AKD4645A-A datasheet(9/53 Pages) AKM

Part #	AKD4645A-A

Description	Evaluation board Rev.1 for AK4645A

Download	53 Pages

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Manufacturer	AKM [Asahi Kasei Microsystems]

Direct Link	http://www.akm.com

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9 / 53 page

ASAHI KASEI

[AKD4645A-A]

< KM094901>

2009/10

- 9 -

Analog Input/Output Circuits

(1) Input Circuits

(1-1)

LIN1/RIN1, LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 Input Circuit

JP5

JP4

R3

2.2k

R4

2.2k

RIN1

LIN1

MPWR

6

4

3

J9

LIN1/RIN1

RIN1

LIN1

LIN3

LIN2

LIN4

RIN4

RIN2

RIN3

1

2

3

4

5

J5

RIN

JP14

RIN_SEL

RIN3

C27

1u

R17

short

RIN4

RIN2

1

2

3

4

5

J3

LIN

JP12

LIN_SEL

LIN3

C25

1u

R14

short

TP31

LIN

TP32

RIN

LIN2

LIN4

Figure 4. LIN1/RIN1, LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 Input Circuit

LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 shares J3/J5.

JP12(LIN_SEL) and JP14(RIN_SEL) select each path.

When LIN3/RIN3 paths of AK4645A are used, JP2 and JP9 should be set as below.

AIN3bit =“1” (Register Address 21H)

JP 9

VC O C

RIN3

JP 2

MIN

LIN 3

When microphone is connected to J9, JP4 and JP5 should be short.

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AKD4645A-A Datasheet(PDF) 9 Page - Asahi Kasei Microsystems

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