GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3

Tel. +1 (905) 632-2996

Fax. +1 (905) 632-5946

E-mail: info@gennum.com

www.gennum.com

Revision Date: February 2000

Document No. 521 - 97 - 02

DATA SHEET

FEATURES

• SMPTE 259M compliant

• four isolated outputs (two complimentary pairs),

adjustable from 50mV-1000mV into 75

Ω loads

• operational from 143Mb/s to 540Mb/s and beyond

• nominal 500ps rise/fall times

• precise ±7.5% output amplitudes

• 40% system power reduction over GS9007

•75

Ω on-chip input termination resistors

• input hysteresis

• operational down to 80mV input amplitude

• superior output isolation

• "Bus Through" expansion port for fan out

requirements

APPLICATIONS

4ƒsc, 4:2:2 and 4:4:4:4 serial digital video co-axial

transmission interfaces from 143 to 540Mb/s;

General

purpose cable driving applications (co-axial cable or UTP).

DESCRIPTION

The GS9029 is a second generation bipolar integrated

circuit designed to drive four 75

Ω co-axial cables.

The GS9029 features two pairs of complementary outputs

whose amplitude is controlled within ±7.5%. The output

signal levels are also adjustable from 50mVp-p up to

1000mVp-p

with

little

change

in

other

performance

parameters. The amplitude of the output stage is varied by

mode outputs ensure superior output return loss and

minimal over shoot. The rise/fall time circuitry allows wide

range

operation

and

provides

symmetrical

balanced

outputs to reject power supply noise. In addition high output

isolation ensures that the cable driver outputs are not

affected by the performance or status of other outputs.

Operational with input amplitudes as low as 80mV, the

GS9029 provides a robust serial interface.

The GS9029 is packaged in a 16 pin narrow SOIC and

operates from a single +5 or -5 volt supply. Typical system

power consumption is 320mW which is 40% less than the

GS9007.

BLOCK DIAGRAM

ORDERING INFORMATION

PART NUMBER

PACKAGE

TEMPERATURE

GS9029-CKD

16 pin SOIC Narrow

0°C to 70°C

GS9029-CTD

16 pin SOIC Tap

0°C to 70°C

SDI

75

75

BANDGAP REFERENCE & BIASING CIRCUIT

SDI

SDI/T

SDI/T

SDO0

SDO0

SDO1

SDO1

INPUT

DIFFERENTIAL

PAIR WITH

HYSTERESIS

OUTPUT STAGE &

RISE/FALL TIME

CONTROL CIRCUIT

Serial Digital Video Cable Driver