I'd like to supply the charge pump of the ADF4158 with Vp = 5V (Vdd = 3.3V), but I have the requirement that 5V comes after 3.3V.
It appears as this would violate the specs as per the datasheet:
VP AVDD to 5.5 V
In the Absolute Maximum Ratings there is a statement about Vp relative to Vdd but that doesn't make much sense to me.
So can anybody clarify whether it is allowed for Vp to be ramped up after Vdd?
Just one additional thing. The power supply spec stating Vp = AVdd to 5.5 V probably just refers to the nominal (i.e. working) condition.
That's why I was also looking at the Absolute Maximum Ratings where are two limitations WRT to Vp. The first is: Vp to GND = -0.3 V to +5.8 V; and the second one is: Vp to Vdd = -0.3 to 5.8 V,. But the latter one seems to be very misleading at least.
Clarification on Absolute Maximum Ratings.
[edited by: jensrenner at 11:03 AM (GMT -4) on 2 Aug 2021]