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Audio ICs

Recording amplifier with built-in ALC

for headphone stereos

BA3641FV

The BA3641FV is an option IC developed for the purpose of adding a recording function to 1-chip playback system ICs

(BA3612AKV, etc.) for headphone stereos.

FApplications

Headphone stereos with recording function

FFeatures

1) Two built-in microphone amplifier channels.

2) Microphone mute function (radio / microphone

switching).

3) Two built-in recording amplifier channels (with ALC).

4) Two built-in monitor output amplifier channels (ra-

dio / microphone switching).

5) Built-in regulators for the erase head and bias OSC

circuit.

FAbsolute maximum ratings (Ta = 25_C)

FRecommended power supply voltage ranges (Ta = 25_C)