1 PF

1 PF

37.4:

Coaxial Cable

75:

LMH0034 Adaptive

Cable Equalizer

SDI

SDO

SDI

AEC+

AEC-

SDO

CLI

MUTEREF

CD/MUTE

BYPASS

4.7 PF

4.7 PF

Outputs

MUTEREF

CD/MUTE

BYPASS

1 PF

CLI

75:

6.8 nH

LMH0034

www.ti.com

SNLS213H – JANUARY 2006 – REVISED APRIL 2013

LMH0034 SMPTE 292M / 259M Adaptive Cable Equalizer

Check for Samples: LMH0034

1

FEATURES

DESCRIPTION

The LMH0034 SMPTE 292M / 259M adaptive cable

2

•

SMPTE 292M, SMPTE 344M and SMPTE 259M

equalizer

is

a

monolithic

integrated

circuit

for

Compliant

equalizing data transmitted over cable (or any media

•

Supports DVB-ASI at 270 Mbps

with similar dispersive loss characteristics). The

•

Data Rates: 125 Mbps to 1.485 Gbps

equalizer operates over a wide range of data rates

from 125 Mbps to 1.485 Gbps and supports SMPTE

•

Equalizes up to 200 Meters of Belden 1694A at

292M, SMPTE 344M and SMPTE 259M.

1.485 Gbps or up to 400 Meters of Belden

1694A at 270 Mbps

The LMH0034 implements DC restoration to correctly

handle pathological data conditions. DC restoration

•

Manual Bypass, Cable Length Indicator, and

can be bypassed for low data rate applications. The

Output Mute with a Programmable Threshold

equalizer is flexible in allowing either single-ended or

•

Single-Ended or Differential Input

differential input drive.

•

50

Ω Differential Outputs

Additional features include a combined carrier detect

•

Single 3.3V Supply Operation

and output mute pin which mutes the output when no

•

208 mW Typical Power Consumption with 3.3V

signal is present. A programmable mute reference is

used to mute the output at a selectable level of signal

Supply

degradation. A cable length indicator is provided to

•

Replaces the GS1524 and GS1524A

determine the amount of cable being equalized.

APPLICATIONS

•

SMPTE 292M, SMPTE 344M, and SMPTE 259M

Serial Digital Interfaces

•

Serial Digital Data Equalization and Reception

•

Data Recovery Equalization

Typical Application

1

Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of

Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.

2

All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2006–2013, Texas Instruments Incorporated

Products conform to specifications per the terms of the Texas

Instruments standard warranty. Production processing does not

necessarily include testing of all parameters.