Analog Devices Inc. EVAL-ADRF5347 Evaluation Boards are designed to evaluate the features and performance of the ADRF5347 1.8GHz to 3.8GHz High Linearity Silicon SP4T Switch. The ADRF5347 are single-pole, four-throw (SP4T) switch manufactured in the silicon process. All components and application circuitry are placed on the primary side of the 8-layer printed circuit board (PCB).