Page 1
VCD 4X RF AMP/DIGITAL SERVO & DSP
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
W88611P/W88631F
•
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
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)
• VCD player
• SVCD player
• Multimedia system
Following figure shows a typical VCD/SVCD connection
diagram of W88611P/W88631F
Sony KSS213
Servo Board
Digital Servo & DSP
W88631F
RF Amplifier
W88611P
Motor Driver
VCD/SVCD
MPEG Board
•MPEG Decoder
•MCU
•TV Encoder
•Audio DAC
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
Loading...