LMH0036 Datasheet, PDF (1/19 Pages) National Semiconductor (TI) – SD SDI Reclocker with 4:1 Input Multiplexer

LMH0036
www.ti.com
SNLS254B – MARCH 2008 – REVISED APRIL 2013
LMH0036 SD SDI Reclocker with 4:1 Input Multiplexer
Check for Samples: LMH0036
FEATURES
1
•2 Supports SMPTE 259M (C) Serial Digital Video
Standard
• Supports 270 Mbps Serial Data Rate Operation
• Supports DVB-ASI at 270 Mbps
• Single 3.3V Supply Operation
• 360 mW Typical Power Consumption
• Integrated 4:1 Multiplexed Input
• Two Differential, Reclocked Outputs
• Choice of Second Reclocked Output or Low-
Jitter, Differential, Data-Rate Clock Output
• Single 27 MHz External Crystal or Reference
Clock Input
• Lock Detect Indicator Output
• Output Mute Function for Data and Clock
• Auto/Manual Reclocker Bypass
• Differential LVPECL Compatible Serial Data
Inputs and Outputs
• LVCMOS Control Inputs and Indicator Outputs
• 48-Pin WQFN Package
• Industrial Temperature Range: -40°C to +85°C
• Footprint Compatible with the LMH0056 and
LMH0356
APPLICATIONS
• SDTV Serial Digital Video Interfaces for:
– Digital Video Routers and Switchers
– Digital Video Processing and Editing
Equipment
– DVB-ASI Equipment
– Video Standards and Format Converters
DESCRIPTION
The LMH0036 SD SDI Reclocker with 4:1 Input
Multiplexer retimes serial digital video data
conforming to the SMPTE 259M (C) standard. The
LMH0036 operates at the serial data rate of 270
Mbps, and also supports DVB-ASI operation at 270
Mbps. The LMH0036 includes an integrated 4:1 input
multiplexer for selecting one of four input data
streams for retiming.
The LMH0036 retimes the incoming data to suppress
accumulated jitter. The LMH0036 recovers the serial
data-rate clock and optionally provides it as an
output. The LMH0036 has two differential serial data
outputs; the second output may be selected as a low-
jitter, data-rate clock output. Controls and indicators
are: serial clock or second serial data output select,
manual rate select input, SD indicator output, lock
detect output, auto/manual data bypass, and output
mute. The serial data inputs, outputs, and serial data-
rate clock outputs are differential LVPECL
compatible. The CML serial data and serial data-rate
clock outputs are suitable for driving 100Ω
differentially terminated networks. The control logic
inputs and outputs are LVCMOS compatible.
The LMH0036 is powered from a single 3.3V supply.
Power dissipation is typically 360 mW. The device is
housed in a 48-pin WQFN package.
1
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2
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.
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