Oh a spike! Gotcha, yes, shunt off extra to ground. Chapter 4.3, you said as much earlier.Nope! noise is from spike and the 3.3V switching regulator. So is not just High frequency pulse.Yeah, I wonder if you can add ferrite beads/cores.
Just add a shunt voltage reference like the LM4040A30I (specifed on the chapter 4.3).
The only difference is that the VRef will be 3.0V instead of 3.3V.
Statistics: Posted by breaker — Mon Jan 01, 2024 2:51 am