BA3430FS datasheet(5/14 Pages) ROHM

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BA3430FS Scheda tecnica(PDF) 5 Page - Rohm

Il numero della parte	BA3430FS

Spiegazioni elettronici	Stereo pre-amplifiers with mute detection circuits for car stereos

PDF	14 Pages

Scroll/Zoom	100%

Produttore elettronici	ROHM [Rohm]

Homepage	http://www.rohm.com

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5 / 14 page

273

Audio ICs

BA3430S / BA3430F / BA3430FS

FMeasurement circuit

FAudio signal amplification circuit

(1)

Input switch circuit

This circuit switches between head A and head B as

needed for the auto reverse function.

A 10k

Ω or less resistor must be connected to the input pin

to limit the input current.

Equivalent circuit schematic

The electrolytic capacitor between the input pin and

ground is for preventing switch noise. Although it is pos-

sible to prevent switch noise in the audio output without

this capacitor by using the mute circuit, switch noise in

the mute detection circuit will not be prevented and noise

will be recognized as a song.

Truth table

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