Would you mind if we ask LMK03328?
There is the power up sequence on the data sheet Figure.86.
On the customer's board, the power up sequence of VDD_PLLX, _IN, _DIG=3.3V and VDD_01, -_x are starts up the same timing.
Is there any trouble?
Or we have to proceed the sequence 3.3V -> 1.8V definitely like as Figure.86?(Because, protection diodes connect to each power rail,,,,)