Datasheet > GS1574A

GS1574A

更新时间： 2024-11-09 04:19:51

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GENNUM		/
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描述
GS1574A HD-LINX-R II Adaptive Cable Equalizer

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GS1574A 数据手册

GS1574A HD-LINX® II

Adaptive Cable Equalizer

GS1574A Data Sheet

Features

Description

•

SMPTE 292M and SMPTE 259M compliant

The GS1574A is a second-generation high-speed

BiCMOS integrated circuit designed to equalize and

Automatic cable equalization

restore signals received over 75Ω co-axial cable.

Multi-standard operation from 143Mb/s to

1.485Gb/s

The GS1574A is designed to support SMPTE 292M and

SMPTE 259M, and is optimized for performance at

270Mb/s and 1.485Gb/s.

•

Supports DVB-ASI at 270Mb/s

Small footprint (4mm x 4mm)

Pb-free and RoHS compliant

The GS1574A features DC restoration to compensate

for the DC content of SMPTE pathological test patterns.

Manual bypass (useful for low data rates with slow

rise/fall times)

A voltage programmable mute threshold (MCLADJ) is

included to allow muting of the GS1574A output when

an approximate selected cable length is reached for

SMPTE 259M signals. This feature allows the GS1574A

to distinguish between low amplitude SD-SDI signals

and noise at the input of the device. The serial digital

outputs of the GS1574A may be forced to a mute state

by applying a voltage to the MUTE pin.

•

Performance optimized for 270Mb/s and 1.485Gb/s

Typical maximum equalized length of Belden

1694A cable: 140m at 1.485Gb/s, 350m at 270Mb/s

•

50Ω differential output (with internal 50Ω pull-ups)

Manual output mute or programmable mute based

on max cable length adjust

•

Single 3.3V power supply operation

Power consumption is typically 215mW using a 3.3V

power supply. The GS1574A is lead-free, and the

encapsulation compound does not contain halogenated

flame retardant.

Operating temperature range: 0°C to +70°C

Applications

SMPTE 292M and SMPTE 259M Coaxial Cable

•

This component and all homogeneous subcomponents

are RoHS compliant.

Serial Digital Interfaces.

CABLE LENGTH ADJUSTOR

CARRIER DETECT

MUTE

MCLADJ

MUTE

BYPASS

SDO

SDI

EQUALIZER

DC RESTORE

OUTPUT

AGC

GS1574A Functional Block Diagram

33416 - 5 March 2006

1 of 16

www.gennum.com

12 3 4 5 6 7...16

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