*(1/,1;ꢀ™,, GS9024C
Automatic Cable Equalizer
PRELIMINARY DATA SHEET
FEATURES
DESCRIPTION
• automatic cable equalization
• fully compatible with SMPTE 259M
The GS9024C is a high performance automatic cable
equalizer designed for serial digital data rates from 143Mb/s
to 360Mb/s. The GS9024C receives either single-ended or
differential serial data and outputs equalized differential
signals at PECL levels (800mV). The GS9024C 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.
• 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
The GS9024C 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.
• low power: 240mW at 5V
• 14 pin SOIC package
• programmable output data squelch for max cable length
limiting
• carrier detect with programmable threshold level
The GS9024C also features selectable High Z serial data
outputs eliminating the need for input muxing circuitry in
routers. In addition, the GS9024C provides an 'Output Eye
Monitor' (OEM) which allows the verification of signal
integrity after equalization, prior to reslicing.
• 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.
The GS9024C operates from a single +5V or -5V power
supply and consumes only 240mW of power. Packaged in a
small 14 pin SOIC, the GS9024C is ideal for router
applications where high density component placement is
required.
ORDERING INFORMATION
PART NUMBER
GS9024C-CKB
GS9024C-CTB
PACKAGE
14 pin SOIC
TEMPERATURE
0°C to 70°C
14 pin SOIC Tape
0°C to 70°C
+
+
+
SDI
SDI
VARIABLE GAIN
EQ STAGE
SDO
-
-
-
SDO
HIGH Z
EYE
MONITOR
OEM
AUTO EQ
CONTROL
SSI/CD
+
-
AGC CD_ADJ
BLOCK DIAGRAM
Revision Date: October 2001
Document No. 20581 - 0
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