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器件描述：HDTV Adaptive Equalizer
器件厂商：GENNUM [Gennum Corporation]
厂商主页：http://www.gennum.com
文件大小：293.84KB
文件页数：12
PDF阅读：GS1504.pdf (点击阅读器件资料)
摘要：
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: March 2000 Document No. 522 - 05 - 02
PRELIMINARY DATA SHEET
G
S
1
504
HD-LINX
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GS1504
HDTV Adaptive Equalizer
FEATURES
? SMPTE 292M compliant
Automatic, adjustment free cable equalization for
1.485Gb/s HDTV signals
Differential serial outputs capable of driving 50? loads
Typically equalizes 100m of Belden 8281 or 150m of
Belden 1694 high quality co-axial cable
Cable Length Indication
Output Mute
Maximum Cable Length Adjust
Low power
Minimal external components
Single +5V or -5V power supply operation
APPLICATIONS
1.485Gb/s HDTV Serial Digital Receiver Interfaces for
Routers, Distribution Amplifiers, Switchers, and other
receiving equipment.
DESCRIPTION
The GS1504 is a high performance cable equalizer
designed to equalize HDTV component signal conforming
to SMPTE 292M. The adaptive cable equalizer is capable of
equalizing up to 100m of Belden 8281 co-axial cable.
The GS1504 features DC restoration for immunity to the DC
content in pathological test patterns. The device also
incorporates a Cable Length Indicator signal that provides
an indication of the amount of cable being equalized.
A voltage programmable mute threshold (MCLADJ) is
included to allow muting of the GS1504 output when a
selected cable length is reached. This feature allows the
GS1504 to distinguish between low amplitude HD SDI
signals and noise at the input of the device. The CD/Mute
pin provides an indication of the GS1504 mute status in
addition to functioning as a mute control input. The output
of the GS1504 may be forced to an active or a mute
condition by applying a voltage to the CD/Mute pin.
The GS1504 is a low power device that operates from a
single 5V power supply. The GS1504 is packaged in a
16 pin narrow SOIC and does not need external pull-up
resistors.
BLOCK DIAGRAM
ORDERING INFORMATION
PART NUMBER PACKAGE TEMPERATURE
GS1504-CKD 16 pin narrow SOIC 0°C to 70°C
GS1504-CTD 16 pin Tape and Reel 0°C to 70°C
CABLE LENGTH INDICATOR/ADJUSTOR
CARRIER DETECT
MUTE
MCLADJ
CLI
CD/MUTE
EQUALIZER
DC
RESTORE
OUTPUT
AGC
SDI
SDI
SDO
SDO
PATENT PENDING
相关器件：GS1504-CTD GS1504-CKD GS1504-CTD GS1504-CKD GS1504
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