MSM7717-02GS-K 데이터 시트보기 (PDF) - Oki Electric Industry

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MSM7717-02GS-K

Single Rail CODEC

Oki Electric Industry 

¡ Semiconductor

MSM7717-01/02/03

APPLICATION CIRCUIT

+3 V

Analog input

Analog inverted output*

Analog output*

51 kW

0.1 mF

MSM7717-01

AIN– PCMOUT

GSX

AIN+

SG

AOUT+

AOUT–

XSYNC

RSYNC

BCLK

PCMIN

ALAW

PWI

VFRO

51 kW

PDN

SGC

10 mF 0.1 mF

0V

AG

+3 V

+

1 mF

VDD

DG

0 to 10 W

PCM signal output

8 kHz SYNC signal input

PCM shift clock input

PCM data

Control of companding law

1: A-law

0: m-law

Power down control input

1: Normal operation

0: Power down

* These output signals have amplitudes above and below the offset level of VDD/2.

FREQUENCY CHARACTERISTICS ADJUSTMENT CIRCUIT

Microphone amp

R1

M

C1

C2

R2

R5

C4 R4

R3 C3

MSM7717-XX

AIN–

GSX

AIN+

SG

AOUT+

AOUT–

PWI

VFRO

Transmit frequency

characteristic

Adjustment determined by

C1, C2, R1 and R2

Receive frequency

characteristic

Adjustment determined by

C3, C4, R3 and R4

16/19

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