W9923QF
VCD Decoder with MP3
GENERAL DESCRIPTION
Video Processing
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High quality video output of still pictures
(704x480 or 704x576) with only 4M DRAM
Provides vertical scaling which allows full
screen display of 240 (480)-line sources on PAL
systems
Provides filters to enhance image quality for
SIF format data on full screen display
User-programmable fade-in, fade-out effects
and adjustable brightness
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.
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8-bit YCbCr video output
Audio Processing
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Decodes MPEG1 (layer-1, 2, 3) stereo
channel audio
FEATURES
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Provides voice cancellation mode for the
purpose to remove the voice component in
Karaoke titles
Provides key control functions for Karaoke
applications
Supports 3D and surround sound processing
Digital volume control and various channel
selection modes both in MPEG and CDDA
playback
Integration
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MPEG-1 system/audio/video decoding and
synchronization
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CD-ROM decoding
Glueless interface to 8051-series micro
controllers
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Standard 4-Pin CD Interface
Supports both Fast Page DRAM and EDO
DRAM
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16-bit Audio serial PCM output
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Provides programmable I/O pins for system
control
Physical
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On Screen Display
TV timing generation
User-programmable power-saving mode
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Low power consumption: 0.5W at full speed
operation
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3.3V power supply
100-pin plastic QFP
System Operations
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Fully supports MP3 in ISO9660 CD format,
VCD2.0, VCD1.1, Karaoke CD, CD-I FMV, and
CDDA titles
Digest function, provides quick overviews of
contents in one disc or among discs, with audio
output
Versatile playback commands, including slow-
motion, scan, pause, single frame, video
clipping, freeze, and stop
Provides fast forward play incorporating with
speed-up audio
Enhanced error recovery algorithms to
overcome disc scratches and CD-drive errors
Write/read pictures via host, allows writing
Logos on display or capturing pictures from
titles
APPLICATIONS
Following figure shows a typical configuration of
VCD player with MP3 application.
CD
CD
Module
NTSC/PAL
Encoder
TV
W9923QF
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Stereo
Audio
W99132EX
MCU
Audio
DAC
Panel Control
DRAM
& User Interface
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 trade marks are property of their respective holders.
May 1999