The high power RF circuit board is designed with 0 pins.802.15.4 RF Type from the Evaluation board.Try searching with LTP5903 if you're looking for variants.It is one of the well-known Dust Networks®, SmartMesh®, WirelessHART series RF Board line.
LTP5903CEN-WHRB4B3#PBF Features
0 pins 802.15.4 Type
LTP5903CEN-WHRB4B3#PBF Applications
There are a lot of Linear Technology/Analog Devices LTP5903CEN-WHRB4B3#PBF RF Boards applications.