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器件描述：GENLINX-TM GS9004D Serial Digital Cable Equalizer
器件厂商：GENNUM [Gennum Corporation]
厂商主页：http://www.gennum.com
文件大小：66.03KB
文件页数：4
PDF阅读：GS9004D.pdf (点击阅读器件资料)
摘要：
NOT RECOMMENDED
FOR NEW DESIGNS
Part Number Package Type Temperature Range Pb-Free and Green
GS9004DCKB 14 pin SOIC 0
o
C to 70
o
CNo
GS9004DCTB 14 pin SOIC Tape 0
o
C to 70
o
GS9004DCKBE3 14 pin SOIC 0
o
C to 70
o
C Yes
FEATURES
? automatic cable equalization
typically greater than 300 m of high quality cable at
270 Mb/s
typically 300 m of high quality cable at 360 Mb/s
drop in replacement for GS9004C
capability to drive 50 c87 loads (to V
TT
)
fully compatible with SMPTE 259M and operational to
400 Mb/s
signal strength indicator
output 'eye' monitor
14 pin SOIC packaging
single +5 or -5 volt power supply operation
Pb-free and Green
GENLINX
?
GS9004D
Serial Digital Cable Equalizer
FUNCTIONAL BLOCK DIAGRAM
DATA SHEET
DEVICE DESCRIPTION
The Gennum GS9004D is an improved monolithic automatic
cable equalizer developed for SMPTE/EBU scrambled
NRZI Serial Digital Video signals.
While there are no plans to discontinue the GS9004D,
Gennum has developed a successor product with improved
features and performance called the GS9024. The GS9024
is recommended for new designs.
This device features DC restoration to pass the Pathological
Test Signals and fully automatic equalization in order to
meet the SMPTE 259M Serial Interface Standard. The
DATA and DATA outputs typically deliver 800 mV (p-
p) equalized signals into 50 ? loads (to V
TT
). These
signals can be used to feed cable driver circuits for Serial
Distribution Amplifier applications.
This device also incorporates an analog signal strength
indicator (SSI) which provides a 0.5 V to 0 V output relative
to V
CC
, indicating the amount of equalization being applied
to the signal.
The GS9004D features an OUTPUT 'EYE' MONITOR
(OEM), which allows verification of signal integrity after
equalization, prior to reslicing. Operating with a single
+5 or -5 volt supply, the GS9004D typically draws 52 mA
of current.
ORDERING INFORMATION
APPLICATIONS
Front-end cable equalization for digital video systems
Input equalization for serial digital distribution amplifiers,
routers, production switchers and other receiving
equipment
Document No. 32486 - 0
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996 fax. +1 (905) 632-5946
Web Site: www.gennum.com E-mail: info@gennum.com
Revision Date: July 2004
GS9004D
IN+
AGC
CAPACITOR
SIGNAL
STRENGTH
INDICATOR
VOLTAGE
VARIABLE
FILTER
LOGIC
COMPARATOR
FILTER
CONTROL
PEAK
DETECTOR
DC
RESTORER
Σ
DATA
6
8
7
14
13
DATA
9
IN-
3 OUTPUT 'EYE'
MONITOR
相关器件：GS9004DCTB GS9004DCKBE3 GS9004DCKB
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