W9923QF
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/IEC-
11172 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.
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
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
Winbond Corporate Headquarters
Tel: 886-3-5790666
Fax: 886-3-5796139
Taipei Sales Office
Tel: 886-2-27190505
Fax: 886-2-27197502
APPLICATIONS
Following figure shows a typical configuration of
VCD player with MP3 application.
CD
CD
Module
NTSC/PAL
Encoder
TV
W9923QF
W99132EX
MCU
Audio
DAC
Stereo
Audio
Panel Control
& User Interface
DRAM
Winbond Electronics North America Corp.
Tel: 1-408-943666
Fax: 1-408-9436668
Winbond Electronics H.K. Ltd.
Tel: 852-27513100
Fax: 852-27552064
May 1999
Details are subject to change without notice. All trade marks are property of their respective holders.
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