GS9068A

GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Features GS1528A • • • • • • • • SMPTE 292M, SMPTE 344M and SMPTE 259M compliant Dual coaxial cable driving outputs with selectable slew rate 50Ω differential PECL input Pb-free and RoHS compliant Pin compatible with GS9068A HD-LINX II SD SDI cable driver Seamless interface to other HD-LINX II family products Single 3.3V power supply operation Operating temperature range: 0°C to 70°C Applications GS1528A • SMPTE 292M, SMPTE 344M and SMPTE 259M Coaxial Cable Serial Digital Interfaces GS9068A • SMPTE 259M and SMPTE 344M Coaxial Cable Serial Digital Interfaces Description The GS1528A/9068A is a second generation, high speed BiCMOS integrated circuit designed to drive one or two 75W coaxial cables. The GS1528A may drive data rates up to 1.485Gb/s and provides two selectable slew rates in order to achieve compliance to SMPTE 259M, SMPTE 344M and SMPTE 292M. The GS9068A may drive data rates up to 540Mb/s and will achieve compliance to SMPTE 259M and SMPTE 344M. The GS1528A/9068A accepts a LVPECL level differential input that may be AC coupled. External biasing resistors at the inputs are not required. Power consumption is typically 168mW using a 3.3V power supply. The GS1528A/9068A is Pb-free, and the encapsulation compound does not contain halogenated flame retardant. This component and all homogeneous sub components are RoHS compliant. GS9068A • • • • • • • • SMPTE 259M and SMPTE 344M compliant Dual coaxial cable driving outputs 50W differential PECL input Pb-free and RoHS compliant Pin compatible with GS1528A HD-LINX II multi-rate SDI dual slew-rate cable driver Seamless interface to other HD-LINX II family products Single 3.3V power supply operation Operating temperature range: 0°C to 70°C Bandgap Reference & Biasing Circuit RSET Bandgap Reference & Biasing Circuit RSET SDI SDI Input Differential Pair Output Stage & Control SDO SDO SDI SDI Input Differential Pair Output Stage & Control SDO SDO GS1528A SD/HD GS9068A Figure A: GS1528A (left) and GS9068A (right) Functional Block Diagrams GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 www.gennum.com 1 of 18 Proprietary & Confidential Revision History Version 6 5 4 3 2 ECR 154747 153754 139112 137886 137403 PCN – – 38124 – – Date August 2010 November 2009 January 2006 September 2005 July 2005 Changes and/or Modifications Correction to Package Dimensions and Ordering Information. Updated to latest Gennum template. Corrected Input Differential Swing to 2200mV. Corrected process to BiCMOS. Updated to current document template to remove “Proprietary and Confidential” footer. Re-ordered solder reflow profiles to show preference for Pb-free profile. Clarified naming of standard Pb solder reflow profile. Added packaging data section. Updated document to reflect the RoHS compliance of both the GS1528A and GS9068A. Modified Table 2-3. Added reflow profiles. Upgraded from a preliminary data sheet to a data sheet. New document. 1 133654 – June 2004 0 132954 – February 2004 GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 2 of 18 Proprietary & Confidential Contents Features.................................................................................................................................................................1 Applications.........................................................................................................................................................1 Description...........................................................................................................................................................1 Revision History .................................................................................................................................................2 1. Pin Out...............................................................................................................................................................4 1.1 GS1528A Pin Assignment ..............................................................................................................4 1.2 GS9068A Pin Assignment ..............................................................................................................4 1.3 GS1528A/GS9068A Pin Descriptions ........................................................................................4 