0 pins are on the high power RF circuit board.Input RF type Voltage Controlled Oscillator (VCO) of the Evaluation board.Using the HMC507 search parameter, you can discover variants of the RF Board.PCB is the one that mounts RF Board.
110227-HMC507LP5 Features
0 pins Voltage Controlled Oscillator (VCO) Type
110227-HMC507LP5 Applications
There are a lot of Analog Devices Inc. 110227-HMC507LP5 RF Boards applications.