Overview

The LA74302FN is a SPEAKER AMP and MIC AMP built-in audio interface for DSC.

Functions

• Three-wire type SERIAL communications, MIC AMP

• MIC power supply provided

• ALC (ALC LEVEL: level changeover in three stages possible)

• REC/PB LPF (fc=4kHz: 3rd order)

• LINE output (with SERIAL MUTE)

• SPEAKER AMP (compatible with BEEP input MIX)

• With serial communications control electronic VOLUME