MSM7544GS-K 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM7544GS-K

Single Rail CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7543/7544

APPLICATION CIRCUIT

Analog interface

1:1

Analog input

600 W

0.1 mF

51 kW

1:1

Analog input

600 W

300 W

300 W

MSM7543/7544

AIN– PCMOUT

XSYNC

GSX

AIN+

RSYNC

SG

BCLOCK

AOUT+ PCMIN

AOUT–

PDN

PWI

TMC

VFRO

51 kW

SGC

0.1 mF

0V

AG

DG

+5 V

10 mF +

0 to 22 W

1 mF

VDD

Digital interface

+5 V

PCM signal output

8 kHz SYNC signal input

PCM shift clock input

PCM data input

Power Down control input

Analog loop-back

control input

FREQUENCY CHARACTERISTICS ADJUSTMENT CIRCUIT

Microphone amp

R1

M

AIN–

C1

C2

R2

GSX

AIN+

SG

AOUT+

R4

C4

AOUT–

PWI

R3 C3

VFRO

Transmit frequency

characteristic

Adjustment determined with

C1, C2, R1, R2.

Receive frequency

characteristic

Adjustment determined with

C3, C4, R3, R4.

15/19

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