AKD4683 Datasheet, PDF (29/74 Pages) Asahi Kasei Microsystems – AK4683 Evaluation Board Rev.1

ASAHI KASEI
[AKD4683-A]
„ Digital Input Circuit (Internal DIR)
RX0/1/2/3
PORT3
66
55
GND
4
3
VCC
GND
OUT
2
1
TORX176
PVSS
RX0 J14
2
3
1
R52
75
MR-552LS
PVSS PVSS
C31 _+C32
0.1u 10u
C34
0.1u
L1 _10u
R50
OPT
470
JP4
RX0
RCA
VDD
RX0
OPT
OPT
OPT
JP5
RX1
RX1
JP6
RX2
RX2
GND
GND
JP7
RX3
RX3
GND
PVSS
PVSS
PVSS
Figure 46. Digital Input Circuit (Internal DIR)
In case of input through RX0, optical connector PORT3 (TORX176) or RCA connector J14 (RX0) are available.
In case of input through RX1, RX2 or RX3, only the optical connector PORT3 is available.
In case of input through RX0, JP4 (RX0) controls digital input (optical connector PORT3 or RCA connector J14).
In case of input through RX1, RX2 or RX3, jumpers JP5 (RX1), JP6 (RX2) or JP7 (RX3) control digital input
channels (RX1, RX2 or RX3) from PORT3.
About only input channels, set some of jumpers JP5 (RX1), JP6 (RX2) or JP7 (RX3) to OPT.
About no-input channels, set other of jumpers JP5 (RX1), JP6 (RX2) or JP7 (RX3) to GND.
Digital input: RX0, RX1, RX2 and RX3 is available to select overwriting IPS10 bit of control register (Addr=03H)
of AK4683: DIR/DIT part by control software.
„ Digital Input Circuit (External DIR: PORT A)
J22 PORTA_RX0
2
3
1
MR-552LS
C46
R74 0.1u
75
DGND2
DGND2
Figure 47. Digital Input Circuit (External DIR: PORT A)
For digital input, RCA connector: J22 (PORTA_RX0) is available.
„ Digital Input Circuit (External DIR: PORT B)
J25 PORTB_RX0
2
3
1
MR-552LS
C56
R80 0.1u
75
DGND1
DGND1
Figure 48. Digital Input Circuit (External DIR: PORT B)

For digital input, RCA connector: J25 (PORTB_RX0) is available.
<KM077504>
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2005/08