AKD4673-A Datasheet, PDF (16/48 Pages) Asahi Kasei Microsystems – stereo CODEC with built-in MIC/HP amplifier and TSC

Analog Input/Output Circuits
(1) Input Circuits
(1-1) LIN1/RIN1, LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 Input Circuit
JP112 R110
LIN1 2.2k
6
J1
LIN1/RIN1
4
3
JP113 R111
RIN1 2.2k
[AKD4673-A]
MPWR
LIN1
RIN1
J2
LIN
2
1
3
4
5
J3
RIN
2
1
3
4
5
C30
R10
1u (short)
C31
R11
1u (short)
JP8
LIN2
LIN3
LIN4
LIN_SEL
JP9
RIN2
RIN3
RIN4
RIN_SEL
LIN2
LIN3
LIN4
RIN2
RIN3
RIN4
Figure 10. LIN1/RIN1, LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 Input Circuit
LIN2/RIN2, LIN3/RIN3, LIN4/RIN4 shares J2/J3.
JP8 (LIN_SEL) and JP9 (RIN_SEL) select each path.
When microphone is connected to J1, JP112 and JP113 should be short.
When LIN3/RIN3 paths of AK4673 are used, JP101 and JP108 should be set as below.
AIN3bit =“1” (Register Address 21H)
M IN
VCOC
L IN 3
JP108
R IN 3
JP101
<KM086000>
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