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Overview

The LA9250M is a servo signal-processing IC for CD players. In combination with a CD DSP such as the LC78626KE, it can implement a CD player with a minimal number of external components.

Features

? Low-voltage operation: 2.4 V (minimum)

? Low current drain: 15 mA (at VCC = 3.0 V, typical)

? Built-in EF balance adjustment

? Built-in RF level AGC function

? RF level follower function for the tracking servo gain

(with turn-off function)

Functions

? I/V amplifier

? SLC

? FE

? Focus servo amplifier

? Spindle servo amplifier (with gain switching function)

? Focus detection (DRF and FZD)

? Defect detection

? RF amplifier with AGC

? APC

? TE (with variable gain and auto balance function)

? Tracking servo amplifier

? Sled servo amplifier (with turn-off function)

? Track detection (HFL, TES)

? Shock detection