AKD4223-A Datasheet, PDF (5/31 Pages) Asahi Kasei Microsystems – AK4223 Evaluation Board Rev.2

ASAHI KASEI
[AKD4223-A]
„ Input / Output circuit & Set-up jumper pin for Input / Output circuits
(1) Audio Input Circuit
GND1, LIN1, RIN1 ～ GND6, LIN6, RIN6 Input circuits
J4
LIN1
R21
R24
(open)
(Short)
C19
0.47u
LIN1
TP1
1
GND1
J7
RIN1
AVSS1
R18
(open)
AVSS1
R30
(open)
R15
(Short)
C16
0.47u
JP3
GND
GND1
R27
(Short)
AVSS1
C22
0.47u
RIN1
AVSS1
(2) Audio Output Circuit
Figure 3. GND1, LIN1, RIN1 Input circuit
LOUT1/ROUT1 ～ LOUT2/ROUT2 Output circuits
LOUT1
C34
R51
10u
300
J19
LOUT1
C36
(open)
C37
(open)
C38
R53
(open) (open)
ROUT1
C42
R55
10u
300
AVSS1
J21
ROUT1
C44
(open)
C45
(open)
C46
(open)
R57
(open)
AVSS1
Figure 4. LOUT1/ROUT1 Output circuit
<KM101302>
-5-
2010/08