ORDERING INFORMATION
APPLICATIONS
• Front-end cable equalization for digital video systems
• Input equalization for serial digital distribution amplifiers,
GENNUM CORPORATION P.O. Box 489, Stn. A, Burlington, Ontario, Canada L7R 3Y3 tel. +1 (905) 632-2996 fax. +1 (905) 632-5946
FEATURES
• automatic cable equalization
• typically greater than 300 m of high quality cable at
• typically 300 m of high quality cable at 360 Mb/s
• drop in replacement for GS9004C
• capability to drive 50
• fully compatible with SMPTE 259M and operational to
• signal strength indicator
• output 'eye' monitor
• 14 pin SOIC packaging
• single +5 or -5 volt power supply operation
• Pb-free and Green
GS9004DCKB
GS9004DCTB
GS9004DCKBE3
Part Number
Revision Date: July 2004
270 Mb/s
400 Mb/s
routers, production switchers and other receiving
equipment
STRENGTH
INDICATOR
14 pin SOIC Tape
14 pin SOIC
14 pin SOIC
SIGNAL
Package Type
IN+
IN-
6
8
9
loads (to V
Web Site: www.gennum.com E-mail: info@gennum.com
VARIABLE
TT
CONTROL
VOLTAGE
Temperature Range
FILTER
FILTER
)
FUNCTIONAL BLOCK DIAGRAM
0
0
0
o
o
o
C to 70
C to 70
C to 70
o
o
o
C
C
C
DETECTOR
PEAK
Pb-Free and Green
DEVICE DESCRIPTION
The Gennum GS9004D is an improved monolithic automatic
cable equalizer developed for SMPTE/EBU scrambled
NRZI Serial Di g i t a l 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
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
to the signal.
The
(OEM), which allows verification of signal integrity after
equalization, prior to reslicing.
+5 or -5 volt supply, the GS9004D typically draws 52 mA
of current.
CC
RESTORER
No
No
Yes
, indicating the amount of equalization being applied
GS9004D features an OUTPUT 'EYE' MONITOR
DC
Serial Digital Cable Equalizer
GS9004D
COMPARATOR
LOGIC
GENLINX
14
13
7
3 OUTPUT 'EYE'
CAPACITOR
AGC
DATA
DATA
MONITOR
Operating with a single
loads (to V
Document No. 32486 - 0
™
GS9004D
DATA SHEET
TT
). These