CLC034 Datasheet, PDF (1/6 Pages) National Semiconductor (TI) – SMPTE 292M / 259M Adaptive Cable Equalizer

PRELIMINARY
February 2005
CLC034
SMPTE 292M / 259M Adaptive Cable Equalizer
General Description
The CLC034 SMPTE 292M / 259M adaptive cable equalizer
is a monolithic integrated circuit for equalizing data transmit-
ted over cable (or any media with similar dispersive loss
characteristics). The equalizer operates over a wide range of
data rates from 143 Mbps to 1.485 Gbps and supports
SMPTE 292M, SMPTE 344M and SMPTE 259M.
The CLC034 implements DC restoration to correctly handle
pathological data conditions. DC restoration can be by-
passed for low data rate applications. The equalizer is flex-
ible in allowing either single-ended or differential input drive.
Additional features include a combined carrier detect and
output mute pin which mutes the output when no signal is
present. A programmable mute reference is used to mute the
output at a selectable level of signal degradation. A cable
length indicator is provided to determine the amount of cable
being equalized.
Features
n SMPTE 292M, SMPTE 344M and SMPTE 259M
compliant
n Supports DVB-ASI at 270Mbps
n High data rates: 143 Mbps to 1.485 Gbps
n Equalizes up to 140 meters of Belden 1694A at 1.485
Gbps or up to 350 meters of Belden 1694A at 270 Mbps
n Manual bypass, cable length indicator, and output mute
with a programmable threshold
n Single-ended or differential input
n 50Ω differential outputs
n Single 3.3V supply operation
n Replaces the GS1524
Applications
n SMPTE 292M, SMPTE 344M, and SMPTE 259M serial
digital interfaces
Typical Application
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