LMH0031 Datasheet, PDF (1/39 Pages) National Semiconductor (TI) – SMPTE 292M/259M Digital Video Deserializer Descrambler with Video and Ancillary Data FIFOs

LMH0031
www.ti.com
SNLS218A – JANUARY 2006 – REVISED APRIL 2013
LMH0031 SMPTE 292M/259M Digital Video Deserializer / Descrambler with Video
and Ancillary Data FIFOs
Check for Samples: LMH0031
FEATURES
1
•2 SDTV/HDTV Serial Digital Video Standard
Compliant
• Supports 270 Mbps, 360 Mbps, 540 Mbps,
1.483 Gbps and 1.485 Gbps Serial Video Data
Rates with Auto-Detection
• LSB De-Dithering Option
• Uses Low-Cost 27MHz Crystal or Clock
Oscillator Reference
• Fast VCO Lock Time: < 500 µs at 1.485 Gbps
• Built-in Self-Test (BIST) and Video Test Pattern
Generator (TPG)
(1) _{Patent Applications Made or Pending}
• Automatic EDH/CRC Word and Flag
Processing
• Ancillary Data FIFO with Extensive Packet
Handling Options
• Adjustable, 4-Deep Parallel Output Video Data
FIFO
• Flexible Control and Configuration I/O Port
• LVCMOS Compatible Control Inputs and Clock
and Data Outputs
• LVDS and ECL-Compatible, Differential, Serial
Inputs
• 3.3V I/O Power Supply and 2.5V Logic Power
Supply Operation
• Low Power: Typically 850mW
• 64-Pin TQFP Package
• Commercial Temperature Range 0°C to +70°C
APPLICATIONS
• SDTV/HDTV Serial-to-Parallel Digital Video
Interfaces for:
– Video Editing Equipment
– VTRs
– Standards Converters
– Digital Video Routers and Switchers
– Digital Video Processing and Editing
Equipment
– Video Test Pattern Generators and Digital
Video Test Equipment
– Video Signal Generators
DESCRIPTION
The LMH0031 SMPTE 292M / 259M Digital Video
Deserializer/Descrambler with Video and Ancillary
Data FIFOs is a monolithic integrated circuit that
deserializes and decodes SMPTE 292M, 1.485Gbps
(or 1.483Gbps) serial component video data, to 20-bit
parallel data with a synchronized parallel word-rate
clock. It also deserializes and decodes SMPTE 259M,
270Mbps, 360Mbps and SMPTE 344M (proposed)
540Mbps serial component video data, to 10-bit
parallel data. Functions performed by the LMH0031
include: clock/data recovery from the serial data,
serial-to-parallel data conversion, SMPTE standard
data decoding, NRZI-to-NRZ conversion, parallel data
clock generation, word framing, CRC and EDH data
checking and handling, Ancillary Data extraction and
automatic video format determination. The parallel
video output features a variable-depth FIFO which
can be adjusted to delay the output data up to 4
parallel data clock periods. Ancillary Data may be
selectively extracted from the parallel data through
the use of masking and control bits in the
configuration and control registers and stored in the
on-chip FIFO. Reverse LSB dithering is also
implemented.
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.
Copyright © 2006–2013, Texas Instruments Incorporated