AKD4955-A Datasheet, PDF (17/89 Pages) Asahi Kasei Microsystems – AK4955 Evaluation Board Rev.3

■ Analog Input / Output Circuits
1) Input circuit
(1-1) MIC/LINE1, 2 input circuit (except for Digital-MIC circuit).
[AKD4955-A]
MPWR
MPWR
J1
AIN
5
mini-Rch
2
mini-Lch
1
JP100
MPWR-SEL
J3
LIN
2
1
3
4
5
BNC-Lch
JP6
L1-mini
L1-BNC
L2-mini
L2-BNC
LIN-SEL
LIN1
1u
LIN2
1u
J5
RIN
2
1
3
4
5
BNC-Rch
JP7
R1-mini
R1-BNC
R2-mini
R2-BNC
RIN-SEL
RIN1
1u
RIN2
1u
Figure 23.Circuit diagram of MIC/LIN1, 2 input
The MIC/LINE1, 2 inputs are shared with J1, J3 and J5.
Please select the input to be used with JP6 (LIN-SEL) and JP7 (RIN-SEL).
(1-2) Video input circuit.
VIN J2
2
1
3
4
5
VIN
75
0.1u
Figure 24.Circuit diagram of Video input
(1-3) Monaural input circuit.
J8
MIN
2
1
3
4
5
1u
MIN
33k
33k
JP8
EXT
INT
MIN
MIN-SEL
Figure 25.Circuit diagram of Monaural input
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2011/08