AFBR-7QER20Z

AFBR-7QERxxZ 40 Gigabit Ethernet & InfiniBand QDR QSFP+ Pluggable, Parallel Active Optical Cable Data Sheet Description Features The Avago Technologies AFBR-7QERxxZ is a FourChannel, Pluggable, Parallel, Fiber-Optic QSFP+ Active Optical Cable (AOC) solution for 40 Gigabit Ethernet Applications. This AOC is a high performance cable for short-range multi-lane data communication and interconnect applications. It integrates four data lanes in each direction with 40 Gbps aggregate bandwidth. Each lane can operate at 10.3125 Gbps. These cables also support 4 × 10G InfiniBand QDR applications and are backwards compatible to the 4 × 5G IB DDR and 4 × 2.5G IB single IB SDR applications. • Compliant to the 40GBASE-SR4 and XLPPI Specification per IEEE 802.3ba-2010 and supporting 40G-IB-QDR/ 20G-IB-DDR/10G-IB-SDR applications These Active Optical Cables operate over multimode fiber systems using a nominal wavelength of 850 nm. The electrical interface uses a 38 contact edge type connector. This AOC incorporates Avago Technologies proven integrated circuit and VCSEL technology to provide reliable long life, high performance, and consistent service. • Power Level 1: Max Power < 1.5 W • High port density: 21 mm horizontal port pitch • Operate at 10.3125 Gbps per channel with 64b/66b encoded data for 40GbE application and at 10 Gbps with 8b/10b compatible encoded data for 40G-IB-QDR application • 0 to 70 °C case temperature operating range • Proven High Reliability 850 nm technology: Avago VCSEL transmitter and Avago PIN receiver • Hot pluggable for ease of servicing and installation • Two Wire Serial (TWS) interface Part Number 40 Gigabit Ethernet & InfiniBand QDR AFBR-7QERxxZ 40GbE QSFP+ to 4× 10GbE SFP+ Breakout AOC AFBR-7IERxxZ Where xx = cable length in meters For specifications pertaining to the SFP+ Active Cable-end see AV02-2948EN AFBR-7CERxxZ SFP+ Active Optical Cable (AOC) Datasheet Evaluation Board AFBR-79Q4EKZ* Evaluation Kit AFBR-79Q2EKZ** * Includes GUI and User Guide ** Includes GUI, User Guide, i-Port and Power Supply Note: Two evaluation boards are needed to run the bi-directional QSFP+ Active Cable Assembly Patent - www.avagotech.com/patents • Compliant to the industry standard SFF-8436 QSFP+ Specification • Utilizes optical fiber for high density and thin, lightweight cable management Applications • 40GbE and 40G-IB-QDR / 20G-IB-DDR / 10G-IB-SDR interconnects • Datacom/Telecom switch and router connections • Data aggregation and backplane applications • Proprietary protocol and density applications Receiver Part Number Description AFBR-7QER01Z 1 m QSFP+ Active Optical Cable AFBR-7QER02Z 2 m QSFP+ Active Optical Cable AFBR-7QER03Z 3 m QSFP+ Active Optical Cable AFBR-7QER05Z 5 m QSFP+ Active Optical Cable AFBR-7QER07Z 7 m QSFP+ Active Optical Cable AFBR-7QER10Z 10 m QSFP+ Active Optical Cable AFBR-7QER15Z 15 m QSFP+ Active Optical Cable AFBR-7QER20Z 20 m QSFP+ Active Optical Cable Transmitter The optical transmitter portion of the AOC (see Figure 1) incorporates 4 VCSELs (Vertical Cavity Surface Emitting Laser), input buffer and laser drivers and control & bias blocks. The transmitter is designed for EN 60825 and CDRH eye safety compliance; Class 1M out of the module. The Tx Input Buffer provides CML compatible differential inputs presenting a nominal differential input impedance of 100 ohms. AC coupling capacitors are located inside the QSFP+ AOC and are not required on the host board. For AOC interrogation, the control interface (LVTTL compatible) incorporates a Two Wire Serial (TWS) interface of clock