AK4522_12 Datasheet, PDF (13/19 Pages) Asahi Kasei Microsystems – 20Bit Stereo ΔΣ ADC & DAC

ASAHI KASEI
[AK4522]
SYSTEM DESIGN
Figure 7 shows the system connection diagram. This is an example which analog signal is input by single ended circuit. In
case of differential input, please refer to Figure 10. An evaluation board is available which demonstrates application
circuits, the optimum layout, power supply arrangements and measurement results.
4.5 ∼ 5.5V
Analog Supply
10u ⁺
470
470
Format
Setting
Audio
Controller
0.1u
1 VREFH
2.2n
+
2
0.1u
3
4.7u
2.2n
4
0.1u
+
5
4.7u
6
0.1u
7
AINR+
AINR-
AINL+
AINL-
VA
AGND
8 DIF0
9 DIF1
10 LRCK
11 SCLK
12 SDTI
VCOM 24
AOUTR 23
AOUTL 22
CMODE 21
PD 20
AK4522 ^{DGND 19}
VD 18
MCKI 17
DEM1 16
DEM0 15
SMUTE 14
SDTO 13
0.1u
+10u
2.7 ∼ 5.5V
Digital Supply
0.1u
+
10u
5
Mode
Setting
Figure 7. Typical Connection Diagram
Notes:
- When AOUT drives some capacitive load, some resistor should be added in series between AOUT and
capacitive load.
- All input pins except CMODE pin should not be left floating.
M0020-E-02
- 13 -
2012/01