描述 Description

W88611PGENERAL 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
· 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 packageAPPLICATIONS
· VCD player
· SVCD player
· Multimedia systemW88631FGENERAL 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)

特性 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
· 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