2. Electrical Characteristics ............................................................................................................................5 2.1 Absolute Maximum Ratings ..........................................................................................................5 2.2 DC Electrical Characteristics ........................................................................................................5 2.3 AC Electrical Characteristics ........................................................................................................6 3. Solder Reflow Profile....................................................................................................................................8 4. Input / Output Circuits ................................................................................................................................9 5. Detailed Description.................................................................................................................................. 10 5.1 Input Interfacing ............................................................................................................................ 10 5.2 Output Interfacing ........................................................................................................................ 10 5.3 Output Return Loss Measurement ........................................................................................... 12 5.4 Output Amplitude Adjustment ................................................................................................. 12 6. Application Information .......................................................................................................................... 14 6.1 PCB Layout ....................................................................................................................................... 14 6.2 Typical Application Circuits ...................................................................................................... 14 7. Package & Ordering Information .......................................................................................................... 16 7.1 Package Dimensions ..................................................................................................................... 16 7.2 Packaging Data ............................................................................................................................... 16 7.3 Ordering Information ................................................................................................................... 17 GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 3 of 18 Proprietary & Confidential 1. Pin Out 1.1 GS1528A Pin Assignment SDI SDI VEE RSET 1 2 3 4 GS1528A 8-pin SOIC (top view) 8 7 6 5 SDO SDO SD/HD VCC Figure 1-1: 8 Pin SOIC 1.2 GS9068A Pin Assignment SDI SDI VCC RSET 1 2 3 4 GS9068A 8-pin SOIC (top view) 8 7 6 5 SDO SDO NC VCC Figure 1-2: 8 Pin SOIC 1.3 GS1528A/GS9068A Pin Descriptions Table 1-1: Pin Descriptions Pin Number 1,2 3 4 5 6 Name SDI, SDI VEE RSET VCC SD/HD Timing Analog – Analog – Non Synchronous Type Input Power Input Power Input Description Serial digital differential input. Most negative power supply connection. Connect to GND. External output amplitude control resistor. Most positive power supply connection. Connect to +3.3V. GS1528A: Output slew rate control. When set HIGH, the output will meet SMPTE 259M rise/fall time specifications. When set LOW, the serial outputs will meet SMPTE 292M rise/fall time specifications. GS9068A: No connect. Not connected internally. Serial digital differential output. NC 7, 8 SDO, SDO – Analog – Output GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 4 of 18 Proprietary & Confidential 2. Electrical Characteristics 2.1 Absolute Maximum Ratings Table 2-1 lists the absolute maximum ratings for the GS1528A/GS9068A. Conditions exceeding the limits listed may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those listed in the operational sections of this specification is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. Table 2-1: Absolute Maximum Ratings Parameter Supply Voltage Input ESD Voltage Storage Temperature Range Input Voltage Range (any input) Operating Temperature Range Solder Reflow Temperature Power Dissipation Value -0.5V to 3.6 VDC 2kV -50°C < Ts < 125°C -0.3 to (VCC +0.3)V 0°C to 70°C 260°C 300mW 2.2 DC Electrical Characteristics Table 2-2 shows the DC electrical characteristics of the GS1528A and the GS9068A where conditions are VDD = 3.3V, TA = 0°C to 70°C, unless otherwise specified. Table 2-2: DC Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units Notes Test Levels 3 5 1 6 6 Supply Voltage Power Consumption Supply Current Output Voltage Input Voltage VCC PD Is VCMOUT VCMIN – TA = 25°C TA = 25°C Common mode Common mode 3.135 – – – 1.6 + ΔVSDI/2 3.3 168 51 VCC - VOUT – 3.465 – 64 – VCC ΔVSDI/2 V mW mA V V ±5% – – – – GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 5 of 18 Proprietary & Confidential Table 2-2: DC Electrical Characteristics (Continued) Parameter Symbol Conditions Min Typ Max Units Notes Test Levels 7 7 SD/HD Input VIH VIL – – 2.4 – – – NOTES: – 0.8 V V 1 1 TEST LEVELS 1. Production test at room temperature and nominal supply voltage with guard bands for supply and temperature ranges. 2. Production test at room temperature and nominal supply voltage with guard bands 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. 1. This parameter applies only to the GS1528A. 2.3 AC Electrical Characteristics Table 2-3 shows the AC electrical characteristics of the GS1528A and the GS9068A where conditions are VDD = 3.3V, TA = 0°C to 70°C, unless otherwise specified. Table 2-3: AC Electrical Characteristics Parameter Symbol Conditions Min Typ Max Units Notes Test Levels 1 1 1 4 1 1 1 1 1 1 7 1 Serial input data rate Additive jitter DRSDO DRSDO – – – GS1528A GS9068A 1.485Gb/s 270Mb/s GS9068A SD/HD=0 SD/HD=1 GS9068A – – – – – – 400 400 – – – – – – 22 16 16 – – – – – – – 1.485 540 – – – 220 800 800 30 30 100 100 Gb/s Mb/s psp-p psp-p psp-p ps ps ps ps ps ps ps 1 – 2 – – 2, 3 2, 3 3 – 2 2 – Rise/Fall time tr, tf tr, tf tr, tf Mismatch in rise/fall time Duty cycle distortion tr, – – – tf – SD/HD=0 SD/HD=1 GS9068A GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 6 of 18 Proprietary & Confidential Table 2-3: AC Electrical Characteristics (Continued) Parameter Symbol Conditions Min Typ Max Units Notes Test Levels 7 1 1 7 1 Overshoot – – – SD/HD=0 SD/HD=1 GS9068A – Single Ended into 75Ω external load RSET = 750Ω – – – 15 750 – – – – 800 10 8 8 – 850 % % % dB mVp-p 2 2 – – – Output Return Loss Output Voltage Swing ORL VOUT Input Voltage Swing TEST LEVELS VSDI Differential 300 – NOTES: 2000 mVp-p – 7 1. Production test at room temperature and nominal supply voltage with guard bands for supply and temperature ranges. 2. Production test at room temperature and nominal supply voltage with guard bands 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. 1. The input coupling capacitor must be set accordingly for lower data rates. 2. This parameter applies only to the GS1528A. 3. Rise/Fall time measured between 20% and 80%. GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 7 of 18 Proprietary & Confidential 3. Solder Reflow Profile The maximum Pb-free reflow profile is shown in Figure 3-1. Temperature 60-150 sec. 20-40 sec. 260°C 250°C 3 °C/sec max 217°C 6°C/sec max 200°C 150°C 25°C Time 60-180 sec. max 8 min. max Figure 3-1: Maximum Pb-free Solder Reflow Profile GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 8 of 18 Proprietary & Confidential 4. Input / Output Circuits VCC SDI SDI VCC 5k 10k 10k 10k Figure 4-1: Differential Input Stage (SDI/SDI) VCC SDO SDO IREF Figure 4-2: Differential Output Stage (SDO/SDO) IREF derived using RSET VCC SD/HD On-chip Reference Figure 4-3: Slew Rate Select Input Stage (GS1528A only) GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 9 of 18 Proprietary & Confidential 5. Detailed Description 5.1 Input Interfacing SDI/SDI are high impedance differential inputs. The equivalent input circuit is shown in Figure 4-1. Several conditions must be observed when interfacing to these inputs: • • • The differential input signal amplitude must be between 300 and 2000mVp-p. The common mode voltage range must be as specified in Table 2.2. For input trace lengths longer than approximately 1cm, the inputs should be terminated as shown in the Typical Application Circuit. The GS1528A/9068A inputs are self-biased, allowing for simple AC coupling to the device. For serial digital video, a minimum capacitor value of 4.7μF should be used to allow coupling of pathological test signals. A tantalum