Datasheet > GS1574_07

GS1574_07

更新时间： 2024-09-17 10:44:23

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描述
Adaptive Cable Equalizer

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GS1574_07 数据手册

GS1574 HD-LINX® II

Adaptive Cable Equalizer

GS1574 Data Sheet

Features

Description

•

SMPTE 292M, SMPTE 344M and SMPTE 259M

compliant

The GS1574 is a second-generation high-speed bipolar

integrated circuit designed to equalize and restore

signals received over 75

Ω co-axial cable.

•

Automatic cable equalization

Multi-standard operation from 143Mb/s to

1.485Gb/s

The GS1574 is designed to support SMPTE 292M,

SMPTE 344M 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)

The GS1574 features DC restoration to compensate for

the DC content of SMPTE pathological test patterns.

Pb-free and RoHS Compliant

Pin compatible with the GS9074 Cable Equalizer

A voltage programmable mute threshold (MCLADJ) is

included to allow muting of the GS1574 output when an

approximate selected cable length is reached for

SMPTE 259M signals. This feature allows the GS1574

to distinguish between low amplitude SD-SDI signals

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

outputs of the GS1574 may be forced to a mute state by

applying a voltage to the MUTE pin.

Manual bypass (useful for low data rates with slow

rise/fall times)

•

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

Power consumption is typically 270mW using a 3.3V

power supply. The GS1574 is lead-free, and the

encapsulation compound does not contain halogenated

flame retardant.

•

Single 3.3V power supply operation

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

This component and all homogeneous subcomponents

are RoHS compliant.

Applications

SMPTE 292M, SMPTE 344M and SMPTE 259M

•

Coaxial Cable Serial Digital Interfaces.

CABLE LENGTH ADJUSTOR

MUTE

CARRIER DETECT

MUTE

MCLADJ

BYPASS

SDO

SDI

EQUALIZER

DC RESTORE

OUTPUT

SDI

AGC

GS1574 Functional Block Diagram

28854 - 5 May 2007

1 of 18

www.gennum.com

12 3 4 5 6 7...18

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