AKD4645A-A Datasheet, PDF (9/53 Pages) Asahi Kasei Microsystems – Evaluation board Rev.1 for AK4645A

ASAHI KASEI
„ Analog Input/Output Circuits
(1) Input Circuits
(1-1) LIN1/RIN1, LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 Input Circuit
R4
R3
2.2k
2.2k
MPWR
J9
LIN1/RIN1
6
4
3
JP4
RIN1
JP5
LIN1
RIN1
LIN1
[AKD4645A-A]
J3
LIN
2
1
3
4
5
TP31 C25
LIN 1u
R14
short
JP12
LIN3
LIN2
LIN4
LIN_SEL
LIN3
LIN2
LIN4
J5
RIN
2
1
3
4
5
TP32 C27
RIN 1u
R17
short
JP14
RIN3
RIN2
RIN4
RIN_SEL
RIN3
RIN2
RIN4
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)
M IN
VCOC
L IN 3
JP2
R IN 3
JP9
When microphone is connected to J9, JP4 and JP5 should be short.
< KM094901>
-9-
2009/10