capacitor is recommended. SD/HD Input Pin (GS1528A only): The GS1528A SDO rise and fall times can be set to comply with both SMPTE 259M/344M and SMPTE 292M. For all SMPTE 259M standards, or any data rate that requires longer rise and fall time characteristics, the SD/HD pin must be set HIGH by the application layer. For SMPTE 292M standards and signals which require faster rise and fall times, this pin should be set LOW. 5.2 Output Interfacing The GS1528A/9068A outputs are current mode, and will drive 800mV into a 75Ω load. These outputs are protected from accidental static damage with internal static protection diodes. The SMPTE 292M, SMPTE 344M and SMPTE 259M standards require that the output of a cable driver have a source impedance of 75Ω and a return loss of at least 15dB between 5MHz and 1.485GHz. In order for an SDI output circuit using the GS1528A/9068A to meet this specification, the output application circuit shown in Typical Application Circuits on page 14 is recommended. The value of LCOMP will vary depending on the PCB layout, with a typical value of 5.6nH. A 4.7μF capacitor is used for AC-coupling the output of the device. This value is chosen to ensure that pathological signals can be coupled without a significant DC component occurring. Please see Application Information on page 14 for more details. GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 10 of 18 Proprietary & Confidential Tek Stopped: 8110 Acquisitions Figure 5-1: Output signal for 270Mb/s input Tek Running: Normal Figure 5-2: Output signal for 1.485Gb/s input (GS1528A only) The output protection diodes act as a varactor (voltage controlled capacitor) as shown in Figure 5-3. Therefore, when measuring return loss at the GS1528A/9068A output, it is necessary to take the measurement for both a logic high and a logic low output condition. Consequently, the output capacitance of the device is dependent on the logic state of the output. GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 11 of 18 Proprietary & Confidential GS1528A SDO SDO Figure 5-3: Static Protection Diodes 5.3 Output Return Loss Measurement To perform a practical return loss measurement, it is necessary to force the GS1528A/9068A output to a DC high or low condition. The actual measured return loss will be based on the outputs being static at VCC or VCC-1.6V. Under normal operating conditions the outputs of the device swing between VCC-0.4V and VCC-1.2V, so the measured value of return loss will not represent the actual operating return loss. A simple method of calculating the values of actual operating return loss is to interpolate the two return loss measurements. In this way, the values of return loss are estimated at VCC-0.4V and VCC-1.2V based on the measurements at VCC and VCC-1.6V. The two values of return loss (high and low) will typically differ by several decibels. If the measured return loss is RH for logic high and RL for logic low, then the two values can be interpolated as follows: RIH = RH- (RH-RL)/4 and RIL = RL+(RH-RL)/4 Where RIH is the interpolated logic high value and RIL is the interpolated logic low value. For example: if RH = -18dB and RL = -14dB, then the interpolated values are RIH = -17dB and RIL = -15dB. 5.4 Output Amplitude Adjustment The output amplitude of the GS1528A/9068A can be adjusted by changing the value of the RSET resistor as shown in Table 5-1. For an 800mVp-p output with a nominal ±7% tolerance, a value of 750Ω is required. A ±1% SMT resistor should be used. The RSET resistor is part of the high speed output circuit of the GS1528A/9068A. The resistor should be placed as close as possible to the RSET pin. In addition, the PCB capacitance should be minimized at this node by removing the PCB groundplane beneath the RSET resistor and the RSET pin. GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 12 of 18 Proprietary & Confidential Table 5-1: RSET vs VOD RSET Resistance (Ω) 995 824 750 680 573 Output Swing (mVp-p) 608 734 800 884 1040 NOTE: For reliable operation of the GS1528A/9068A over the full temperature range, do not use an RSET value below 573Ω. GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 13 of 18 Proprietary & Confidential 6. Application Information 6.1 PCB Layout Special attention must be paid to component layout when designing serial digital interfaces for HDTV. An FR-4 dielectric can be