[AK5357]
SYSTEM DESIGN
Figure 4 shows the system connection diagram. The evaluation board demonstrates application circuits, the optimum
layout, power supply arrangements and measurement results.
10u
+
Rch In
Lch In
AINR
AINL
CKS1
VCOM
AGND
VA
CKS0
CKS2
DIF
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
Mode
Control
+
10u
0.47u
PDN
Reset
AK5357
SCLK
MCLK
LRCK
SDTO
+
Analog 5V
Audio
Controller
10u 0.1u
VD
+
10u
DGND
0.1u
Analog Ground
System Ground
Note:
- AGND and DGND of the AK5357 should be distributed separately from the ground of external digital
devices (MPU, DSP etc.).
- All digital input pins should not be left floating.
- The CKS1 pin should be connected to VA or AGND.
Figure 4. Typical Connection Diagram
Digital Ground
Analog Ground
1
2
3
4
5
6
7
8
AINR
AINL
CKS1
VCOM
AGND
VA
CKS0 16
CKS2 15
DIF 14
System
Controller
PDN 13
SCLK 12
MCLK 11
LRCK 10
AK5357
VD
DGND
SDTO
9
Figure 5. Ground Layout
Note:
- AGND and DGND must be connected to the same analog ground plane.
MS0294-E-03
2009/03
- 14 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
