AK2365 Datasheet, PDF (26/31 Pages) Asahi Kasei Microsystems – dPMR Filterless IF LSI

[AK2365]
17. Recommended External Application Circuits
1) Power supply stabilizing capacitors
Connect capacitors between VDD and VSS pins to eliminate ripple and noise included in power
supply. For maximum effect, the capacitors should be placed at a shortest distance between the
pins.
25 DVDD
C1
C2
26 DVSS
8 AVDD
C1=0.1μF (Ceramic cap)
C2=10μF (Electrolytic cap)
C1
C2
7 AVSS
LSI
2) AGND stabilizing capacitors
It is recommended that capacitors with 1μF or lager be connected between VSS and the AGND
and AGNDIN pins to stabilize the AGND signal. The capacitors must be placed as close to the
pins as possible.
3) BIAS pin
MS1453-E-01
30 AGNDIN
29 ^AGNDOUT
C
AVSS
C
AVSS
LSI
C=1μF (Electrolytic capacitor)
9 BIAS
LSI
R1
AVSS
R1=47kΩ±1%
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2012/10