[AK2331]
Recommended External Circuit Examples
1) Power supply stabilizing capacitors
Connect capacitors between the VDD and VSS pins to eliminate ripple and noise included in the power
supply as shown below. For maximum effect, the capacitors should be placed at a shortest distance
between the pins.
AVDD
DVDD
C1 = 0.1μF (Ceramic cap)
C2
C1
C2 = 4.7μF (Electrolytic cap)
VSS
LSI
2) External VIN0 to VIN3 capacitor
When inputting an analog signal to the VIN pin, connect a capacitor to adjust the DC offset of the input
signal and the internal operation point in the LSI device. This forms a high-pass filter with fc being
about 130Hz.
VIN0 to VIN3
C
C = 0.01μF
LSI
MS0903-E-00
2008/03
- 15 -
AKM [ ASAHI KASEI MICROSYSTEMS ]
