描述 Description

■ Overview
The AN7196Z is an audio power IC developed for the sound output of car audio (dual 15 W). Especially, this circuit has solved the problem of heat radiation design inherent to a single chip IC with 4-channel audio ouput and realized a corresponding space saving at the same time.
In addition, it is incorporating various protection circuits to protect the IC from destruction by GND-open short-circuit to GND and power supply surge which are the most important subjects of power IC protection, and the IC will largely contribute to a high reliability design of equipment.
It is also incorporating the industrys first perfect 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.
The AN7196Z is pin compatible with the AN7191NZ (dual 20 W), so that the identical pattern design is allowed for high-class types as well as popular types.■

特性 Features

? Built-in various protection circuits (realizing high breakdown voltage against destruction )
?? Power supply surge breakdown voltage of 100 V or more
?? Ground open breakdown voltage of 16 V or more
? Built-in standby function (free from shock noise at standby on/off)
? Built-in muting function (the industrys first)
?? 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
? Space saving design is possible with a small size package
?? A heat radiation design that has been a problem particularly in a 4-ch. single chip IC can be done by the conventional method.
? Reduction in external components (parts reduction to half compared with the AN7176K)
?? 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
? Pin compatible with the AN7191NZ (dual 20 W)■ Applications
? Car audio