■ Overview

The AN7198Z is an audio power IC developed for the sound output of car audio (Dual 20 W).

A capacitor and a resistor between the output pin and GND to stop oscillation are built-in so that a space saving of set is possible. Also, it is incorporates an industrys first superior muting circuit which is free from shock noise, so that a shock noise design under the set transient condition can be made easily when the muting circuit is used together with its standby function.

■ Features

• Built-in various protection circuits (Realizing high breakdown voltage against destruction)

Power supply surge breakdown voltage of 80 V or more

Ground-open breakdown voltage of 16 V or more

• Built-in standby function (Free from shock noise at STB-on/off)

• Built-in muting function

Free from shock noise at mute-on/off

Adapting attenuator method, so that abnormal sound due to waveform deformation is not generated

Attack time, recovery time of 50 ms or less

• Reduction in external components

No capacitors and resistors for oscillation stop are unnecessary

It eliminates the need for NF and BS electrolytic capacitors

Muting function is unnecessary

Power supply choke coil is unnecessary

• Provided with beep sound input pin

• High sound quality design

■ Applications

• Car audio