Frequency Synthesizer Module with ADF4351

Module based on chip ADF4351 of the Analog Devices, a broadband frequency synthesizer with a Phase-Locked Loop (PLL) and a Voltage-Controlled Oscillator (VCO). In the module we find also the power system made of LDO regulators, the loop filter, the active crystal oscillator of 25 MHz as a reference source, the SPI serial interface and Power and lock standby LED detector. It also has three SMA connectors, two of which are named: O