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 Jan 1999
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