Overview
The LA9242M 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 with a CD-DSP such as the LC78922E and LC78620E, with a small number of additional components required. In addition, this IC allows CD-RW disk playback due to the on-chip gain switching function.

FEATUREs
• The following automatic adjustment functions are built in.
   • Focus offset auto cancel : FE (pin 20)
   • Tracking offset auto cancel : TE (pin 7).
   • EF balance auto adjustment.
   • RF level AGC function.
   • Tracking servo gain RF level following function.
• Focus search smoothing setting pin : FSC (pin 46)
• EF balance adjustment variable range setting pin : (pin 47)
• Focus search mode switching pin : (pin 55)
• Play disc (Normal, CD-RW) mode switching pin : (pin 38)