Winbond Electronics W9923QF Datasheet
W9923QF
NTSC/PAL
Encoder
Audio
DACTVStereo
Audio
CD
Module
W99132EX
MCU
CD
Panel Control
& User Interface
DRAM
VCD Decoder with MP3
GENERAL DESCRIPTION
The W9923QF is a high performance single-chip
VCD decoder with MP3 playback feature. It
performs real-time decompression of ISO/IEC11172 MPEG (Moving Picture Experts Group)
streams, including system layer, audio and video
data. It incorporates an 8-bit host interface and a
CD interface which make it easy to use. Also, its
versatile features help to build high-quality and
cost-effective standalone VCD and MP3
applications. W9923QF is pin-to-pin compatible to
the well-known VCD decoder, the W9925QF.
FEATURES
Integration
l MPEG-1 system/audio/video decoding and
synchronization
l CD-ROM decoding
l Glueless interface to 8051-series micro
controllers
l Standard 4-Pin CD Interface
l Supports both Fast Page DRAM and EDO
DRAM
l Provides programmable I/O pins for system
control
l On Screen Display
l TV timing generation
l User-programmable power-saving mode
System Operations
l Fully supports MP3 in ISO9660 CD format,
VCD2.0, VCD1.1, Karaoke CD, CD-I FMV, and
CDDA titles
l Digest function, provides quick overviews of
contents in one disc or among discs, with audio
output
l Versatile playback commands, including slow-
motion, scan, pause, single frame, video
clipping, freeze, and stop
l Provides fast forward play incorporating with
speed-up audio
l Enhanced error recovery algorithms to
overcome disc scratches and CD-drive errors
l Write/read pictures via host, allows writing
Logos on display or capturing pictures from
titles
Video Processing
l High quality video output of still pictures
(704x480 or 704x576) with only 4M DRAM
l Provides vertical scaling which allows full
screen display of 240 (480)-line sources on PAL
systems
l Provides filters to enhance image quality for
SIF format data on full screen display
l User-programmable fade-in, fade-out effects
and adjustable brightness
l 8-bit YCbCr video output
Audio Processing
l Decodes MPEG1 (layer-1, 2, 3) stereo
channel audio
l Provides voice cancellation mode for the
purpose to remove the voice component in
Karaoke titles
l Provides key control functions for Karaoke
applications
l Supports 3D and surround sound processing
l Digital volume control and various channel
selection modes both in MPEG and CDDA
playback
l 16-bit Audio serial PCM output
Physical
l Low power consumption: 0.5W at full speed
operation
l 3.3V power supply
l 100-pin plastic QFP
APPLICATIONS
Following figure shows a typical configuration of
VCD player with MP3 application.
W9923QF
Winbond Corporate Headquarters Taipei Sales Office Winbond Electronics North America Corp. Winbond Electronics H.K. Ltd.
Tel: 886-3-5790666 Tel: 886-2-27190505 Tel: 1-408-943666 Tel: 852-27513100
Fax: 886-3-5796139 Fax: 886-2-27197502 Fax: 1-408-9436668 Fax: 852-27552064
Details are subject to change without notice. All trade marks are property of their respective holders. May 1999
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