AKD5385B Datasheet, PDF (6/27 Pages) Asahi Kasei Microsystems – AK5385B Evaluation Board Rev.0

ASAHI KASEI
[AKD5385B-A]
„ Input Circuit
Analog signal is input to LIN/RIN pins via J1, J2 connectors.
9.56Vpp
J1
RIN
R7
4.7k
R6
4.7k
OP_AMP1-
2
1
3
U2A
NJM5532
OP_AMP1+
R8
3k
C17
47u
BIASR
R5
910
C16
470p
OP_AMP1-
6
7
5
U3B
NJM5532
OP_AMP1+
R9 _2.9Vpp
22
RIN+
R12
910
C20
470p
R13
3k
C21
47u
BIASR
OP_AMP1-
R14
2
22
1
3
U3A
NJM5532
OP_AMP1+
RIN-
9.56Vpp
J2
LIN
R19
4.7k
R18
4.7k
OP_AMP1-
6
7
5
U2B
NJM5532
OP_AMP1+
R20
3k
C25
47u
BIASL
R17
910
C24
470p
OP_AMP1-
2
1
3
U4A
NJM5532
OP_AMP1+
R21 2.9Vpp
22
LIN+
R22
910
C33
470p
R23
OP_AMP1-
3k
R24
6
22
C41
7
5
LIN-
47u
U4B
NJM5532
BIASL
OP_AMP1+
Figure 2. LIN/RIN Input circuits
* AKM assumes no responsibility for the trouble when using the circuit examples.
<KM080500>
-6-
2005/09