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Capacitors on VDDA and VREFH

Question asked by Giuseppe Modugno on Feb 6, 2012
Latest reply on Feb 8, 2012 by Dekiru

I see two capacitors for VDDA and two capacitors for VREFH pins on TWR-K60N512. They are both X7R chip capacitors, 100nF and 10nF.

What is the reason to use two of them? Is it sufficient to use a single 100nF X7R capacitor near VDDA and VREFH pins of microcontroller?

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