Is there a minimal reference design for the nRF52840 yet ?

Question

I know the PDK design is available for download, but there are a lot of things on that board which would not be required for a minimal e.g. beacon design 
 I'm looking for a minimal design with USB and NRF and 32kHz + master crystal and any of the other DC to DC that is essential, but nothing else 
 Or... Is it best if I try to work out a design from the PDK and send it to Nordic via their private support system ?

Sigurd · Accepted Answer

Hi, 
 In the Reference circuitry chapter in the product specification you can find 6 different reference designs, each based on what supply configuration you want. The most minimal reference design for the nRF52840 is configuration no.6 . With configuration no.6 you have no support for High voltage mode, DC/DC function, USB or External circuitry supply. When choosing a reference design, you should first figure out what supply configuration you want in Table 1 , and then use the corresponding reference design.