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GENLINXTM GS9009 Cable Driver with Four Adjustable Outputs DATA SHEET FEATURES * two output pairs, adjustable from 0 to 1100 mVp-p into 75 loads * nominal 600 ps rise and fall times * accepts SMPTE and standard ECL input levels * operates from a single +5 or -5 volt supply * on-chip DC restoration for low jitter * 250 mW power dissipation * interfaces with GENLINXTM GS9002, GS9004A, GS9005A and GS9015A APPLICATIONS * SMPTE 259M Serial Digital Systems (4:2:2 & 4sc) * Other Serial Digital Video Interfaces - 360 Mb/s * General purpose high speed driver applications PIN CONNECTIONS The differential inputs are AC-coupled and internally DCrestored which allows correct passage of pathological check codes associated with the serial digital standards. Even though the inputs are AC coupled, static protection diodes at each input restrict the DC differential so that if the driving source uses the opposite polarity power supply, external DC blocking capacitors must be used. Correctly terminated output signal levels are adjustable from as low as 0 mV to as high as 1100 mV with little change in other performance parameters. Performance is g u a r a n t e e d f o r o u t p u t l e v e l s b e t w e e n 600 m V a n d 1000 mV. The gain of the output stages is varied by adjusting the VSET voltage with respect to an internal bandgap reference voltage VREF. Pinout is compatible with the GS9007 by interchanging pins 3,4,5,6,9,10,11,12 on the GS9009 with pins 1,2,3,4,5,6,7,8 on the GS9007. In this way, a layout can be made for either device depending on whether adjustability is desired or not. The GS9009 is packaged in a 14 pin SOIC, and operates from a single +5 or -5 volt supply consuming typically only 250 mW of power. FUNCTIONAL BLOCK DIAGRAM DEVICE DESCRIPTION The GENLINXTM GS9009 is a bipolar integrated circuit designed to drive four 75 co-axial cables at data rates exceeding 400 Mb/s. It directly interfaces with other GENLINXTM devices and can also be used as a general purpose high speed cable driver. NC NC OUTPUT 1 OUTPUT 1 OUTPUT 2 OUTPUT 2 VSET 1 2 3 14 13 12 NC NC VCC INPUT INPUT VEE VREF GS9009 4 5 6 7 11 10 9 8 GS9009 VSET GAIN CONTROL VCC (GND) ORDERING INFORMATION Part Number GS9009 - CKB Package Type 14 Pin SOIC Temperature Range INPUT OUTPUT DRIVER INPUT BUFFER & DC RESTORE OUTPUT 2 OUTPUT 2 OUTPUT 1 OUTPUT 1 0 to 70C INPUT OUTPUT DRIVER VREF BAND-GAP REFERENCE GND (VEE) Patent No. 5,426,389. Revision Date: January 1994 Document No. 520 - 75 - 5 GENNUM CORPORATION P.O. Box 489, Stn A, Burlington, Ontario, Canada L7R 3Y3 Japan Branch: A-302, M i yamae Village, 2-10-42 Mi yamae, Suginami-ku, Tokyo 168, Japan tel. (905) 632-2996 fax: (905) 632-2055 tel. (03) 3247-8838 fax (03) 3247-8839 ABSOLUTE MAXIMUM RATINGS PARAMETER Supply Voltage (VS) Input Voltage Range (any input) Power Dissipation Operating Temperature Range Storage Temperature Range Lead Temperature (soldering, 10 sec) VALUE 5.5 V VS -0.5 V 300 mW 0C T A 70C -65C TS 150C 260C GS9009 CABLE DRIVER - DC ELECTRICAL CHARACTERISTICS Conditions: V S = 5V, T A = 0C to 70C, R L= 150 to GND and 144 AC coupled unless otherwise shown PARAMETER Supply Voltage Power Consumption Supply Current SYMBOL VS PD I S1 CONDITIONS MIN 4.5 TYP 5.0 