and data signals. Tx_Disable is available through the TWS interface. SCL SDA ModSelL LPMode ModPresL ResetL IntL Control Diagnostic Monitors Dout[3:0][p/n] (8) RX Output Buffer TIA Figure 1. Active Optical Cable Diagram – Active components 2 Optical Interface Laser Driver 4 PINs TX Input Buffer Flags are set and interrupts generated for Rx loss of optical input signal (LOS). Flags are latched and will remain set even if the condition initiating the flag clears and operation resumes. Interrupts can be masked and flags are reset upon reading the appropriate flag register. The electrical output will squelch for loss of input signal (unless squelch is disabled). To reduce the need for polling, the hardware interrupt signal is provided to inform hosts of an assertion of Rx LOS. 4 VCSELs Electrical Interface Din[3:0][p/n] (8) The optical receiver portion of the Active Cable-end (see Figure 1) incorporates 4 PIN photodiodes, TIAs, channel output buffer and control & bias blocks. The Rx Output Buffer provides CML compatible differential outputs for the high speed electrical interface presenting nominal single-ended output impedances of 50 ohms to AC ground and 100 ohms differentially that should be differentially terminated with 100 ohms. AC coupling capacitors are located inside the QSFP+ and are not required on the host board. For AOC interrogation and control, the control interface (LVTTL compatible) incorporates a Two Wire Serial (TWS) interface of clock and data signals. Rx_LOS and Rx Squelch are available through the TWS interface. QSFP + Module Tx In p Tx In n Tx (Optical Interface) Rx Rx Out n Optical Connector/Port Rx Out p Module Card Edge (Host Interface) ASIC (SerDes) Host Edge Card Connector Host Board (Only one channel shown for simplicity) Rx 1 Rx 2 Rx 3 Rx 4 Tx 4 Tx 3 Tx 2 Tx 1 Figure 2. Application Reference Diagram Control Signal Interface Regulatory & Compliance Issues The module has the following low speed signals for control and status: ModSelL, LPMode, ResetL, ModPrsL, IntL. In addition, there is an industry standard two wire serial interface scaled for 3.3 volt LVTTL. It is implemented as a slave device. Signals and timing characteristics are further defined in the Control Interface section. The registers of the serial interface memory are defined in the Memory Map section and corresponding Avago Technologies QSFP+ Memory Map document Various standards and regulations apply to the cables. These include eye-safety, EMC, ESD and RoHS. See the Regulatory Section for details, including component recognition. Please note the transmitter is a Class 1M laser product – In the event of fiber breakage, DO NOT VIEW RADIATION DIRECTLY WITH OPTICAL INSTRUMENTS. See Regulatory Compliance Table for details. High Speed Signal Interface The module is designed to meet the package outline defined in the SFF-8436 Specification for QSFP+ Optical Modules. See the package outline and host board footprint figures (Figures 10 – 13) for details. Figure 2 shows the interface between an ASIC/SerDes and the QSFP+ AOC. For simplicity, only one channel is shown. The high speed signal lines are AC-coupled 100 ohm differential lines. The AC coupling is inside the QSFP+ AOC and not required on the host board. The 100 ohm differential terminations are inside the QSFP+ AOC for the transmitter lines and at the host ASIC/SerDes for the receiver lines. All transmitter and receiver electrical channels are compliant to module XLPPI specifications per IEEE 802.3ba. 3 Package Outline Handling and Cleaning The Active Cable-end can be damaged by