Overview

The LC89610 is a playback signal processing CMOS LSI that supports the mini-disk data format. Data that has been decoded by a CD decoder, an ACIRC decoder, or a CDROM decoder circuit is passed to a DRAM controller circuit and the LC89610 uses external DRAM to process shock proof. The shock proof processed data is passed to an audio data decoding LSI, the LC89602.

Features

• EFM decoder and PLL clock generator

• Detection, protection, and interpolation of the EFM frame synchronization signal

• Servo command control

• On-chip ACIRC decoder and ACIRC RAM

• ±8 frame jitter margin

• Powerful error detection and correction (C1: dual errors, C2: quadruple errors)

• CLV control using EFM and ADIP signals

• Subcode Q decoding and CRC error checking

• Shock proof memory using 1, 4, 16, or 64 Mbits of external DRAM

• Buffering control and management for TOC and UTOC data

• Buffering control and management for subdata

• ADIP decoding and CRC error checking

• Low-power design using a 0.8 µm rule CMOS process

• Support for low-voltage operation (VDD = 3.0 to 5.5 V)

• CCB based CPU interface