 6 6 6, 319 6, 319 6, 319 6, 319 6, 319 6, 319 6, 319 6, 319 625 720x576/50 (1:1) 720x576/50 (1:1) 720x576/50 (1:1) 720x576/50 (1:1) 720x576/50 (1:1) 960x576/50 (2:1) 960x576/50 (2:1) 720x576/50 (2:1) 720x576/50 (2:1) 720x576/50 (2:1) 720x576/50 (2:1) 720x576/50 (2:1) 720x576/50 (2:1) GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 41 of 79 4.7.4 HVF Timing Signal Generation The GS1560A/GS1561 extracts critical timing parameters from either the received TRS signals (FW_EN/DIS = LOW), or from the internal flywheel-timing generator (FW_EN/DIS = HIGH). Horizontal blanking period (H), vertical blanking period (V), and even / odd field (F) timing are all extracted and presented to the application layer via the H:V:F status output pins. The H signal timing is configurable via the H_CONFIG bit of the internal IOPROC_DISABLE register as either active line based blanking, or TRS based blanking, (see Error Correction and Insertion on page 60). Active line based blanking is enabled when the H_CONFIG bit is set LOW. In this mode, the H output is HIGH for the entire horizontal blanking period, including the EAV and SAV TRS words. This is the default H timing used by the device. When H_CONFIG is set HIGH, TRS based blanking is enabled. In this case, the H output will be HIGH for the entire horizontal blanking period as indicated by the H bit in the received TRS ID words. The timing of these signals is shown in Figure 4-3. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 42 of 79 PCLK LUMA DATA OUT 3FF 000 000 XYZ (eav) XYZ (eav) 3FF 000 000 XYZ (sav) XYZ (sav) CHROMA DATA OUT 3FF 000 000 3FF 000 000 H V F H:V:F TIMING - HD 20-BIT OUTPUT MODE PCLK MULTIPLEXED Y/Cr/Cb DATA OUT H V F 3FF 3FF 000 000 000 000 XYZ (eav) XYZ (eav) H:V:F TIMING AT EAV - HD 10-BIT OUTPUT MODE PCLK MULTIPLEXED Y/Cr/Cb DATA OUT H V F 3FF 3FF 000 000 000 000 XYZ (sav) XYZ (sav) H;V:F TIMING AT SAV - HD 10-BIT OUTPUT MODE PCLK CHROMA DATA OUT 3FF 000 3FF 000 LUMA DATA OUT H V F 000 XYZ (eav) 000 XYZ (SAV) H SIGNAL TIMING: H_CONFIG = LOW H_CONFIG = HIGH H:V:F TIMING - SD 20-BIT OUTPUT MODE PCLK MULTIPLEXED Y/Cr/Cb DATA OUT H V F 3FF 000 000 XYZ (eav) 3FF 000 000 XYZ (sav) H:V:F TIMING - SD 10-BIT OUTPUT MODE Figure 4-3: H, V, F Timing GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 43 of 79 4.8 DVB-ASI Functionality The GS9060 conforms to DVB-ASI standard EN 50083-9:1998. The lock detect block may drop out of DVB-ASI mode under the following conditions: • • • • RESET_TRST is asserted LOW CDx is HIGH SMPTE_BYPASS is asserted HIGH in slave mode DVB_ASI is asserted LOW in slave mode DVB_ASI functionality is only supported in Slave mode. To operate in DVB_ASI mode, the device must be in Slave mode, and the application layer must set the SD/HD pin HIGH, in addition to setting SMPTE_BYPASS LOW and DVB_ASI HIGH. 4.8.1 Transport Packet Format Transport packet structure shall conform to the specifications of EN/ISO/IEC 13818-1 and ETS 300 429 for Transport Stream Packets. The packet length can be 188 or 204 bytes. 4.8.2 DVB-ASI 8b/10b Decoding and Word Alignment After serial-to-parallel conversion, the internal 10-bit data bus is fed to the DVB-ASI 8b/10b decode and word alignment block. The function of this block is to word align the data to the K28.5 sync characters, and 8b/10b decode and bit-swap the data to achieve bit alignment with the data outputs. The extracted 8-bit data will be presented to DOUT[17:10], bypassing all internal SMPTE mode data processing. NOTE: When operating in DVB-ASI mode, DOUT[9:0] are forced LOW. GS1560A/GS1561 HD-LINX® II Dual-Rate Deserializer Data Sheet 27360 - 12 June 2009 44 of 79 4.8.3 Status Signal Outputs In DVB-ASI mode, the DOUT19 and DOUT18 pins will be configured as DVB-ASI status signals SYNCOUT and WORDERR respectively. SYNCOUT will be HIGH whenever a K28.5 sync character is present on the output. This output may be used to drive the write enable signal of an external FIFO, thus providing a means of removing the K28.5 sync characters from the data stream. Parallel DVB-ASI data may then be clocked out of the FIFO at some rate less than 27MHz. See Figure 4-4. WORDERR will be high whenever the device has detected a running disparity error or illegal code word. DDI DDI GS1560A / GS1561 AOUT ~ HOUT 8 8 TS FE FF WORDERR FIFO WORDERR PCLK = 27MHz SYNCOUT CLK_IN WE CLK_OUT READ_CLK