AKD4440-A Datasheet, PDF (5/29 Pages) Asahi Kasei Microsystems – AK4440 Evaluation Board Rev.3

[AKD4440-A]
„ Register control
AKD4440 can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT3
(uP-I/F) to PC by 10-line flat cable packed with this. Take care of the direction of connector. There is a mark at
connector. Connect the mark of 10-pin connector to pin1 of PORT3. (Figure 2.)
10 wire
flat Cable
PC
Red
10pin Connector
Connect
PORT3
uP-I/F
10 9
CSN
CCLK/SCL
CDTI/SDA
AKD4440-A
CDTO/SDA(ACK)
2▲
10pin Header
„ Analog Output Circuit
Figure 2. PORT3 pin layout
The DAC of AK4440 outputs analog audio signals through J3 and J4.
C18
R15
560
AK4440-ROUT1
(short)
R17
(open)
R16
(short)
C19
3.3n
J3
BNC-R-PC
1
2 _ROUT1
3
4
5
AK4440-LOUT1
C20
(short)
R18
560
R20
(open)
R19
(short)
C21
3.3n
J4
BNC-R-PC
1
2 _LOUT1
3
4
5
Figure 3. LOUT/ROUT Output circuit
* AKM assumes no responsibility for the trouble when using the above circuit examples.
<KM097204>
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2009/5