Datasheet

LMH0046
www.ti.com SNLS222F –APRIL 2006–REVISED APRIL 2013
LMH0046 HD/SD SDI Reclocker With Dual Differential Outputs
Check for Samples: LMH0046
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FEATURES
DESCRIPTION
The LMH0046 HD/SD SDI Reclocker retimes serial
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• Supports SMPTE 292M and SMPTE 259M
digital video data conforming to the SMPTE 292M
(A & C) Serial Digital Video Standards
and SMPTE 259M (A & C) standards. The LMH0046
• Supports 143 Mbps, 270 Mbps, 1.483 Gbps,
operates at serial data rates of 143 Mbps, 270 Mbps,
and 1.485 Gbps Serial Data Rate Operation
1.483 Gbps and 1.485 Gbps. The LMH0046 supports
DVB-ASI operation at 270 Mbps.
• Supports DVB-ASI at 270 Mbps
• Single 3.3V Supply Operation
The LMH0046 automatically detects the incoming
data rate and adjusts itself to retime the incoming
• 330 mW Typical Power Consumption
data to suppress accumulated jitter. The LMH0046
• Two Differential, Reclocked Outputs
recovers the serial data-rate clock and optionally
• Choice of Second Reclocked Output or Low-
provides it as an output. The LMH0046 has two
Jitter, Differential, Data-Rate Clock Output
differential serial data outputs; the second output may
be selected as a low-jitter, data-rate clock output.
• Single 27 MHz External Crystal or Reference
Controls and indicators are: serial clock or second
Clock Input
serial data output select, manual rate select input,
• Manual Rate Select Input
SD/HD rate indicator output, lock detect output,
• SD/HD Operating Rate Indicator Output
auto/manual data bypass and output mute. The serial
data inputs, outputs, and serial data-rate clock
• Lock Detect Indicator Output
outputs are differential LVPECL compatible. The CML
• Output Mute Function for Data and Clock
serial data and serial data-rate clock outputs are
• Auto/Manual Reclocker Bypass
suitable for driving 100Ω differentially terminated
networks. The control logic inputs and outputs are
• Differential LVPECL Compatible Serial Data
LVCMOS compatible.
Inputs and Outputs
• LVCMOS Control Inputs and Indicator Outputs
The LMH0046 is powered from a single 3.3V supply.
Power dissipation is typically 330 mW. The device is
• 20-Pin HTSSOP Package
housed in a 20-pin HTSSOP package.
• Industrial Temperature Range: -40°C to +85°C
APPLICATIONS
• SDTV/HDTV Serial Digital Video Interfaces For:
– Digital Video Routers and Switchers
– Digital Video Processing and Editing
Equipment
– DVB-ASI Equipment
– Video Standards and Format Converters
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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.