BA7781K Datasheet - Rohm

BA7781K Stereo microphone amplifier for camcorders

Pin No. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 Pin name MODE 1 PRE OUT R INV IN R INV OUT R MTX IN R MTX OUT R HPF IN R OUT R MIC MONO MIX OUT LPF INV IN LPF INV OUT VCC BIAS DET IN DET OUT OUT L HPF IN L MTX OUT L MTX IN L INV OUT L INV IN L PRE OUT .

BA7781K Features

* 1) Operates off a 3.0V to 5.25V power supply. 2) Automatic wind-noise rejection circuit. 3) Matrix circuit for stereo emphasis. 4) Automatic switching circuit for external microphones, built-in external monaural decision circuit, and input switch mode decision circuit.

* Block dia

BA7781K_Rohm.pdf