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: November 2000
Document No. 521 - 70 - 06
DATA SHEET
G
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
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 143
Mb/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
ORDERING INFORMATION
PART NUMBER
PACKAGE
TEMPERATURE
GS9024-CKB
14 pin SOIC
0°C to 70°C
GS9024-CTB
14 pin SOIC Tape
0°C to 70°C
SDI
SDI
OEM
AGC CD_ADJ
+
-
+
+
-
-
+ -
HIGH Z
SDO
SDO
SSI/CD
VARIABLE GAIN
EQ STAGE
AUTO EQ
CONTROL
EYE
MONITOR
GENLINX
II
GS9024
Automatic Cable Equalizer