Universal driver for ADF4351
Use STM32F072 discovery or similar board. Connect ADF4351:
+Vin...+5V, CLK...PA5, DATA...PB5, LE...PB3, CE...NC (Board has pullup), GND...GND
Schematic and PCB for prototyping is here: http://e.pavlin.si/2016/01/15/pll-adf4351-prototyping-single-sided-board/