nRF52832 clock

RE: nRF52832 clock

Sigurd — Tue, 08 Sep 2020 08:36:45 GMT

You can take look at the this guide, read the "Crystal and load capacitors" chapter, and the Crystal Oscillator Design Considerations White paper.

RE: nRF52832 clock

tang_qianfeng — Mon, 07 Sep 2020 11:21:02 GMT

thanks！Which document can better help me understand clock requirements when use the Radio and Bluetooth？

RE: nRF52832 clock

Sigurd — Mon, 07 Sep 2020 10:53:23 GMT

[quote user="tang_qianfeng"]Whether must need external 32.768 kHz crystal in order to use the Radio and Bluetooth?[/quote]

No, you don't need to use external 32.768 kHz crystal in order to use Radio and Bluetooth. You can use the internal 32.768 kHz RC oscillator. The benefits of using the 32.768 kHz crystal is a bit lower average current consumption.

RE: nRF52832 clock

tang_qianfeng — Mon, 07 Sep 2020 09:15:14 GMT

thank you! another question: Whether must need external 32.768 kHz crystal in order to use the Radio and Bluetooth?

RE: nRF52832 clock

Sigurd — Mon, 07 Sep 2020 08:48:58 GMT

Hi,

You need external 32 MHz crystal in order to use the Radio and Bluetooth.