BA7781 データシートの表示（PDF） - ROHM Semiconductor

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BA7781

Stereo microphone amplifier for camcorders

ROHM Semiconductor 

Video ICs

•Electrical characteristic curves

VCC = 3.3V

Input: 80Hz

Ta = 25°C

0

– 20

NOR side output

6→8pin

– 40

HPF side output

7→8pin

– 60

– 60 – 50 – 40 – 30 – 20 – 10

15PIN INPUT SIGNAL LEVEL: VDETIN (dBV)

Fig. 3 HPF switching characteristics

•External dimensions (Units: mm)

VCC = 3.3V

Input: 80Hz

2.5

Ta = 25°C

2.0

1.5

1.0

0.5

0

– 60 – 50 – 40 – 30 – 20 – 10

15PIN INPUT SIGNAL LEVEL: VDETIN (dBV)

Fig. 4 Detector voltage characteristis

9.0 ± 0.3

7.0 ± 0.2

24

25

17

16

32

9

1

8

0.15 ± 0.1

0.8

0.4 ± 0.1

0.15

QFP32

BA7781K

7

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