DATA SHEET

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, M i yamae Village, 2–10–42 Mi yamae, Suginami–ku, Tokyo 168, Japan

tel. (03) 3247-8838

fax (03) 3247-8839

GENLINX

with Four Adjustable Outputs

FEATURES

• two output pairs, adjustable from 0 to 1100 mVp-p

into 75

• 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

GENLINX

GS9005A and GS9015A

DEVICE DESCRIPTION

The

GENLINX

designed to drive four 75

Ω co-axial cables at data rates

exceeding 400 Mb/s.

It directly interfaces with other

GENLINX

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.

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

guaranteed for output levels between 600 mV and

1000 mV.

The gain of the output stages is varied by

adjusting the V

SET

voltage with respect to an internal

bandgap reference voltage V

REF

.

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.

Document No. 520 - 75 - 5

Revision Date: January 1994

FUNCTIONAL BLOCK DIAGRAM

ORDERING INFORMATION

APPLICATIONS

• SMPTE 259M Serial Digital Systems (4:2:2 & 4ƒsc)

• Other Serial Digital Video Interfaces - 360 Mb/s

• General purpose high speed driver applications

PIN CONNECTIONS

NC

NC

OUTPUT 1

OUTPUT 1

OUTPUT 2

NC

INPUT

OUTPUT 2

VSET

INPUT

VEE

VREF

NC

VCC

14

9

8

10

12

13

11

1

4

3

6

5

7

2

GS9009

Part Number

Package Type

Temperature Range

GS9009 - CKB

14 Pin SOIC

0

° to 70°C

GS9009

INPUT

BAND-GAP

REFERENCE

INPUT BUFFER

&

DC RESTORE

INPUT

GAIN

CONTROL

OUTPUT 1

OUTPUT 1

OUTPUT 2

OUTPUT 2

OUTPUT

DRIVER

OUTPUT

DRIVER

Patent No. 5,426,389.