AKD4730 Datasheet, PDF (2/29 Pages) Asahi Kasei Microsystems – AK4730-100W Evaluation Board Rev.4

ASAHI KASEI
[AKD4730-100W]
„ Operation sequence
1) Set up the power supply lines (Please refer the wiring of “ set up other jumper ”)
Terminal
Name Color
Vp
Red
+12V Orange
GND Black
Supply
Voltage
48V
12V
0V
Items
Note
VP1, 2,3 pins of AK4730
Should be connected
MVDD pin of AK4730,
regulator and so on.
the
Should be connected
All GND of AK4730
Should be connected
Table 1. Wiring of the power supply
Please wire the power supply carefully. (Divide wiring from each power supply)
2) Setup of each clocks to AK4730
The input method of the clocks to AK4730 has two kinds of methods. One method is from the mounted
AK4114, another is from the external inputs. These setting is selected by the jumpers of JP1(MCLK),
JP2(BICK), JP3(LRCK), JP4(SDATA).
(see the following Figures)
JP1
MCLK
JP3
BICK
JP4
SDATA
JP2
LRCK
EXT DIR
JP1
MCLK
EXT DIR
EXT DIR
Figure 2 Clocks input from AK4114
JP3
BICK
JP4
SDATA
EXT DIR
JP2
LRCK
EXT DIR
EXT DIR
EXT DIR
Figure 3. Clock input from the external
EXT DIR
3) The connections of the outputs
Analog signals are outputted to J1(Lch hot), J2(Lch cold), J6(Rch hot), J7(Rch cold). Connect each terminal
to speakers or the measurement equipment.
<KM074904>
-2-
2005/07