MSM7602-011GS-2K データシートの表示（PDF） - Oki Electric Industry

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MSM7602-011GS-2K

Echo Canceler

Oki Electric Industry 

¡ Semiconductor

MSM7602

Example 4: Canceling of both acoustic echo and line echo

(to handle both acoustic echo from line input and line echo from microphone input)

MSM7602

MSM7602

ROUT

RIN SOUT

SIN

Line input

Acoustic echo CODEC

Microphone input

AFF

SIN

+

–

+

SOUT

For acoustic echo

AFF

CODEC

H

RIN

ROUT

Line echo

For line echo

Control Pin Connection Example

Single chip connection

NLP

HCL

ADP

ATT

GC

HD

PWDWN

RST

+5 V

MS * * PD15

NLP

HCL * PD 0

ADP

ATT

GC

HD

PWDWN

RST

INT

IRLD

SF1 * * OF1

SF2 * * OF2

Asterisk (*) indicates a pin only for the MSM7602-011

2-stage cascade connection

Master + (slave ¥ 1)

NLP

HCL

ADP

ATT

GC

HD

PWDWN

RST

+5 V

Master chip

MS PD15

NLP

HCL PD 0

ADP

ATT

GC

HD

PWDWN

RST

INT IRLD

SF1 OF1

SF2 OF2

+5 V

Slave chip

MS PD15

NLP

HCL PD 0

ADP

ATT

GC

HD

PWDWN

RST

INT IRLD

SF1 OF1

SF2 OF2

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