NRF52840QF ANT input impedance

[Andres Merello]

We are using part nRF52840QF (QFN package, not aQFN) as part of new designs as it has the following improvements compared with the nRF52832:

• Output power of +8dbm
• Extended range availability

 

I am writing in reference to the input impedance in order to implement the matching network between the nRF52840QF and our antenna.

We were able to find on the Nordic’s DevZone this information for the aQFN package, but not for the QFN one. Please, find the report attached. Link: What is the input impedance of nrf52840 in different modes - Nordic Q&A - Nordic DevZone - Nordic DevZone

 

Could you please provide this information for the QFN package?

[Simonr]

Hi

The QFAA matching network and BOM resources available here. I don't have the output impedance exactly as that was provided by another user on DevZone in the case you link to. If you really need it I can try to dig some internally, but can't promise anything.

Best regards,

Simon

[Andres Merello]

Hi Simon,

Really need this infomration; then, appreciate if you can dig internally or do some measurements at Nordic and share with the community.

Thanks in advance,

Andrés Merello

[Simonr]

I think all information should be in the uploaded file. If you have follow-ups, please take those in the private ticket you made if there's a need for any information to be private.

Best regards,

Simon