NJM2171A データシートの表示（PDF） - Japan Radio Corporation

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NJM2171A

LOW VOLTAGE HEADPHONE AMPLIFIER for PORTABLE AUDIO

Japan Radio Corporation  

NJM2171A

s CONTROL TERMINAL CHARACTERISTICS

PARAMETER

SYMBOL

TEST CONDITION

High Level Input Voltage

Low Level Input Voltage

VIH STBY(4pin), MUTE(7pin)

VIL STBY(4pin), MUTE(7pin)

MIN.

1.2

0

TYP.

-

-

MAX.

V+1

0.3

UNIT

V

V

s CONTROL TERMINAL EXPLANATION

•STBY (4Pin)

PARAMETER

CONTROL SIGNAL

STANDBY ON

H

IC is non-active.

STANDBY OFF

L

IC is active.

STATUS

•MUTE (7Pin)

PARAMETER

MUTE ON

MUTE OFF

CONTROL SIGNAL

STATUS

H

IC doesn’t output the signal.

L

IC output the signal.

s APPLICATION CIRCUIT

V+2

22µF

OUT1

16Ω

IN1

1

330µF

2

0.47µF

3

STBY ON

STBY OFF

100kΩ

4

1µF

V+1

5

22µF

AMP1

10

AMP2

330µF

9

16Ω

0.47µF

8

OUT2

IN2

MUTE

100kΩ

7

1µF

MUTE ON

MUTE OFF

BIAS

6

22µF

[CAUTION]

The specifications on this databook are only

given for information , without any guarantee

as regards either mistakes or omissions. The

application circuits in this databook are

described only to show representative usages

of the product and not intended for the

guarantee or permission of any right including

the industrial rights.

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