exposure to current surges and over voltage events. Care should be taken to restrict exposure to the conditions defined in the Absolute Maximum Ratings. Wave soldering, reflow soldering and/or aqueous wash process with the modules on board are not recommended. Normal handling precautions for electrostatic discharge sensitive devices should be observed. Absolute Maximum Ratings Stress in excess of any of the individual Absolute Maximum Ratings can cause immediate catastrophic damage to the AOC even if all other parameters are within Recommended Operation Conditions. It should not be assumed that limiting values of more than one parameter can be applied to the AOC concurrently. Exposure to any of the Absolute Maximum Ratings for extended periods can adversely affect reliability. Parameter Symbol Min Max Units Storage Temperature Ts -40 85 °C 3.3 V Power Supply Voltage Vcc -0.5 3.6 V -0.5 4 V 1.0 V Data Input Voltage – Single Ended Data Input Voltage – Differential |Vdip - Vdin| Control Input Voltage Vi -0.5 Vcc+0.5, 3.6 V Control Output Current Io -20 20 mA Relative Humidity RH 5 95 % Reference 1 Note: 1. This is the maximum voltage that can be applied across the differential inputs without damaging the input circuitry. Recommended Operating Conditions Recommended Operating Conditions specify parameters for which the electrical characteristics hold unless otherwise noted. Electrical characteristics are not defined for operation outside the Recommended Operating Conditions, reliability is not implied and damage to the module may occur for such operation over an extended period of time. Parameter Symbol Min Typ Max Units Reference Case Temperature Tc 0 40 70 °C 1 3.3 V Power Supply Voltage Vcc 3.135 3.3 3.465 V Control* Input Voltage High Vih 2 Vcc+0.3 V Control* Input Voltage Low Vil -0.3 0.8 V Two Wire Serial (TWS) Interface Clock Rate 400 kHz Power Supply Noise 50 mVpp Signal Rate per Channel 10.3125 Receiver Differential Data Output Load GBd 100 2 3 ohms * Control signals, LVTTL (3.3 V) compatible Notes: 1. The position of case temperature measurement is shown in Figure 7. 2. 64b/66b coding is assumed 3. Power Supply Noise is defined as the peak-to-peak noise amplitude over the frequency range at the host supply side of the recommended power supply filter with the module and recommended filter in place. Voltage levels including peak-to-peak noise are limited to the recommended operating range of the associated power supply. See Figure 8 for recommended power supply filter. Active Cable-End Electrical Characteristics* The following characteristics are defined over the Recommended Operating Conditions unless otherwise noted. Typical values are for Tc = 40° C, Vcc = 3.3 V Parameter Max Units 10G Active Cable-End Power Consumption 1.5 W 10G Active Cable-End Power Supply Current 475 mA * See Figure 6 for Test Point definitions. 4 Symbols Min Typ Reference Transmitter Electrical Characteristics The following characteristics are defined over the Recommended Operating Conditions unless otherwise noted. Typical values are for Tc = 40° C, Vcc33 = 3.3 V Parameter (From Table 86A-2 of IEEE 802.3ba) Test Point Min Single ended input voltage tolerance [1] TP1a -0.3 AC common mode input voltage tolerance TP1a Differential input return loss Typ Max Units Notes/Conditions 4 V Referred to TP1 signal common 15 mV RMS TP1 See IEEE 802.3ba 86A.4.1.1 dB 10 MHz to 11.1 GHz Differential to common-mode input return loss TP1 10 dB 10 MHz to 11.1 GHz J2 Jitter tolerance TP1a 0.17 UI Defined in 802.3ba spec J9 Jitter tolerance TP1a 0.29 UI Defined