LMH0344

www.ti.com

SNLS233L – APRIL 2007 – REVISED APRIL 2013

3 Gbps HD/SD SDI Adaptive Cable Equalizer

Check for Samples: LMH0344

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FEATURES

DESCRIPTION

The LMH0344 3 Gbps HD/SD SDI Adaptive Cable

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•

SMPTE 424M, SMPTE 292M, SMPTE 344M, and

Equalizer is designed to equalize data transmitted

SMPTE 259M Compliant

over cable (or any media with similar dispersive loss

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Supports DVB-ASI at 270 Mbps

characteristics). The equalizer operates over a wide

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Wide Range of Data Rates: 125 Mbps to 2.97

range of data rates from 125 Mbps to 2.97 Gbps and

supports SMPTE 424M, SMPTE 292M, SMPTE

Gbps

344M, and SMPTE 259M.

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Equalizes up to 120 Meters of Belden 1694A at

2.97 Gbps, up to 140 Meters of Belden 1694A

The LMH0344 implements DC restoration to correctly

at 1.485 Gbps, or up to 400 Meters of Belden

handle pathological data conditions. The equalizer

may be driven in either a single ended or differential

1694A at 270 Mbps

configuration.

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Equalizes 0-120m of Belden 1694A at 2.97

Gbps With 0.3 UI Maximum Output Jitter

Additional features include separate carrier detect

and output mute pins which may be tied together to

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Manual Bypass and Output Mute With a

mute the output when no signal is present. A

Programmable Threshold

programmable mute reference is provided to mute the

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Single-Ended or Differential Input

output at a selectable level of signal degradation.

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50

Ω Differential Outputs (Internal 50Ω Pullups)

For applications which use the RGB

α data patterns,

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Single 3.3V Supply Operation

the LMH0394 cable equalizer will provide better

performance.

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280 mW Typical Power Consumption

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16-Pin WQFN or 25-Ball CS-BGA Package

The

device

is

available

in

two

space–saving

packages: a 4 X 4 mm 16-pin WQFN and even more

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Industrial Temperature Range:

−40°C to +85°C

space-efficient 3 x 3 mm 25-ball CS-BGA package.

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HBM ESD Rating: 8 kV

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WQFN Version Footprint Compatible With the

LMH0044 and LMH0074

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Replaces the Gennum GS2974A or GS2974B

APPLICATIONS

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SMPTE 424M, SMPTE 292M, SMPTE 344M, and

SMPTE 259M Serial Digital Interfaces

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Serial Digital Data Equalization and Reception

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Data Recovery Equalization

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

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All trademarks are the property of their respective owners.

PRODUCTION DATA information is current as of publication date.

Copyright © 2007–2013, 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.