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