250 105 MAX 5.5 290 110 UNITS volts mW mA NOTES 4 x150 Loads DC 1% Accuracy, TA= 25 C VSET = (0.667) V REF o - Supply Current Reference Voltage IS2 VREF DC No Loads, TA= 25oC 10 k to ground - 16 1.2 20 - mA volts GS9009 CABLE DRIVER - AC ELECTRICAL CHARACTERISTICS Conditions: VS = 5V, TA = 0C to 70C, R L = 150 to GND and 144 AC coupled unless otherwise shown PARAMETER Input Signal Amplitude Input Signal Rise/Fall Times Output Amplitudes across 75 Load (See Note 1) SYMBOL VIN CONDITIONS MIN 700 - TYP 800 600 800 1000 25 -12 -45 630 575 530 0 1 MAX 1000 750 660 880 1100 100 80 80 800 800 800 25 - UNITS mVp-p ps mVp-p mVp-p mVp-p ppm/ C ppm/ oC ppm/ oC ps ps ps % ps ns o NOTES tR,tF V SET = (0.5) VREF VOUT V SET = (0.667) V REF V SET = (0.833) V REF 540 720 900 400 400 400 - Note 1 & 2 Note 1 & 2 Note 1 & 2 Output Amplitude Temperature Coefficient (See Note 2) V SET = (0.5) VREF TC V SET = (0.667) V REF V SET = (0.833) V REF V SET = (0.5) VREF Output Rise/Fall Times (20% to 80%) tR,tF V SET = (0.667) V REF V SET = (0.833) V REF Output Overshoot Jitter Propagation Delay t R= tF = 600 ps See Figure 3 tJ tP at 270 Mb/s NOTE 1. VOUT is measured across a correctly terminated load, back matched to the device. The peak to peak voltage of the device itself is 2 x VOUT . 2. VOUT is proportional to V SET and V SET may be an external low impedance, high stability supply. In this case the amplitude temperature coefficient will not be guaranteed. 520 - 75 - 5 2 INPUT / OUTPUT CIRCUITS VCC VCC VCC VCC 400 400 VOUT SERIAL INPUTS VREF1 0.5p 400 VREF1 + VREF2 VCC VOUT Fig. 1 Input Circuit (Pins 11 and 12) Fig. 2 Output Circuit (Pins 3, 4 and 5, 6) +5V OUTPUT LEVEL ADJUST 10k 1.8p 8 9 INPUT SIGNAL INPUT SIGNAL 10 11 12 13 + 10 0.1 14 7 6 1.0 5 1.0 68 1.0 3 2 68 1 1 2 3 4 1.8p OUTPUT -1 (75) 1.8p OUTPUT -1 (75) 0.1 1.8p 1.0 68 OUTPUT -2 (75) 68 OUTPUT -2 (75) GS9009 4 Resistors marked 1, 2, 3, and 4 are 150 each. All resistors in ohms, all capacitors in microfarads unless otherwise stated. Fig. 3 Typical Application Circuit -5V +5V 11 ECL DRIVER 0.1F 10 0.1F GS9009 -2V All resistors in ohms, all capacitors in microfarads unless otherwise stated. Fig. 4 Split Supply Interfacing 3 520 - 75 - 5 DOCUMENT IDENTIFICATION PRODUCT PROPOSAL This data has been compiled for market investigation purposes only, and does not constitute an offer for sale. ADVANCE INFORMATION NOTE This product is in development phase and specifications are subject to change without notice. Gennum reserves the right to remove the product at any time. Listing the product does not constitute an offer for sale. PRELIMINARY DATA SHEET The product is in a preproduction phase and specifications are subject to change without notice. DATA SHEET The product is in production. Gennum reserves the right to make changes at any time to improve reliability, function or design, in order to provide the best product possible. REVISION NOTES Updated to Data Sheet, Figure 4 added CAUTION ELECTROSTATIC SENSITIVE DEVICES DO NOT OPEN PACKAGES OR HANDLE EXCEPT AT A STATIC-FREE WORKSTATION Gennum Corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. (c) Copyright January 1993 Gennum Corporation. All rights reserved. Printed in Canada. 520 - 75 - 5 4 |
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