in 802.3ba spec Data Dependent Pulse Width Shrinkage (DDPWS) tolerance TP1a 0.07 UI Eye Mask Coordinates: X1, X2 Y1, Y2 TP1a SPECIFICATION VALUES 0.11, 0.31 95, 350 Note: 1. The single ended input voltage tolerance is the allowable range of the instantaneous input signals Differential amplitude (mV) Y2 Y1 0 -Y1 -Y2 0 X1 X2 Time (UI) 1-X2 1-X1 1 Figure 3. Electrical Eye Mask Coordinates at Hit ratio 5 x 10-5 hits per sample 5 UI mV Hit Ratio = 5x10-5 Receiver Electrical Characteristics The following characteristics are defined over the Recommended Operating Conditions unless otherwise noted. Typical values are for Tc = 40° C, Vcc33 = 3.3 V Parameter (From Table 86A-3 of IEEE 802.3ba) Test Point Min Single-ended output voltage tolerance TP4 Typ -0.3 Max Units Notes/Conditions 4 V Referred to signal common 7.5 mV RMS 5 % AC common mode voltage (RMS) TP4 Termination mismatch at 1 MHz TP4 Differential output return loss TP4 See IEEE 802.3ba 86A.4.2.1 dB 10 MHz to 11.1 GHz Common-mode output return loss TP4 See IEEE 802.3ba 86A.4.2.2 dB 10 MHz to 11.1 GHz Output transition time 20% to 80% TP4 28 ps J2 Jitter output TP4 0.41 UI Modified from IEEE 802.3 specification to support BER of 1E-15 J9 Jitter output TP4 0.62 UI Modified from IEEE 802.3 specification to support BER of 1E-15 Eye Mask coordinates: X1, X2 Y1, Y2 TP4 SPECIFICATION VALUES 0.29, 0.5 150, 425 UI mV Hit Ratio = 5x10-5 Differential Amplitude [mV] Y2 Y1 0 -Y1 -Y2 0 X1 X2 1-X1 1.0 Normalized Time [UI] TP 0 QSFP + TX TP 1 TP 1a QSFP + RX Fiber TP 2 TP 3 Electrical Connector ASIC/ SerDes Optical Patch Cord Electrical Connector Figure 4. Rx Electrical Eye Mask Coordinates (TP4) at Hit ratio 5 x 10-5 hits per sample TP 4a TP 4 TP0 : Host ASIC transmitter output at ASIC package contact on the Host board TP1 : Host ASIC transmitter output across the Host Board at the input side of the Host QSFP+ electrical connector TP1a : Host ASIC transmitter output across the Host board at the output side of the Host QSFP+ electrical connector TP2 : QSFP+ transmitter optical output at the end of a 2 m to 5 m patch cord TP3 : QSFP+ receiver optical input at the end of the fiber TP4a : QSFP+ receiver electrical output at the input side of the Host QSFP+ electrical connector TP4 : QSFP+ receiver electrical output at the output side of the Host QSFP+ electrical connector TP5 : Host ASIC receiver input at ASIC package contact on the Host board Figure 5. Test point definitions 6 ASIC/ SerDes TP 5 Regulatory Compliance Table Feature Test Method Performance Electrostatic Discharge (ESD) to the Electrical Contacts JEDEC Human Body Model (HBM) (JESD22-A114-B) High Speed contacts withstand 1 kV; all other contacts withstand 2 kV JEDEC Charge Device Model (CDM) (JESD22-C101D) Active Cable withstands 250 V Electrostatic Discharge (ESD) to Optical Connector GR1089 10 discharges of 8 kV on the electrical faceplate with device inserted into a panel Electrostatic Discharge (ESD) to Optical Connector Variation of EN 61000-4-2 Air discharge of 15 kV (min) to connector without damage Electromagnetic Interference (EMI) FCC Part 15 CENELEC EN55022 (CISPR 22A) VCCI Class 1 Typically passes with 10 dB margin. Actual performance dependent on enclosure design Immunity Variation of EN 61000-4-3 Typically minimum effect from a 10V/m field swept from 80 MHz to 1 GHz applied to the Active Cable-end without a chassis enclosure Laser Eye Safety and Equipment Type Testing EN 60825-1:2007 Pout: EN AEL & US FDA CDRH Class 1M Component Recognition Underwriters Laboratories and Canadian Standards Association Joint