1FEATURES
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 lowjitter,
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 datarate
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.