PT2253A 查看數據表（PDF） - Princeton Technology

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PT2253A

Electronic Volume Controller IC

Princeton Technology 

Electronic Volume Controller IC

APPLICATION CIRCUIT 1

DUAL POWER SUPPLY (L-CHANNEL ONLY)

Tel: 886-2-66296288

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

PT2253A

Vss -6V

10µF +

+4

3

1

LM358

_

2

8

VDD +6V

+

10µF

INPUT

GROUND

OUTPUT

10µF

10µF

10K

Vss

Vcc

L-OUT1 R-OUT1

L -IN 1

R-IN1

A-GND A-GND

L -IN 2

R-IN2

L-OUT2 R-OUT2

/INH

U/D

DC O

OSC

PT2253A

1

fosc =

(0.7) (CX)( RX)

RS ≥ 3RX

UP SW

+

CX 4.7µ

RS

100K

RX

33K

1N4148

+

1µF

1N4148

DOWN SW

PT2253A V2.8

- 12 -

December, 2005

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