Component Recognition for Information Technology Equipment including Electrical Business Equipment RoHS Compliance BS EN 1122:2001 Mtd B by ICP for Cadmium, EPA Method 3051A by ICP for Lead and Mercury, EPA Method 3060A & 7196A by UV/Vis Spectrophotometry for Hexavalent Chromium. EPA Method 3540C/3550B by GC/MS for PPB and PBDE Less than 100 ppm of cadmium, Less than 1000 ppm of lead, mercury, hexavalent chromium, polybrominated biphenyls, and polybrominated biphenyl esters. BS EN method by ICP and EPA methods by ICP, UV/Vis Spectrophotometry and GC/MS. Flammability 7 Module: UL 94V-0 Cable: OFNR, LSZH QSFP+ Pad Layout GND TX1n TX1p GND TX3n TX3p GND LPMode Vcc1 VccTx IntL ModPrsL GND RX4p RX4n GND RX2p RX2n GND Card Edge 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 GND TX2n TX2p GND TX4n TX4p GND ModSelL ResetL VccRx SCL SDA GND RX3p RX3n GND RX1p RX1n GND 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 Bottom Side Viewed from Bottom Top Side Viewed from Top Figure 6. Pad Layout Pin Logic Symbol Description Plug Sequence Notes 1 GND Ground 1 1 2 CML-I Tx2n Transmitter Inverted Data Input 3 3 CML-I Tx2p Transmitter Non-Inverted Data Input 3 4 GND Ground 1 1 5 CML-I Tx4n Transmitter Inverted Data Input 3 6 CML-I Tx4p Transmitter Non-Inverted Data Input 3 7 GND Ground 1 1 8 LVTTL-I ModSelL Module Select 3 9 LVTTL-I ResetL Module Reset 3 10 Vcc Rx +3.3V Power supply receiver 2 2 11 LVCMOS-I/O SCL 2-wire serial interface clock 3 12 LVCMOS-I/O SDA 2-wire serial interface data 3 13 GND Ground 1 1 14 Rx3p Receiver Non-Inverted Data Input 3 15 CML-O Rx3n Receiver Inverted Data Input 3 16 CML-O GND Ground 1 1 17 Rx1p Receiver Non-Inverted Data Input 3 18 CML-O Rx1n Receiver Inverted Data Input 3 19 CML-O GND Ground 1 1 20 GND Ground 1 1 21 CML-O Rx2n Receiver Inverted Data Input 3 22 CML-O Rx2p Receiver Non-Inverted Data Input 3 23 GND Ground 1 1 24 CML-O Rx4n Receiver Inverted Data Input 3 25 CML-O Rx4p Receiver Non-Inverted Data Input 3 26 GND Ground 1 27 LVTTL-O ModPrsL Module Present 3 28 LVTTL-O IntL Interrupt 3 29 Vcc Tx +3.3V Power supply transmitter 2 2 30 Vcc1 +3.3V Power Supply 2 2 31 LVTTL-I LPMode Low Power Mode 3 32 GND Ground 1 1 33 CML-I Tx3p Transmitter Non-Inverted Data Input 3 34 CML-I Tx3n Transmitter Inverted Data Input 3 35 GND Ground 1 1 36 CML-I Tx1p Transmitter Non-Inverted Data Input 3 37 CML-I Tx1n Transmitter Inverted Data Input 3 38 GND Ground 1 1 Notes: 1. GND is the symbol for signal supply (power) common for the QSFP+ AOC. All are common within the QSFP+ AOC and all device voltages are referenced to this potential unless otherwise noted. Connect these directly to the host board signal-common ground plane 2. Vcc Rx, Vcc1 and Vcc Tx are the receiver and transmitter power supplies and shall be applied concurrently. 8 Case Temperature Measurement Point Figure 7. Case Temperature Measurement Point 1 µH Vcc Tx 0.1 µF GND 22 µF Vcc_host = 3.3 Volt 1 µH Vcc Rx 0.1 µF GND 22 µF 1 µH Vcc1 0.1 µF GND 22 µF QSFP+ Module Figure 8. Recommended Host Board Power Supply Filter Vcc 50 ohm 50 ohm TXinp TXinn Figure 9. Input Termination Schematic 9 Input Source Follower 0.1 µF 22 µF Package Outline 97.5 Ø 3.4 R 25 18.35 18 122.3 108.7 71.35 12.4 Figure 10. Mechanical Package Outline, Connector and Bend Radius – Dimensions in Millimeters CABLE LENGTH Part Number Length Cable Length Tolerance AFBR-7QER01Z 1m +20/-0 cm AFBR-7QER02Z 2m +20/-0 cm AFBR-7QER03Z 3m +20/-0 cm AFBR-7QER05Z 5m +20/-0 cm AFBR-7QER07Z 7m +20/-0 cm AFBR-7QER10Z 10 m +20/-0 cm AFBR-7QER15Z 15 m +2%/-0% AFBR-7QER20Z 20 m +2%/-0% Figure 