鈩?/div>
II
GS9024
Automatic Cable Equalizer
DATA SHEET
FEATURES
鈥?automatic cable equalization
鈥?fully compatible with SMPTE 259M
鈥?typically equalizes greater than 350m of high quality
cable at 270Mb/s
鈥?signal strength indicator
鈥?output data muting when input data is lost
鈥?output 'eye' monitor (OEM) with large signal amplitude
and power down option
鈥?low power: 240mW at 5V
鈥?14 pin SOIC package
鈥?programmable output data squelch for max cable
length limiting
鈥?carrier detect with programmable threshold level
鈥?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 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.
ORDERING INFORMATION
PART NUMBER
GS9024-CKB
GS9024-CTB
PACKAGE
14 pin SOIC
14 pin SOIC Tape
TEMPERATURE
0擄C to 70擄C
0擄C to 70擄C
GS9024
SDI
+
-
VARIABLE GAIN
EQ STAGE
+
+
-
-
SDO
SDO
HIGH Z
SDI
OEM
EYE
MONITOR
AUTO EQ
CONTROL
SSI/CD
+
AGC
-
CD_ADJ
BLOCK DIAGRAM
Revision Date: November 2000
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
Document No. 521 - 70 - 06
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