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LC78630E - Compact Disk Player DSP

Key Features

  • Built-in PLL for EFM signal synchronization (a hybrid analog-digital PLL that supports 4× playback).
  • Built-in PLL for variable pitch playback (±13%).
  • 18KB RAM on chip.
  • Error detection and correction (corrects two errors in C1 and four errors in C2).
  • Frame jitter margin: ±8 frames.
  • Frame synchronization signal detection, protection, and insertion.
  • Dual interpolation adopted in the interpolation circuit.
  • EFM data demodulatio.

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Ordering number : EN 5121B CMOS LSI LC78630E Compact Disk Player DSP Overview The LC78630E is a CD-DA signal-processing LSI for use in video CD player systems. The LC78630E incorporates signal-processing circuits for demodulating and deinterleaving the EFM signal from the optical pickup, error detection and correction, and digital filtering. It also includes a 1-bit D/A converter and executes commands sent from a system control microprocessor.