Tool/software:
Hello,
I read the datasheet for the DP83869HM, which indicates the VDDA1P8 supply is optional. Does anyone know the pros and cons of adding a 1.8V supply vs. not adding one?
I should mention, I have a Point of Load Regulator on my board which produces 1.8V. But the denotation of vdda1p8 implies the 1.8V is an Analog Supply, and therefore should come from an LDO. If I do not have to add a 1.8V LDO supply to my board, I would not, unless there is a defined benefit.
What exactly does the vdda1p8 power, and is that supply sensitive to ripple from a switching regulator?
Thank you in advance.
