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GS9024 GENLINX™

Automatic Cable Equalizer

GS9024 Data Sheet

521-70-10

February 2005

1 of 16

Features

•

automatic cable equalization

•

fully compatible with SMPTE 259M

•

typically equalizes greater than 350m of high

quality cable at 270Mb/s

•

signal strength indicator

•

output data muting when input data is lost

•

output 'eye' monitor (OEM) with large signal

amplitude and power down option

•

low power: 240mW at 5V

•

14 pin SOIC package

•

programmable output data squelch for max cable

length limiting

•

carrier detect with programmable threshold level

•

serial data output "High Z" select to allow muxing of

EQ inputs

•

Pb-free and Green

Applications

Front-end cable equalization for digital video systems;

Input equalization for serial digital distribution

amplifiers, routers, production switchers and other

receiving equipment.

Description

The GS9024 is a high performance automatic cable

equalizer designed for serial digital data rates from

143Mb/s to 540Mb/s. The GS9024 receives either

single-ended or differential serial data and outputs

equalized differential signals at PECL levels (800mV).

The GS9024 provides up to 40dB of gain at 200MHz

which will typically result in equalization of greater than

350m at 270Mb/s of Belden 8281 cable.

The GS9024 incorporates an analog signal strength

indicator/carrier detect (SSI/CD) output indicating both

the presence of a carrier and the amount of equalization

applied to the signal. Optional external resistors allow

the carrier detect threshold level to be customized to the

user's requirement.

The GS9024 also features selectable High Z serial data

outputs eliminating the need for input muxing circuitry in

routers. In addition, the GS9024 provides an 'Output

Eye Monitor' (OEM) which allows the verification of

signal integrity after equalization, prior to reslicing.

The GS9024 operates from a single +5V or -5V power

supply and consumes only 240mW of power. Packaged

in a small 14 pin SOIC, the GS9024 is ideal for router

applications where high density component placement

is required.

Block diagram

SDI

SDI

OEM

AGC

CD_ADJ

+

-

+

-

+

-

+

-

HIGH Z

SDO

SDO

SSI/CD

VARIABLE GAIN

EQ STAGE

AUTO EQ

CONTROL

EYE

MONITOR