ASAHI KASEI
[AK8817/18]
(4-3) Power Down Sequence/Power up sequence
AVDD/DVDD
PVDD
PDN
RSTN
VREF
10mS(min)
Recover from Power Down state
(4-4) Power On Reset
After Power up, It is necessary to make reset sequence until Analog Reference voltage(VREF) becomes stable.
PVDD/DVDD/AVDD should be power up at same time or 1st PVDD power up and AVDD/DVDD makes up.
2.7V
AVDD
DVDD
1.6V
PVDD
0.8PVDD
PDN
RSTN
0.2PVDD
VREF
10mS(min)
item
Symbol
pRES_PON
Min
10
Typ
Max
Unit
msec
Note
RESETN Pulse width
Remark: Reset sequence requires clock input.
Rev.001E
16
2009 / 12