RE: What EMI frequencies should I filter to ensure proper operation of the nRF52833?

Nil Orbach — Thu, 04 Aug 2022 13:59:15 GMT

Thank you a lot for your reply and your piece of advice.

Best regards,

Nil

RE: What EMI frequencies should I filter to ensure proper operation of the nRF52833?

ketiljo — Thu, 04 Aug 2022 13:57:25 GMT

Unless you are using switching regulators that are improperly filtered, there shouldn't be any need to have additional filtering. Maybe a ferrite bead in the nRF52833's and the PA/LNA power supply.

SInce you meantion a PA/LNA, be aware that the highest output power you can use for BLE in Europe is 10 dBm.