參數(shù)資料
型號(hào)： TMS320AV220
廠商： Texas Instruments, Inc.
英文描述： Video CD MPEG Decoder(視頻CD MPEG編碼器)
中文描述： 視頻CD MPEG解碼器（視頻光盤的MPEG編碼器）
文件頁(yè)數(shù)： 1/31頁(yè)
文件大?。?/td> 612K
代理商： TMS320AV220
TMS320AV220
VIDEO CD MPEG DECODER
SCSS016A – JUNE 1994 – REVISED JANUARY 1996
Copyright
1996, Texas Instruments Incorporated
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Direct Interface to the TMS320AV120 MPEG
Audio Decoder and the TMS320AV420
NTSC Encoder
Based on the C-Cube
CL450
Core
Microcode Is Stored in an On-Chip ROM
Audio Input Buffer Is On Chip
Audio/Video Synchronization Logic Is
Included
Simple Microprocessor Host Interface
Direct Interface to Either the Sony or Sanyo
CD-ROM Decoders
Video-CD Specific Functions:
– Fast Forward and Reverse
– Still Picture
– Direct DRAM (Stream In) Access
Fully Complies With All Requirements of
the MPEG Standard (ISO CD 11172)
Performs Real-Time Decoding of
CIF-Resolution Bitstreams
(352
×
240 Pixels at 30 Hz or
352
×
288 Pixels at 25 Hz)
Performs Real-Time Horizontal Pixel
Interpolation and Frame Duplication to
Produce Output Formats of 704
×
240 Pixels
at 60 Hz or 704
×
288 Pixels at 50 Hz
Automatically Converts Decompressed
Video to RGB Color-Space, Optional YCbCr
Output
Supports NTSC and PAL Video Output
Timing Formats
Interfaces to Z-80, H-8, or Similar
Processors and DRAM With No External
Logic
Requires Only 4 Mbits of 80-ns DRAM to
Decode CIF-Resolution MPEG Bit Streams
Decodes Huffman Variable-Length Codes at
a Peak Rate of 4 Bits Per Clock (160 Mbit/s
at 40 MHz)
Is Fabricated in EPIC
CMOS Process
description
The TMS320AV220 is a video CD MPEG-1 decoder designed to operate with the TMS320AV120 MPEG audio
decoder to implement a complete audio and video decoder solution. It also interfaces directly with the
TMS320AV420 NTSC encoder.
The TMS320AV220 is designed to be fully compatible with the video-CD and Karaoke standards and is targeted
for low-cost, consumer-oriented applications. All components required to accept and decode the multiplexed
MPEG-1 system stream are included on the chip, including the logic necessary for audio/video synchronization.
The ’AV220 also accepts MPEG-1 packet streams. With the addition of appropriate headers, video picture
streams are accepted and audio PCM data can be passed through the ’AV220 to the ’AV120 for playback in
bypass mode.
The TMS320AV220/120 chip set is designed to interface to a host system through a generic 8-bit
microprocessor interface. Glueless interface is possible to a Z-80, H-8, or similar processor.
The compressed MPEG-1 data-stream interface is through an 8-bit port that can directly connect to either of
the popular Sanyo (LC8950 or LC8951) or Sony (CXD1186BQ) CD-ROM decoders.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
C-Cube and CL450 are trademarks of C-Cube Microsystems.
EPIC is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TMS320AV220PCM 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Audio/Video Decoder for MPEG
TMS320AV410 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Encoder Circuit
TMS320AV410PJM 制造商:Rochester Electronics LLC 功能描述:- Bulk
TMS320AV411 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Color Encoder Circuit
TMS320AV411PJM 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
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