I’m trying to include the RAK4630 within our custom boards and I have a doubt regarding the power supplies.
According to the RAK4630’s datasheet, the supplies should follow these specifications:
I’m using the RAK4631 schematic as a reference but I can’t see what’s the connection of the VDD_NRF signal from the RAK4630. Below is the schematic, in green I’ve marked the parts related to the VDD_NRF, R4 and R8 are supposed to connect VDD_NRF to a supply but both are marked as NC (not connected).
I also check these two resistors in a RAK4631 board and they aren’t soldered.
In the RAK4631 board, I also tested continuity between VDD_NRF and every contact in the WisConnector, but no connection seems to exist, so no voltage is being applied to VDD_NRF, is that correct?
Also, there’s a note in the RAK4630’s schematic:
Since the RAK4630 has a metal shield that covers all components, how I can ensure that L10 is not soldered?