document no. 520 - 29 - 7 data sheet genlinx ? GS9007 quad serial digital cable driver device description the genlinx ? GS9007 is a bipolar integrated circuit designed to drive four 75 w co-axial cables with smpte level serial digital video signals at data rates exceeding 400 mb/s. it directly interfaces with other genlinx ? devices and can also be used as a general purpose high speed cable driver. the differential inputs are ac-coupled and internally dc- restored 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. the GS9007 is packaged in an 8 pin soic, and operates from a single +5 or -5 volt supply consuming typically only 250 mw of power. applications 4? sc , 4:2:2 and 360 mb/s serial digital interfaces. features ? two output pairs (four outputs total) meeting smpte 259m ? nominal 550 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 genlinx ? gs9002, gs9004a, gs9005a and gs9015a serial
input serial
input v cc (gnd) input
buffer
& dc
restore rise
time
control v out2 v out2 gnd (v ee ) GS9007 6 7 8 1 2 3 4 5 v out1 v out1 pin connections serial out -1 serial out -1 serial out -2 serial out -2 v cc (ground) ground (v ee ) serial input serial input 1 top view ordering information part number package type temperature range GS9007 - cka 8 pin soic 0 to 70 c revision date: may 1995 gennum corporation p.o. box 489, stn a, burlington, ontario, canada l7r 3y3 tel. (905) 632-2996 fax: (905) 632-2055 japan branch: a-302, miyamae village, 2-10-42 miyamae, suginami-ku, tokyo 168, japan tel. (03) 3247-8838 fax (03) 3247-8839 functional block diagram patent no. 5,426,389.
2 520 - 29 - 7 v cc 400 400 v out v out v cc v cc parameter symbol conditions min typ max units notes supply voltage v s operating range 4.5 5.0 5.5 v power consumption p d 4x150 w loads dc - 250 290 mw supply current i s1 1% accuracy, - 105 110 ma t a = 25 o c i s2 dc no loads, t a = 25 o c - 17.2 22 ma GS9007 cable driver - dc electrical characteristics v s = 5 v, t a = 0 to 70 o c, r l = 150 w to gnd and 143 w ac coupled unless otherwise shown. fig. 1 input circuit (pins 6 and 7) GS9007 cable driver - ac electrical characteristics v s = 5 v, t a = 0 to 70 o c, r l = 150 w to gnd and 143 w ac coupled unless otherwise shown. serial digital inputs - 0 - % see figure 4 serial digital outputs and 80% fig. 2 output circuit (pins 1, 2 and 3, 4) v cc 0.5p serial
inputs 400 v cc v ref1 v ref1 + v ref2 input / output circuits propagation t p - 1 - ns delay output overshoot t r = t f = 600 ps parameter symbol conditions min typ max units notes signal swing v in 700 800 1000 mvp-p rise/fall times t r , t f - - 750 ps measured at 20% and 80% rise/fall times t r , t f 400 550 800 ps measured at 20% jitter t j at 270 mb/s - - 25 ps signal swing v out across 75 w load 720 800 880 mvp-p
3 520 - 29 - 7 7 8 6 GS9007 serial
digital
inputs 1 2 150 +5v + 10 0.1 150 75 75 w coax 68 1.0 1p8 75 75 w coax 68 1.0 1p8 3 4 5 150 150 75 75 w coax 68 1.0 1p8 75 75 w coax 68 1.0 1p8 parameter values/units supply voltage (v s ) 5.5 v input voltage range (any input) v s - 0.5 v power dissipation 300 mw operating temperature range 0 o c t a 70 o c storage temperature range -65 o c t s 150 o c lead temperature (soldering, 10 sec.) 260 o c absolute maximum ratings 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. gennum corporation assumes no responsibility for the use of any circuits described herein and makes no representations that they are free from patent infringement. ? copyright march 1991 gennum corporation. all rights reserved. printed in canada.
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