AKD4569 Datasheet, PDF (2/27 Pages) Asahi Kasei Microsystems – Evaluation board Rev.A for AK4569

ASAHI KASEI
[AKD4569]
n Operation sequence
1) Set up the power supply lines.
Name
+5V
HVDD
AVDD
DVDD
VD
AGND
DGND
Color
Red
Orange
Orange
Orange
Orange
Black
Black
Voltage
5V
3V
3V
3V
3V
0V
0V
Contents
Attention
Regulator
JP15 should be shorted and HVDD jack should be
open when the regulator is used.
(Default: JP15 is open.)
AK4569 Headphone amp
JP15 should be open when the regulator is NOT used.
AK4569 Analog
JP4 should be shorted and AVDD jack should be open
when AVDD is supplied from HVDD.
(Default: JP4 is shorted.)
AK4569 Digital
JP14 should be shorted and DVDD jack should be
open when DVDD is supplied from HVDD.
(Default: JP14 is shorted.)
Logic Parts
JP13 should be shorted and VD jack should be open
when VD is common with DVDD.
(Default: JP13 is shorted.)
Analog ground
AGND jack should be always supplied.
Digital ground
DGND jack can be open if JP1 is shorted.
(Default: JP1 is shorted.)
Table 1. Set up of power supply lines
Each supply line should be distributed from the power supply unit.
2) Set-up the evaluation modes, jumper pins and DIP switches. (See the followings.)
3) Power on.
The AK4569 should be reset once bringing SW1(4569_PDN) “L” upon power-up.
4) Serial control
The AK4569 can be controlled via the printer port (parallel port) of
IBM-AT compatible PC. Connect PORT1(uP-I/F) with PC by 10-line
flat cable packed with the AKD4569.
Take care of the direction of connector. There is a mark at pin#1.
The pin layout of PORT1 is as Figure 2.
PORT1
10 ^uP-I/F
GND
9
CSN
GND
CCLK
GND
CDTI
GND
CDTO
GND
NC
2
1
Figure 2. Pin Layout of PORT1
<KM074000>
-2-
2004/02