5

5

4

4

3

3

2

2

1

1

D D

C C

B B

A A

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A

1 1Thursday, December 13, 2007

Title

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1 1Thursday, December 13, 2007

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1 1Thursday, December 13, 2007

AMPLIFICADOR PARA MICROFONO ELECTRET

AMPLIFICADOR PARA MICROFONO ELECTRETwww.decelectronics.com

DEC electronicsDISPOSITIVOS ELECTRONICOS Y DE COMPUTO

CIRCUITO AMPLIFICADOR PARA MICROFONO ELECTRET CON LM386

DIBUJO: ING. OSCAR RODRIGUEZ RANGEL

.1 uF TANTALUM.1 uF TANTALUM

470 uF470 uF2.2 k2.2 k

.22 uF.22 uF

10 ohm10 ohm

12

ELECTRETELECTRET

470 uF470 uF3

25

6

14 87

+

-

U1LM386

+

-

U1LM386

R1

10 k

R1

10 k

SPEAKER 8 ohmSPEAKER 8 ohm