LMH0344 Datasheet, PDF (1/15 Pages) Texas Instruments – 3 Gbps HD/SD SDI Adaptive Cable Equalizer

LMH0344
www.ti.com
SNLS233L – APRIL 2007 – REVISED APRIL 2013
3 Gbps HD/SD SDI Adaptive Cable Equalizer
Check for Samples: LMH0344
FEATURES
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•2 SMPTE 424M, SMPTE 292M, SMPTE 344M, and
SMPTE 259M Compliant
• Supports DVB-ASI at 270 Mbps
• Wide Range of Data Rates: 125 Mbps to 2.97
Gbps
• Equalizes up to 120 Meters of Belden 1694A at
2.97 Gbps, up to 140 Meters of Belden 1694A
at 1.485 Gbps, or up to 400 Meters of Belden
1694A at 270 Mbps
• Equalizes 0-120m of Belden 1694A at 2.97
Gbps With 0.3 UI Maximum Output Jitter
• Manual Bypass and Output Mute With a
Programmable Threshold
• Single-Ended or Differential Input
• 50Ω Differential Outputs (Internal 50Ω Pullups)
• Single 3.3V Supply Operation
• 280 mW Typical Power Consumption
• 16-Pin WQFN or 25-Ball CS-BGA Package
• Industrial Temperature Range: −40°C to +85°C
• HBM ESD Rating: 8 kV
• WQFN Version Footprint Compatible With the
LMH0044 and LMH0074
• Replaces the Gennum GS2974A or GS2974B
DESCRIPTION
The LMH0344 3 Gbps HD/SD SDI Adaptive Cable
Equalizer is designed to equalize data transmitted
over cable (or any media with similar dispersive loss
characteristics). The equalizer operates over a wide
range of data rates from 125 Mbps to 2.97 Gbps and
supports SMPTE 424M, SMPTE 292M, SMPTE
344M, and SMPTE 259M.
The LMH0344 implements DC restoration to correctly
handle pathological data conditions. The equalizer
may be driven in either a single ended or differential
configuration.
Additional features include separate carrier detect
and output mute pins which may be tied together to
mute the output when no signal is present. A
programmable mute reference is provided to mute the
output at a selectable level of signal degradation.
For applications which use the RGBα data patterns,
the LMH0394 cable equalizer will provide better
performance.
The device is available in two space–saving
packages: a 4 X 4 mm 16-pin WQFN and even more
space-efficient 3 x 3 mm 25-ball CS-BGA package.
APPLICATIONS
• SMPTE 424M, SMPTE 292M, SMPTE 344M, and
SMPTE 259M Serial Digital Interfaces
• Serial Digital Data Equalization and Reception
• 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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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2007–2013, Texas Instruments Incorporated