ROHM BA3570FS, BA3570F Datasheet

Audio ICs

ALS headphone driver

BA3570F / BA3570FS

The BA3570F and BA3570FS are stereo headphone amplifiers with ALS (Auto Loudness System) which have been
designed for use as headphone drivers in audio equipment.

Applications
Stereo headphones

Features

1) The use of ALS (Auto Loudness System) makes it
possible to obtain a dynamic sound regardless of the
volume level.

Block diagram

2) Built-in power mute circuit.

3) Built-in bypass circuit.

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Audio ICs BA3570F / BA3570FS

FPin descriptions (pin numbers are for 22-pin BA3570F)

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)

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Audio ICs BA3570F / BA3570FS

FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 3.0V, RL = 16Ω, f = 1kHz,

and the measurement circuit is as shown in Fig. 1)

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