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Lets say a PSU supplies VDD for MCU, 3.3V for example, and this VDD has ripples of +-100mV-peak.
What is the problem with that?
Thanks.
So how come my crew found it very important to spend much board space (2 capacitors for each VDD input pin of digital IC) for reducing the ripples?
High ripple currents from high frequency switching regulators can heat a capacitor.From all of the above i understood that ripples are only bad for analog circuits.
(You cant say that ripples heat capacitor which you use for ripples).
So how come my crew found it very important to spend much board space (2 capacitors for each VDD input pin of digital IC) for reducing the ripples?