Overview
The LA9220M is an analog signal processing and servo control bipolar IC designed for use in compact disc players ; a compact disc player can be configured by combining this IC, a CD-DSP such as the LC78681KE, and a small number of additional components.

Features
The following automatic adjustment functions are built in.
• Focus offset auto cancel.
• Tracking offset auto cancel.
• EF balance auto adjustment.
• RF level AGC function.
• Tracking servo gain RF level following function.