AK4520A Datasheet, PDF (14/19 Pages) Asahi Kasei Microsystems – 100dB 20Bit Stereo ADC & DAC

ASAHI KASEI
[AK4520A]
Figure 8 . Power Supply Arrangement
1. Grounding and Power Supply Decoupling
The AK4520A requires careful attention to power supply and grounding arrangements. VA and VD are usually
supplied from analog supply in system. Alternatively if VA and VD are supplied separately, the power up
sequence is not critical. AGND and DGND of the AK4520A should be connected to analog ground plane.
System analog ground and digital ground should be connected together near to where the supplies are
brought onto the printed circuit board. Decoupling capacitors should be as near to the AK4520A as possible,
with the small value ceramic capacitor being the nearest.
0163-E-00
- 14 -
1997/3