AK8817_09 Datasheet, PDF (16/50 Pages) Asahi Kasei Microsystems – NTSC/PAL Digital Video Encoder

ASAHI KASEI
(4-3) Power Down Sequence/Power up sequence
AVDD/DVDD
PVDD
PDN
RSTN
VREF
10mS(min)
Recover from Power Down state
[AK8817/18]
(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.
AVDD
DVDD
2.7V
PVDD
1.6V
PDN
0.8PVDD
RSTN
VREF
0.2PVDD
10mS(min)
item
Symbol
Min
Typ
RESETN Pulse width pRES_PON
10
Remark: Reset sequence requires clock input.
Max
Unit
msec
Note
Rev.001E
16
2009 / 12