■ Overview

The AN7199Z is an audio power IC developed for the sound output of car audio (dual 20 W).

A capacitor and a resistor to stop oscillation are built in between the output pin and GND 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 when 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 CR for oscillation stop is required

It eliminates the need for NF and BS electrolytic capacitors

Muting function is unneccesary

Power supply choke coil is unnecessary

• Provided with beep sound input pin

• High sound quality design

■ Applications

• Car audio