NRF52832: Capacitor at pin DEC2?

[Tobias]

Dear ladies and gentlemen, I can't find this information anywhere. In the datasheet on page 519 - 521, I see that the decoupling capacitor C6 on pin 32 (DEC2) is not mounted in all configurations, but it seems to be mounted on the eval board. When is this capacitor necessary? Thank you and best regards, Tobias

[Håkon Alseth]

Hi Tobias,

The reference design has been adjusted since the release of the nRF52-Preview kit, and since the nRF52 is not in production state at the time of writing this comment; the reference layout may still be subject to change.

We always recommend to follow our latest revision of the reference design: infocenter.nordicsemi.com/.../ref_layout.html

Cheers, Håkon

[Tobias]

Thank you! Regards, Tobias

[oliverhu]

in the new version, the C6 is still not mounted. so it means C6 is not necessary, right?

[Lakerno]

Same question here. C6 is 100Pf in the NRF52 preview DK. but not connected in the reference design/layout. What does this mean?

[Lakerno]

so, this means pin 32 (DEC2) can be left open in my design, and no need for it to be grounded/or connected to any other value. Am I correct? thank you!