11. Cable Length Definition and Tolerances 10 8.5 53 (8) 1.4 X BASIC 37.00 MAX. Y Ø1.05 ±0.05 12 PLC Ø0.10 M A K BASIC 11.30 MIN. S L 7.60 S 10.60 3.10 9.00 6 PLC L 3.40 1 38 22.15 17.90 REF. 7.20 19.00 16.80 1.10 19 20 K C Cross-hatched area denotes component and trace keep-out (except chassis ground) This area denotes component keep-out (traces allowed) Notes: 1. Datum X & Y are established by the customer’s fiducial 2. Datum A is the top surface of the host board 3. Location of the edge of PCB is application specific 4. Finished hole size All dimensions in mm Figure 12. QSFP+ Host Board Mechanical Footprint 11 7.60 3.10 2.51 1 Ø1.55 ±0.05 Ø0.05 A X K S 5.18 1 3 38 1 L 0.80 7.40 Datum Axis C 0.20 15.02 MAX. 16.80 19.20 MAX. 2 22.15 0.20 7.00 K 3 20 19 0.35 ±0.03 0.05 A L-K C Ø1.55 ±0.05 Ø0.05 A X Y C 1.80 ±0.03 0.05 A C L-K Notes: 1. Centerline of Pad 2. Surface traces permitted within this length 3. Indicated holes are optional All dimensions in mm Figure 13. QSFP+ Host Board Mechanical Footprint Detail 1 21 ±0.1 B 2 43 ±0.3 Bezel R0.3 TYP 10.15 ±0.1 TYP 0.15 ±0.1 (Bottom of cut-out in bezel to top of PC Board) A 20 ±0.1 TYP Notes: 1 Minimum pitch dimension for individual cages. 2 Dimension baseline is datum K or L . 3. Not recommended for PCI applications. All dimensions in mm Figure 14. Host Board Bezel Design 12 2 37 MAX Control Interface & Memory Map ModPrsL The control interface combines dedicated signal lines for ModSelL, LPMode, ResetL, ModPrsL, IntL with two-wire serial (TWS), interface clock (SCL) and data (SDA), signals to provide users functionality over an efficient and easily used interface. The TWS interface is implemented as a slave device and compatible with industry standard twowire serial protocol. It is scaled for 3.3 V LVTTL. Outputs are high-Z in the high state to support busing of these signals. Signal and timing characteristics are further defined in the Control I/O Characteristics section. For more details, see QSFP+ SFF-8436. ModPrsL is pulled up to Vcc_Host on the host board and grounded in the Active Cable-end. The ModPrsL is asserted “Low” when module is inserted into the host connector, and deasserted “High” when the Active Cable-end is physically absent from the host connector. ModSelL The ModSelL is an input signal. When held low by the host, the module responds to 2-wire serial communication commands. The ModSelL allows the use of multiple QSFP+ devices on a single 2-wire interface bus. When the ModSelL is “High”, the module will not respond to or acknowledge any 2-wire interface communication from the host. ModSelL signal input node is biased to the “High” state in the module. In order to avoid conflicts, the host system shall not attempt 2-wire interface communications within the ModSelL de-assert time after any QSFP+ device is deselected. Similarly, the host must wait at least for the period of the ModSelL assert time before communicating with the newly selected device. The assertion and de-assertion periods of different devices may overlap as long as the above timing requirements are met. ResetL The ResetL signal is pulled to Vcc in the QSFP+ Active Optical Cable. A low level on the ResetL signal for longer than the minimum pulse length (t_Reset_init) initiates a complete Active Cable-end reset, returning all user module settings to their default state. Module Reset Assert Time (t_init) starts on the rising edge after the low level on the ResetL pin is released. During the execution of a reset (t_init) the host shall disregard all status bits until the Active cable-end indicates a completion of the reset interrupt. The Active Cable-end indicates this by posting an IntL signal with the Data_Not_Ready bit negated. Note that on power up (including hot insertion) the Active Cable-end will post this completion of reset interrupt without requiring a reset. LPMode Low power mode. When held high by host, the module is held at low power mode. When held low by host, the module operates in the normal mode. For class 1 power level modules (1.5 W), low power mode has no effect. 