I am using AD5940 for wearable equipment.To minimize battery consumption, it is controlled by turning the power on or off.At that time, communication with the AD5940 is not possible.
Of course, I know HIBERNATE mode, but I'm trying to proceed with power control first.
Looking at the datasheet, I can't find anything about the power-up sequence.
Please answer my question.
Check out the system Initialization section in the datasheet. This initialization sequence needs to be done when the AD5940 is powered up. DVDD should be powered on before IOVDD and AVDD
Unfortunately, IOVDD, DVDD, and AOVDD are bundled together on the current PCB.
Therefore, separate power control is not possible.Could the above connection be problematic?
No, that should be fine. Just be sure to run the initialization after power up.
I got same issue. Trying to find the system initialisation section in the datasheet.
Where exactly is that section? Could you point me out the page?
It is on Pg 29.