used, however, controlled-impedance transmission lines are required for PCB traces longer than approximately 1cm. Note the following PCB artwork features used to optimize performance: • • • • The PCB trace width for HD rate signals is closely matched to SMT component width to minimize reflections due to changes in trace impedance The PCB groundplane is removed under the GS1528A/9068A output components to minimize parasitic capacitance The PCB ground plane is removed under the GS1528A/9068A RSET pin and resistor to minimize parasitic capacitance Input and output BNC connectors are surface-mounted in-line to eliminate a transmission line stub caused by a BNC mounting via high-speed traces, which are curved to minimize impedance variations due to change of PCB trace width 6.2 Typical Application Circuits * 5.6n 75 49.9 DIFFERENTIAL DATA INPUT 10n 49.9 1 2 3 GS1528A SDI SDI VEE RSET BNC 4u7 10n 4u7 SDO SDO SD/HD VCC 8 7 6 75 75 75 * 5.6n VCC BNC 4u7 4u7 VCC 4 5 VCC 750 10n * TYPICAL VALUE VARIES WITH LAYOUT SD/HD NOTE: All resistors in Ohms, capacitors in Farads, and inductors in Henrys, unless otherwise noted. Figure 6-1: GS1528A Typical Application Circuit GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 14 of 18 Proprietary & Confidential 4u7 49.9 DIFFERENTIAL DATA INPUT 10n 49.9 1 2 3 SDI SDI VEE * 5.6n 75 GS9068A SDO SDO NC RSET VCC BNC 4u7 10n 8 7 6 75 75 75 * 5.6n VCC BNC 4u7 4u7 VCC 4 5 VCC 750 NOTE: All resistors in Ohms, capacitors in Farads, and inductors in Henrys, unless otherwise noted. 10n * TYPICAL VALUE VARIES WITH LAYOUT Figure 6-2: GS9068A Typical Application Circuit GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 15 of 18 Proprietary & Confidential 7. Package & Ordering Information 7.1 Package Dimensions SYMBOL D X 8 SOIC Min. 0.054 0.004 0.014 0.189 0.150 Max. 0.068 0.0098 0.019 A E q2 e B DETAIL “A” 0.010 Gauge Plane Seating Plane A1 B D E H e C L X q1 q2 Pin 1 ID Mark L 0.015 ±0.004 x 45° DETAIL “A” 0.196 0.157 0.244 0.229 0.050 BSC 0.0075 0.016 0.0098 0.034 0.0215 REF 0° 8° 7° BSC C A A1 q1 NOTES: 1. All dimensions in inches unless otherwise stated. 2. Lead coplanarity should be 0 to 0.004” max. 3. Package surface finishing: VDI 24~27 (dual). Package surface finishing: VDI 13~15 (16L SOIC[NB] matrix). 4. All dimensions exclude mold flashes. 5. The lead width (B) to be determined at 0.0075” from the lead tip. 7.2 Packaging Data Table 7-1: Packaging Data Parameter Package Type Moisture Sensitivity Level Junction to Case Thermal Resistance, θj-c Junction to Air Thermal Resistance, θj-a (at zero airflow) Pb-free and RoHS Compliant Value 8-pin SOIC 2 72°C/W 116°C/W Yes GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 16 of 18 Proprietary & Confidential 7.3 Ordering Information Table 7-2: Ordering Information Product GS1528A GS1528A GS1528A GS9068A GS9068A Part Number GS1528ACKAE3 GS1528ACTAE3 GS1528ACTAE3D GS9068ACKAE3 GS9068ACTAE3 Package 8-pin SOIC 8-pin SOIC, 250pc tape and reel 8-pin SOIC, 500pc tape and reel 8-pin SOIC 8-pin SOIC, 250pc tape and reel Temperature Range 0°C to 70°C 0°C to 70°C 0°C to 70°C 0°C to 70°C 0°C to 70°C GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 17 of 18 Proprietary & Confidential DOCUMENT IDENTIFICATION CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION DATA SHEET The product is in production. Gennum reserves the right to make changes to the product at any time without notice to improve reliability, function or design, in order to provide the best product possible. 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Sinyi District, Taipei City 11502 Taiwan R.O.C. Phone: (886) 2-8732-8879 Fax: (886) 2-8732-8870 E-mail: gennum-taiwan@gennum.com Gennum Corporation assumes no liability for any errors or omissions in this document, or for the use of the circuits or devices described herein. The sale of the circuit or device described herein does not imply any patent license, and Gennum makes no representation that the circuit or device is free from patent infringement. All other trademarks mentioned are the properties of their respective owners. GENNUM and the Gennum logo are registered trademarks of Gennum Corporation. © Copyright 2004 Gennum Corporation. All rights reserved. www.gennum.com GS1528A/GS9068A HD-LINX® II Multi-Rate Dual Slew-Rate Cable Driver Data Sheet 30953 - 6 August 2010 18 of 18 18 Proprietary & Confidential