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MT8206<br />
PRELIMINARY, SUBJECT TO CHANGE WITHOUT NOTICE MTK CONFIDENTIAL, NO DISCLOSURE<br />
REQUIRED POWER ON SEQUENCE-1<br />
The following chart shows Power-On sequence of 82-series IC’s. Both 5VSB and DV18A must be supplied when chip is<br />
powered on. DV18A could not be off since booted-up and only turned off by firmware after initialization done. The minimum<br />
duration to keep DV18A alive depends on how firmware initiates chip.<br />
REQUIRED POWER ON SEQUENCE-2<br />
Standby power (SB18V)<br />
Digital main power (DV18A)<br />
Chip reset signal (RESET)<br />
Note 1 : Td < 20ms, this will dependent on LDO type and C value on DV18A<br />
Note 2 : this timing is safe to power<br />
Td<br />
>300ms<br />
June, 2006
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