INTRODUCTION

S5L9290X is a signal processing LSI for the CD. Digital processing function (EFM demodulation, error correction), spindle motor servo processing, wide capture range DPLL and 1-bit DAC for the CD player are installed in S5L9290X.

FEATURES

? Signal processing part

— EFM data demodulation

— Frame sync detection, protection, insertion

— Sub code data processing (Q data CRC check, Q data register installed)

— Error correction (C1: 2 error correction, C2: 4 erasure correction)

— Installed 16K SRAM for De-interleave

— Interpolation

— Digital audio interface

— CLV servo control (X1, X2)

— Wide capture range digital PLL ( ± 50)

? Digital filter, DAC part

— 4 times over sampling digital filter

— Digital de-emphasis (can be process the 32kHz, 44.1kHz, 48kHz)

— Sigma-delta stereo DAC installed

— Audio L.P.F installed