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2015.06 - Rev.D

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Technical Note

5/8

BH3544F,BH3547F,BH3548F

●

Terminal Equivalent Circuit / Description

Pin

No.

Pin

Name

I /O

Pin voltage

Equivalent circuit

Function

BH3544F, BH3548F

BH3547F

1

7

OUT1

OUT2

O

2.1V

(VCC=5V)

Output pin

2

MUTE

I

0.1V

(When open)

Mute control pin

Active:Hi

Mute:Lo (open)

3

5

IN1

IN2

I

2.1V

(VCC=5V)

Input pin

6

BIAS

I/O

2.1V

(VCC=5V)

Bias pin

(Since the 47 µF

externally attached

capacitor also serves

as the time constant for

pop noise

countermeasures,

evaluate adequately

when changing it.)

4

GND

I

-

-

-

GND pin

8

VCC

I

-

-

-

Power supply pin

※

The figure in the pin explanation and input/output equivalent circuit is reference value, it doesn’t guarantee the value.

200k

2

VCC

190k

2

VCC

BIAS

6

60k

60k

VCC

VCC

BIAS

6

70k

64k

VCC

VCC

10k

1

7

1

7

10k

1

7

1

7

3

5

90k

BIAS

VCC

3

5

90k

VCC

BIAS