INTRODUCTION

KS1454 is a DVDP (Digital Video Disc Player) 1-chip LSI which includes the digital servo and DSP(Digital Signal Processor) features.

Servo Block performs the digital servo function, which controls disc speed and pick-up location as it retrieves signals from the disc (CD,VCD,DVD). Servo block contains the wide capture PLL.

DSP block receives the EFM signal as an input and performs buffer control for demodulated data output while EFM demodulation and error corrections are being carried out.

FEATURES

MICOM

― 8bit parallel interface

― Built-in direct memory access (DVD/CD)

PLL

― Built-in wide capture range (± 50) PLL

― Built-in EFM slice

― Built-in F/V converter for RF EQ adjustment of DAC method

― Charge-pump PWM control method

― FD/PD gain adjustment

― Built-in wide range VCO(20 - 100MHz)

SERVO

― CD/CD-ROM 1,2x, DVD 1x compatible digital servo IC.

― complete automatic adjusting FEATURE.

(Focus/Tracking Loops Input Gain, Offset, Balance, Loop Gain)

― Each servo loop has a digital filter, reducing the number of external parts.

― Built-in AGC FEATURE that responds optimally to various disc types.

― High speed moving control(built-in SLED FG Encoder).

― Built-in speed controlling search algorithm.

― Built-in 10bit A/D Converter and 10bit D/A Converter.

― Various filter characteristics and internal constants can be set from MICOM.

― Built-in defect and shock response.

― Built-in 16bit track counter.

― Chooses the best method from multiple search algorithm.

― Servo operation improved by widening the range through high speed sampling of 151.2kHz

DSP

― External PLCK input (in Test mode)

― EFM/EFM+ demodulator

― Sync protection/insertion

― CIRC/RS-PC Error correction (4/16 Erasure Correction)

― 4-16 MBits DRAM interface

(external component for error correction/Track Buffer)

― Descramble

― ID Error correction

― Main data error detection(EDC)

― DSI detection and DSI data output

― A/V Decoder Parallel Interface

― Built-in CD-DA Decoder

― Subcode data serial output

― Spindle servo control signal generation

― DVD/CD/VCD playback

― CD data serial/parallel output

― CLV feature

― CD/VCD repeat correction feature

TECHNOLOGY

― Internal 3.3V operation and 3.3V external interface. (Analog Block)

― Internal 3.3V operation and 5V external interface. (Digital Block)

― Package 160-QFP