VDD_AM on ST25R3916

[ignacio]

Hi,

It may be a *** question but, im quite sure i read time ago that on VDD_AM pin the 2u2 cap must not be place at one sccenario, but now im not able to find where i read that info and also i dont remember which was the scenario. 

I start to think im wrong, and both caps (2u2 and 10n) must be placed always.

Could someone confirm it?

thanks in advanced

ignacio

[Ulysses HERNIOSUS · Accepted solution]

Hi ignacio,

you might be looking for AN5768 (Migrating from ST25R3916  to ST25R3916B) chapter 4 ("Device behavior after power-on and VDD_AM capacitor usage")?

Does that explain the topic to you?

BR, Ulysses

[ignacio]

THANKS ULYSSES!

That was!