ML7041 데이터 시트보기 (PDF) - Oki Electric Industry

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ML7041

Audio CODEC

Oki Electric Industry 

OKI Semiconductor

FEDL7041-04

ML7041

APPLICATION CIRCUIT

VDD

Mic

GND

C

R

MIC1I

C

R

MIC1O

R

MIC2I

C

R

20 kΩ

20 kΩ

MIC2O

C

MIC3–

C R MIC3+

20 kΩ

MIC3O

R

SG

C EAR1O

32 Ω

Hands Free

Kit

Speaker

Phone

EAR2O

32 Ω

C

IN

OUT

Earphone

SG

C=0.1µF

VREF

VDD (3.0 V)

C = 1 µF

C=

10 µF

Voice

detect

PCM

Com-

pand

A/D Slope

BPF

Filter

TONE/DTMF

Gen

D/A

LPF

20 kΩ

Sign bit

PCM

Expand

Regulator1

(150 mA)

Regulator2

(150 mA)

8Ω

8Ω

MCU I/F

(I2C)

PCMOUT

BCLK

SYNC

PCMIN

VDD (3.6 V)

RG1IN(3.6 V)

RG1O(3.0 V)

RG1PDN

RG2IN(3.6 V)

RG2O(3.0 V)

RG2PDN

C = 1 µF

Other

IC

+

C=10µF

Other

IC

+

C=10µF

GP1(150 mA) Buzzer

GP2(150 mA)

LCD

GP3(150 mA) Key Pad

GP4(150 mA)

AGGP

Vibrator

R

CR

C

3V

R = 1k to 10 kΩ

Speaker

25/28

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