LA9230 - Analog Signal Processor ASP
enclosed in brackets apply to the LA9231M only.
Pin No.
Symbol Contents 1 FIN2 Pickup photodiode connection pin.
Added to FIN1 pin to generate the RF signal, subtracted from FIN1 pin to generate the FE signal.
2 FIN1 Pickup photodiode connection pin.
3E Pickup photodiode connection pin.
Su
Ordering number: EN 5189 Monolithic Linear IC LA9230M/9231M Analog Signal Processor (ASP) for CD players Overview The LA9230M and LA9231M are analog signal processing and servo control bipolar ICs designed for use in compact disc players; a compact disc player can be configured by combining these ICs, a CD-DSP such as the LC78620E, and a small number of additional components.
The differences between the LA9230M and the LA9231M are that the LA9231M: (1) has a focus search time that is four time
LA9230 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 Specifications Maximum Ratings at Ta = 25 °C, Pins 22, 45 = GND Parameter Maxi
