NJM2781 查看數據表（PDF） - Japan Radio Corporation

零件编号

产品描述 (功能)

比赛名单

NJM2781

Monaural Microphone Amplifier

Japan Radio Corporation  

NJM2781

Test Circuit 3 (Operating Current Icc1,Icc2)

1µF

10µF

10µF

100Ω

NOISE

1

REG

2

STBY

3

Input

6.8kΩ

0.33µF

V+

4

IN+

Icc1:STBY=L

Icc2:STBY=H

GND 8

Reg

V+ 7

GND

V+

OUT 6

47kΩ

2.2µF

Output

IN- 5

15kΩ

9kΩ

4.7µF

680Ω

Test Circuit 4 (Mic Power Supply Voltage Vo)

1µF

1 NOISE

6.8kΩ

10µF

10µF

100Ω

6.8kΩ

REG

2

STBY

3

Input

0.33µF

V+

4

IN+

GND 8

Reg V+ 7

GND

V+

OUT 6

47kΩ

2.2µF

Output

IN- 5

15kΩ

9kΩ

4.7µF

680Ω

–4–

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