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

· 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

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)