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CAP1 and CAP2 rc circuit functionality

Posted: Thu Mar 08, 2018 10:00 am
by damian
I have doubts about the function of the RC circuit connected to CAP1 and CAP2. The only words about it are in ESP32 Hardware Design Guidelines :
Removing the RC circuit may slightly affect ESP32 in Deep-sleep mode
So the rc circuit is involved in the 8MHz internal oscillator used in deep-sleep mode?
If I never go in deep-sleep mode can I leave CAP1 and CAP2 unconnected?
Thanks!!

Re: CAP1 and CAP2 rc circuit functionality

Posted: Mon Jun 25, 2018 9:56 pm
by chris1seto
Hi, I am also wondering about this. Bump!

Re: CAP1 and CAP2 rc circuit functionality

Posted: Sat Jun 30, 2018 8:21 am
by damian
After some experiments I saw that the removal of this RC circuit doesn't affect anything visible (I note that I don't use deep sleep in my application).
However I hope that the functionality of this circuit will be explained in an upcoming release of the official technical documentation.

Re: CAP1 and CAP2 rc circuit functionality

Posted: Fri Aug 17, 2018 6:20 pm
by ESP_krzychb

Re: CAP1 and CAP2 rc circuit functionality

Posted: Wed Aug 29, 2018 12:04 pm
by damian
Thanks krzychb.