Datasheet > W9925

W9925

更新时间： 2024-11-12 22:14:35

品牌	Logo	应用领域
华邦 - WINBOND		解码器
页数	文件大小	规格书
1页	25K
描述
MPEG-1 A/V SYSTEM DECODER

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中文翻译

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数据手册

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W9925 数据手册

W9925PF

MPEG-1 A/V SYSTEM DECODER

GENERAL DESCRIPTION

The W9925PF is a high-performance single-chip MPEG-1 decoder. It performs real-time decompression of

ISO/IEC-11172 MPEG (Moving Picture Experts Group) streams, including system layer, audio and video data.

This chip incorporates an 8-bit host interface and a CD interface that make it an easy use in standalone

applications.

FEATURES

High integration of MPEG system, audio and video decoding, video scan timing generation, and CD-ROM

decoding functions

Applicable to ISO/IEC 11172 system streams, CD-DA data, and CD-ROM data

Fully supports Karaoke CD, Video CD 1.1, Video CD 2.0 and CD-I FMV specifications

Real-time decompression and synchronization of MPEG bitstreams with SIF resolution video and two

channels of Layer 1 or Layer 2 audio

Automatic frame rate conversion during A/V playback

Decompression of high resolution still pictures(704x480(NTSC) or 704x576(PAL))

Optional horizontal and vertical interpolation for image quality enhancement

Automatic IO address setup

Fade in/out control and brightness adjustment

RGB(24-bit) and YCbCr(24-bit, 16-bit, 8-bit) video output formats

Support NTSC/PAL interlace/non-interlace and VGA progressive display with programmable video timing

source

Input/Output mode for HSYNC, VSYNC, pixel clock

Audio serial PCM output with 16-bit resolution and sampling rate of 32, 44.1, and 48 KHz

Programmable audio L/R channel output mode with individual L/R channel mute control and volume

adjustment

Read/Write pictures through host processor

On-chip macro commands such as fast forward, slow motion, scan, etc.

Minimum 4M-bit DRAM required even for high resolution still pictures

16-bit ISA bus interface and 8-bit interface for 8051 series

4-pin CD interface

Built-in power down mode

0.6um triple-layer metal CMOS technology

Fully 5V operation

160-pin plastic QFP

Winbond Corporate Headquarters

Tel : 886-3-5790666

Fax : 886-3-5796139

Taipei Sales Office

Tel : 886-2-27190505

Fax : 886-2-27197502

Winbond Electronics North America Corp.

Tel : 1-408-943666

Fax : 1-408-9436668

Winbond Electronics H.K. Ltd.

Tel : 852-27513100

Fax : 852-27552064

Details are subject to change without notice. All trademarks are property of their respective holders.

Jan 1999

中文翻译

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