MSM7731-01 查看數據表（PDF） - Oki Electric Industry

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MSM7731-01

Multifunction PCM CODEC (Voice Signal Processor)

Oki Electric Industry 

AIN

AGSX

Linear CODEC

(Acoustic side)

Acoustic Echo Canceler

SinA

SoutA

BPF

STTsA

–

LPADA

+

–

+

Center

Clip

+

ADC

RC LPF

Acoustic Adaptive

FIR Filter

(AAFF)

GPADA

Noise

Canceler

Slope

Filter

Line Echo Canceler

RoutL

ATTrL GainL

TPAD

RinL

Power Calc.

Howling Detector

Double Talk Det

Linear CODEC

(Line side)

LPF

LPWI

DAC

RC LPF

–

+

1.2kW

LOUT

LVFRO

AVFRO

APWI

RC LPF

DAC

Power Calc.

Howling Detector

Double Talk Det

AOUT

LPF

1.2kW

RoutA

GainA ATTrA

RinA

+

RPAD

Line Adaptive

FIR Filter

(LAFF)

GPADL

SoutL

Center

Clip

ATTsL

+

–

+

LPADL

+

SinL

RC LPF

ADC

BPF

LGSX

LIN

SG

VREF

Clock Gen

Timing Gen

AEC Controller

P/S

& S/P

EC/NC/SF/PAD

Controller

MCU Interface

LEC Controller

P/S

& S/P

LINEEN

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