13 IntL IntL is an output signal. When “Low”, it indicates a possible operational status critical to the host system. The host identifies the source of the interrupt using the 2-wire serial interface. The IntL signal is an open collector output and must be pulled to host supply voltage on the host board. A corresponding soft status IntL signal is also available in the device memory page 0 address 2 bit 1. Soft Status and Control A number of soft status signals and controls are available in each end of the AFBR-7QERxxZ Active Optical Cable and are accessible through the TWS interface. Soft status signal are receiver LOS, Soft controls include transmitter disable (Tx_Dis), receiver squelch disable (Rx_SqDis), and masking of status signal in triggering IntL. All soft status signals and controls are on a per channel basis. All soft control entries are volatile. Receiver LOS The receiver LOS status signal is on page 0 address 3 bits 0-3 for channels 1-4 respectively. Receiver LOS is based on loss of optical input, due to transmitter disable or fiber break. This status register is latched and it is cleared on read. Transmitter Disable The transmitter disable control is on page 0 address 86 bits 0-3 for channels 1-4 respectively. Receiver Squelch Disable The receiver squelch disable control is on page 3 address 240 bits 4-7 for channels 1-4 respectively. AFBR-7QERxxZ Active Optical Cable have receiver output squelch function enabled as default. I/O Timing for Control and Status Functions The following characteristics are defined over the Recommended Operating Conditions unless otherwise noted. Typical values are for Tc = 40° C, Vcc = 3.3 V Parameter Symbol Initialization Time t_init LPMode Assert Time Typ Max Units Reference 150 2000 ms Time from power on, hot plug or rising edge of Reset until the Active Cable-end is fully functional. This time does not apply to non Power level 0 devices in the Low Power state ton_LPMode N.A. ms Always in Power Level 1 Interrupt Assert Time ton_IntL 200 ms Time from occurrence of condition triggering IntL until Vout: IntL = Vol Interrupt De-assert Time Toff_IntL 500 µs Time from clear on read operation of associated flag until Vout: IntL = Voh. This includes deassert times for RX LOS/ flag bits Reset Init Assert Time t_reset_init 2 µs A Reset is generated by a low level longer than the minimum reset pulse time present on the ResetL pin Reset Assert Time t_reset 2000 ms Time from rising edge on the ResetL pin until the Active Cable-end is fully functional Serial Bus Hardware Ready Time t_serial 2000 ms Time from power on until Active Cable-end responds to data transmission over the 2-wire serial bus Monitor Data Ready Time t_data 2000 ms Time from power on to data not ready, bit 0 of Byte 2, deasserted and IntL asserted RX LOS Assert Time ton_los 100 ms Time from RX LOS state to RX LOS bit set and IntL asserted Flag Assert Time ton_Flag 200 ms Time from occurrence of condition triggering flag to associated flag bit set and IntL asserted. Mask Assert Time ton_Mask 100 ms Time from mask bit set until associated