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GS3490 数据表(PDF) 1 Page - Gennum Corporation

部件名 GS3490
功能描述  Low power operation from a single
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制造商  GENNUM [Gennum Corporation]
网页  http://www.gennum.com
标志 GENNUM - Gennum Corporation

GS3490 数据表(HTML) 1 Page - Gennum Corporation

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Proprietary & Confidential
GS3490
Final Data Sheet
Rev. 1
GENDOC-058568
April 2014
Gennum Products
GS3490
Configurable Adaptive Cable
Equalizer/Cable Driver
www.semtech.com
Key Features
Connection to a single BNC connector as an adaptive
cable equalizer or cable driver
Performance and cable reach optimized for
SMPTE ST 424, SMPTE ST 292, and SMPTE ST 259 data
rates
Multi-rate operation from 125Mb/s to 2.97Gb/s in
Equalizer Mode and 270Mb/s to 2.97Gb/s in
Cable Driver Mode
Supports DVB-ASI at 270Mb/s
Integrated 100
Ω, differential digital data input/output
termination
Low power operation from a single 3.3V supply:
206mW typical power consumption in EQ mode
190mW typical power consumption in CD mode
Temperature range: -40°C to +85°C
32-pin 5mm x 5mm QFN package
Cable Equalizer Features
Integrated cable equalizer:
140m - 3G
260m - HD
500m - SD
Carrier detect with adjustable squelch threshold
Optional automatic power-down on loss of input
signal
Cable Driver Features
Selectable output slew rate cable driver for compliance
with SMPTE ST 424, SMPTE ST 292, and SMPTE ST 259
standards
Applications
SMPTE ST 424, SMPTE ST 292 and SMPTE ST 259
interfaces requiring switching between cable
equalizing or cable driving functionality
Description
The GS3490 features integrated adaptive cable equalizer
and cable driver functionality. The GS3490 can be
field-configured as a SMPTE compliant cable equalizer or a
SMPTE compliant cable driver.
The GS3490 is optimized for applications with limited I/O
space. With its configurable EQ and cable driver
functionality, the GS3490 can be utilized as a single-device
solution in applications where the interface connector can
be configured as either an input or output.
The GS3490's cable equalizer is optimized for operation at
2.97Gb/s, 1.485Gb/s and 270Mb/s while providing typical
cable reach of 140m at 2.97Gb/s, 260m at 1.485Gb/s and
500m at 270Mb/s.
In cable driver mode, the dual slew rate capability provides
compatibility to SMPTE ST 424, SMPTE ST 292 and
SMPTE ST 259 interfaces.
GS3490 Block Diagram
CD
EQ
SDI/SDO
CD
DDO
DDI
DDI
DDO


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