EFR32 PA DC feed

by <a href="http://community.silabs.com/t5/Welcome-and-Announcements/Community-Ranking-System-and-Recognition-Program/m-p/140490#U140490"><font color="#000000"><font size="2">Hero Employee</font></font> </a> dasimon on ‎11-03-2016 05:17 AM

Question

At which pins should I apply DC feed for the sub-GHz and 2.4GHz PA of EFR32?

Answer

For the 2.4GHz PA, the DC feed should be applied on PAVDD pin.

 

On the sub-GHz side, the PA DC feed is required through the TX output pins: SUBGRF_OP, SUBGRF_ON.

 

For more details, refer to the EFR32 radio board reference designs.