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SAA7201

NXP
Part Number SAA7201
Manufacturer NXP
Description Integrated MPEG2 AVG decoder
Published Apr 8, 2005
Detailed Description INTEGRATED CIRCUITS DATA SHEET SAA7201 Integrated MPEG2 AVG decoder Objective specification File under Integrated Circu...
Datasheet PDF File SAA7201 PDF File

SAA7201
SAA7201

Overview
INTEGRATED CIRCUITS DATA SHEET SAA7201 Integrated MPEG2 AVG decoder Objective specification File under Integrated Circuits, IC02 1997 Jan 29 Philips Semiconductors Objective specification Integrated MPEG2 AVG decoder FEATURES General • Uses single external Synchronous DRAM (SDRAM) organized as 1M × 16 interfacing at 81 MHz; compatible with the SDRAM ‘lite’ or ‘PC’ • Fast external CPU interface; 16-bit data + 8-bit address • Dedicated input for audio and video data in PES or ES format; data input rate: ≤9 Mbytes/s in byte mode; ≤20 Mbit/s in bit serial mode; audio and/or video data can also serve as input via CPU interface • Single 27 MHz external clock for time base reference and internal processing; all required decoding and presentation clocks are generated internally • Internal system time base at 90 kHz can be synchronized via CPU port • Flexible memory allocation under control of the external CPU enables optimized partitioning of memory for different tasks • Boundary scan (JTAG) plus external SDRAM self test implemented • Supply voltage 3.
3 V • Package 160 QFP.
CPU relation • 16-bit data, 8-bit address, or 16-bit multiplexed bus; Motorola and Intel mode supported • Support for fast DMA transfer to either internal registers or external SDRAM • Maximum sustained rate to the external SDRAM is 9 Mbytes/s.
MPEG2 system • Parsing of MPEG2 PES and MPEG1 packet streams • Double System Time Clock (STC) counters for discontinuity handling • Time stamps or CPU controlled audio/video synchronization • Support for seamless time base change (edition) • Processing of errors flagged by channel decoding or demux section • Support for retrieval of PES header and PES private data.
MPEG2 audio SAA7201 • Decoding of 2 channel, layer I and II MPEG audio; support for mono, stereo, intensity stereo and dual channel mode • Constant and variable bit rates up to 448 kbit/s • Audio sampling frequencies: 48, 44.
1, 32, 24, 22.
05 and 16 kHz • CRC error detection • Selectable output chan...


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