W88611P/W88631F
VCD 4X RF AMP/DIGITAL SERVO & DSP
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 trademarks are property of their respective holders. Jan 1999
W88611P
GENERAL DESCRIPTION
W88611P is a CMOS IC developed for VCD and CD
Player use. It includes a RF amplifier, tracking error
amplifier, focus error amplifier, etc..., on a single chip.
FEATURES
RF amplifier, tracking error amplifier, focus error
amplifier, APC circuit, and reference amplifier
included on a single chip
On-chip RF output signal automatic gain control
(AGC) and peak to peak envelop detection
Single 5V power supply
32-pin PLCC package
W88631F
GENERAL DESCRIPTION
W88631F provides CD signal processing decoding
functions and all servo functions needed in a three-spot
CD system. This chip has a high degree of integration to
reduce the number of external components required.
FEATURES
1X, 2X and up to 4X speed modes are supported
Chip clock 33.8688 MHz
Serial microcomputer interface
Fully digital servo processing (focus, tracking,
sledge, spindle servo)
Fully automatic adjustment (focus / tracking gain,
offset, balance)
Wide range of adjustable servo characteristics
possible
Built-in access procedure
Focus automatic start up
Trackloss, Shock, Defect, Dropout detection
Fully digital data recovery (digital equalizer, data
slicer, PLL)
Wide data capture range (+/- 1.5 channel clock, up to
4X speed)
Wide frame jitter margin (+/- 4 frames) with built-in
deinterleaved SRAM
EFM protected demodulator
Digital spindle motor control by CLV
Error correction capabilities
Subcode data processing
Audio data processing, Concealment strategy, digital
attenuation and soft mute
Audio data output interface
--- standard EBU digital audio output interface
--- D/A converter interface and CD-ROM interface
Extended general I/O port simplifies system design
100-pin QFP package
APPLICATIONS
VCD player
SVCD player
Multimedia system
Following figure shows a typical VCD/SVCD connection
diagram of W88611P/W88631F
Digital Servo & DSP
W88631F
RF Amplifier
W88611P
Motor Driver
Sony KSS213
MPEG Decoder
MCU
TV Encoder
Audio DAC
VCD/SVCD
MPEG Board
Servo Board
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