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GS9074A Datasheet دیتاشیت PDF دانلود

دیتاشیت - Gennum - Adaptive Cable Equalizer

شماره قطعه GS9074A
شرح مفصل Adaptive Cable Equalizer
تولید کننده Gennum 
آرم Gennum 


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GS9074A شرح
GS9074A HD-LINX® II Adaptive Cable Equalizer
Features
• SMPTE 259M compliant
• Automatic cable equalization
• Multi-standard operation from 143Mb/s to 360Mb/s
• Supports DVB-ASI at 270Mb/s
• Small footprint (4mm x 4mm)
• Pb-free and RoHS compliant
• Manual bypass (useful for low data rates with slow
rise/fall times)
• Performance optimized for 270Mb/s
• Typical maximum equalized length of Belden 1694A
cable: 350m at 270Mb/s
• 50Ωdifferential output (with internal 50Ωpull-ups)
• Manual output mute or programmable mute based on
max cable length adjust
• Single 3.3V power supply operation
• Operating temperature range: 0°C to +70°C
Applications
• SMPTE 259M Coaxial Cable Serial Digital Interfaces
Description
The GS9074A is a second-generation high speed BiCMOS
integrated circuit designed to equalize and restore signals
received over 75Ωco-axial cable.
The GS9074A is designed to support SMPTE 259M, and is
optimized for performance at 270Mb/s.
The GS9074A features DC restoration to compensate for
the DC content of SMPTE pathological test patterns.
A voltage programmable mute threshold (MCLADJ) is
included to allow muting of the GS9074A output when an
approximate selected cable length is reached for SMPTE
259M signals. This feature allows the GS9074A to
distinguish between low amplitude SD-SDI signals and
noise at the input of the device. The serial digital outputs of
the GS9074A may be forced to a mute state by applying a
voltage to the MUTE pin.
Power consumption is typically 215mW using a 3.3V
power supply. The GS9074A is lead-free, and the
encapsulation compound does not contain halogenated
flame retardant (RoHS compliant).
MCLADJ
SDI
SDI
CABLE LENGTH ADJUSTOR
CARRIER DETECT
MUTE
EQUALIZER
DC RESTORE
OUTPUT
CD
MUTE
BYPASS
SDO
SDO
AGC
Figure A: GS9074A Functional Block Diagram
GS9074A HD-LINX® II Adaptive Cable Equalizer
Data Sheet
34166 - 4
November 2009
www.gennum.com
1 of 17
Proprietary & Confidential

قانون اساسیصفحه 17
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