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W9925PF Datasheet, PDF (1/1 Pages) Winbond – MPEG-1 A/V SYSTEM DECODER | |||
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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
Details are subject to change without notice. All trademarks are property of their respective holders.
Winbond Electronics H.K. Ltd.
Tel : 852-27513100
Fax : 852-27552064
Jan 1999
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