ML7041 데이터 시트보기 (PDF) - Unspecified

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ML7041

Audio CODEC

Unspecified 

FEDL7041-05

ML7041

Vi

C

R1

MIC1I

20 k

C

R2

MIC1O

Transmit Gain

: VMIC1O/Vi = (R2/R1)

: VMIC2O/Vi = (R4/R3)

: VMIC3O/Vi = (R6/R5)

Vi

C

R3

MIC2I

20 k

A/D

Input select

:CR1-B7, B6 “00” -> MIC1

C

R4

MIC2O

:CR1-B7, B6 “01” -> MIC2

:CR1-B7, B6 “10” -> MIC3

:CR1-B7, B6 “11” -> no-input

Vi

C R5

MIC3–

20 k

Receive Gain

MIC3+

C

R6

MIC3O

:Vspo/VEXTO = (R8/R7)2

Output select

:CR1-B5, B4 “00” -> EXTO

SG

VREF

:CR1-B5, B4 “01” -> EAR1O

:CR1-B5, B4 “10” -> EAR2O

:CR1-B5, B4 “11” -> no-output

EAR1O

VSPO

EAR2O

VEXTO

C

EXTO

R7

EXTI

R8

SPO–

SPO+

D/A

Figure 1 Analog Interface

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