Switching frequency of DC/DC regulator in nRF52832?

RE: Switching frequency of DC/DC regulator in nRF52832?

Håkon Alseth — Fri, 13 May 2016 07:04:03 GMT

Any time that the DCDC is active, it will switch with a frequency of 8 MHz, regardless of TASKS_CONSTLAT or TASKS_LOWPWR.

RE: Switching frequency of DC/DC regulator in nRF52832?

lhsj81 — Thu, 12 May 2016 18:00:43 GMT

Hi, Could I confirm that it's 8MHz, irrespective of whether the system is in CONSTLAT or LOWPRR mode? Thanks, Best regards, Louis

RE: Switching frequency of DC/DC regulator in nRF52832?

abkirchhoff — Fri, 18 Mar 2016 12:31:36 GMT

Thanks for the information. 8 MHz should be well outside the bandwidth of our analog signals. The DCDC will only be used for internal use; I was only worried about radiated noise.

RE: Switching frequency of DC/DC regulator in nRF52832?

Håkon Alseth — Fri, 18 Mar 2016 09:29:39 GMT

Hi,

The DCDC is a buck-regulator, and the switching frequency is 8 MHz. Unfortunately, we do not have any parameters regarding noise. The DCDC cannot be used for anything else than for internal use (on when CPU/RADIO is active) and cannot be tapped out for external usage.

Cheers, Håkon