AK5354_04 Datasheet, PDF (16/19 Pages) Asahi Kasei Microsystems – Low Power 20bit ΔΣ ADC with PGA

ASAHI KASEI
[AK5354]
SYSTEM DESIGN
Figure 12 shows the system connection diagram. An evaluation board [AKD5354] is available which demonstrates
application circuit, optimum layout, power supply arrangements and measurement results.
1 LIN1
PDN 16
2 RIN1
CSN 15
3 LIN2
CCLK 14
4 RIN2
2.2u ^0.1u
+
5 VCOM
2.1 ~ 3.3V Analog Supply
10u
+
1.8 ~ 3.3V Digital Supply
+
10u
AGND
System
Digital GND
6 VSS
7 VA
0.1u
8 VD
0.1u
AK5354
CDTI 13
LRCK 12
MCLK 11
BCLK 10
SDTO 9
Figure 12. System Connection Diagram Example
Micro
Controller
Audio
Controller
Notes:
- Electrolytic capacitor value of VCOM depends on low frequency noise of supply voltage.
MS0054-E-02
- 16 -
2004/12