0 pins are on the high power RF circuit board.Input RF type Prescaler of the Evaluation board.Using the HMC447 search parameter, you can discover variants of the RF Board.PCB is the one that mounts RF Board.
107928-HMC447LC3 Features
0 pins Prescaler Type
107928-HMC447LC3 Applications
There are a lot of Analog Devices Inc. 107928-HMC447LC3 RF Boards applications.