IntL assertion is inhibited Mask Deassert Time toff_Mask 100 ms Time from mask bit cleared until associated IntL operation resumes Power Set Assert Time ton_Pdown 100 ms Time from P_Down but set until Active Cable-end power consumption enters power level 1 Power Set Deassert Time toff_Pdown 300 ms Time from P_Down bit cleared until the Active Cable-end is fully functional RX Squelch Assert Time ton_Rxsq 80 µs Time from loss of RX input signal until the squelched output condition is reached RX Squelch Deassert Time toff_Rxsq 80 µs Time from resumption of RX input signals until normal RX output condition is reached TX Disable Assert Time ton_txdis 100 ms Time from TX Disable bit set until optical output falls below 10% of nominal TX Disable Deassert Time toff_txdis 400 ms Time from TX Disable bit cleared until optical output rises above 90% of nominal RX Output Disable Assert Time ton_rxdis 100 ms Time from RX Output Disable bit set until RX output falls below 10% of nominal RX Output Disable Deassert Time toff_rxdis 100 ms Time from RX Output Disable bit cleared until RX output rises above 90% of nominal Squelch Disable Assert Time ton_sqdis 100 ms This applies to RX and TX Squelch and is the time from bit set until squelch functionality is disabled Squelch Disable Deassert Time toff_sqdis 100 ms This applies to RX and TX Squelch and is the time from bit cleared until squelch functionality is enabled 14 Min Memory Map The memory is structured as a single address, multiple page approach. The address is given as A0xh. The structure of the memory is shown in Figure 15. The memory space is arranged into a lower, single page, address space of 128 bytes and multiple upper address space pages of 128 bytes each. This structure permits timely access to addresses in the lower page, e.g., Interrupt Flags and Monitors. Less time critical entries, e.g. serial ID information and threshold settings are available with the Page Select function. For a more detailed description of the QSFP+ memory map see the QSFP+ SFF8436 Specification or the Avago Technologies QSFP+ AOC Memory Map document. 2-wire serial address, 1010000x (A0h)" 0 2 3 21 22 33 34 81 82 85 86 97 98 99 100 106 107 118 119 122 123 126 127 127 Page 00 128 191 192 223 224 255 ID and status (3 Bytes) Interrupt Flags (19 Bytes) Module Monitors (12 Bytes) Channel Monitors (48 Bytes) Reserved (4 Bytes) Control (12 Bytes) Reserved (2 Bytes) Module and Channel Mask Reserved (7 Bytes) (12 Bytes) Password Change (4 Bytes) Entry Area (Optional) (4 Bytes) Password Entry Area (Optional) (1 Bytes) Page Select Byte Page 01 (Optional) Base ID Fields (64 Bytes) Extended ID (32 Bytes) Vendor Speci-c ID (32 Bytes) 128 CC_APPS 128 129 AST Table Length (TL) 129 130 Application Code 131 Entry 0 132 Application Code 133 Entry 1 Page 02 (Optional) (1 Bytes) (1 Bytes) 128 255 User EEPROM Data (2 Bytes) (2 Bytes) other entries 254 255 Application Code Entry TL (2 Bytes) Figure 15. Two-Wire Serial Address A0xh Page Structure For product information and a complete list of distributors, please go to our web site: www.avagotech.com Avago, Avago Technologies, and the A logo are trademarks of Avago Technologies in the United States and other countries. Data subject to change. Copyright © 2005-2015 Avago Technologies. All rights reserved. AV02-3542EN - February 12, 2015 Page 03 (128 Bytes) 128 Module Threshold 175 176 Channel Threshold 223 224 Reserved 225 226 Vendor Speci-c 241 Channel Controls 242 Channel Monitor 253 Masks 254 Reserved 255 (48 Bytes) (48 Bytes) (2 Bytes) (16 Bytes) (12 Bytes) (2 Bytes)