I received this question from a customer:
I have the similar questions regarding the power sequencing of the ADV7441A HDTV Video Decoder
from Analog Devices:
- What will happen if we ramp up the power supplies in the following (opposite to recommended) order first DVDD33 (+3P3V) and TVDD (+3P3V) then --> DVDD, CVDD, TVDD, and AVDD (all +1P8V)?
- What could be the consequences of that power-supply sequencing?
- How does that affect the functionality of the device (in the long run)?
I believe the customer has already designed the board and just discovered this issue. They'd like to avoid re-design if possible since they already have hardware.