Part # LMH0031 datasheet

Part Manufacturer: National Semiconductor

National Semiconductor

Part Description: LMH0031 SMPTE 292M 259M Digital Video Deserializer Descrambler with Video and Ancillary Data FIFOs


Part Details:

Data LMH0031 January 2006 FIFOs LMH0031 SMPTE SMPTE 292M/259M Digital Video Deserializer /Descrambler with Video and Ancillary Data FIFOs 292M/259M General Description The LMH0031 s internal circuitry is powered from +2.5 Voltsand the I/O circuitry from a +3.3 Volt supply. Power dissipa- The LMH0031 SMPTE 292M / 259M Digital Video tion is typically 850mW. The device is packaged in a 64-pin Deserializer/Descrambler with Video and Ancillary Data TQFP. FIFOs is a monolithic integrated circuit that deserializes anddecodes SMPTE 292M, 1.485Gbps (or 1.483Gbps) serial Features component video data, to 20-bit parallel data with a synchro-nized parallel word-rate clock. It also deserializes and de- n SDTV/HDTV serial digital video standard compliant codes SMPTE 259M, 270Mbps, 360Mbps and n Supports 270 Mbps, 360 Mbps, 540 Mbps, 1.483 Gbps Digital SMPTE 344M (proposed) 540Mbps serial component video and 1.485 Gbps serial video data rates with data, to 10-bit parallel data. Functions performed by the auto-detection LMH0031 include: clock/data recovery from the serial data, n LSB de-dithering option serial-to-parallel data conversion, SMPTE standard data de- n Uses low-cost 27MHz crystal or clock oscillator coding, NRZI-to-NRZ conversion, parallel data clock genera- reference V tion, word framing, CRC and EDH data checking and han- ideo n Fast VCO lock time: < 500 µs at 1.485 Gbps dling, Ancillary Data extraction and automatic video format n Built-in self-test (BIST) and video test pattern generator determination. The parallel video output features a variable- (TPG)* depth FIFO which can be adjusted to delay the output data n Automatic EDH/CRC word and flag processing Deserializer up to 4 parallel data clock periods. Ancillary Data may beselectively extracted from the parallel data through the use


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LMH0031.pdf Datasheet