AKD4344-A Datasheet, PDF (6/34 Pages) Asahi Kasei Microsystems – 24bit and 96kHz DAC with DIT for portable and home audio systems

[AKD4344-A]
The function of the toggle SW
[SW1] (AK4344-PDN): Resets the AK4344. Keep “H” during normal operation.
The AK4344 should be reset once by bringing SW1 “L” upon power-up.
[SW2] (AK4112B-PDN): Resets the AK4112B. Keep “H” during normal operation.
The AK4112B should be reset once by bringing SW2 “L” upon power-up.
Analog Output Circuit
The DAC of AK4344 outputs analog audio signals through J3 and J4.
C13
22u
R7
220
AK4344-LOUT
R9
10k
J3
BNC-R-PC
1
C100
1n
2_LOUT
3
4
5
C17
J4
22u
R12
BNC-R-PC
220
AK4344-ROUT
1
2_ROUT
3
4
R13
C101 ⁵
10k
1n
Figure 2. LOUT/ROUT Output circuit
* AKEMD assumes no responsibility for the trouble when using the above circuit examples.
Serial control
The AKD4344-A can be controlled via the printer port (parallel port) of IBM-AT compatible PC. Connect PORT4
(uP-I/F) to PC by 10-line flat cable packed with the AKD4344-A. Take care of the direction of connector. There is a
mark at pin#1. The pin layout of PORT4 as shown Figure 3.
PORT4
uP I/F
2
10
Red
1
9
Figure 3. PORT4 pin layout
<KM087902>
-6-
2007/07