Features: This ADF4351 signal source development board has well designed circuit board layout. It can be controlled by the upper computer official software. All control pins are leaded out for convenient operation. Default + -50ppm 25M active crystal oscillator.Circuit diagram in PDF formatandSTM32 test program are provided. Three-wire Spilead to control pin and state locking pin, allowing all functions including point frequency sweep and frequency hopping, stepping to 1K, low frequency step can be 0.1K, according to crystal frequency. The control interface of the single chip micro controller for easy controlling independently. It can also control ADF5355. Specifications: Output Frequency Range: ADF4351: 35M-4.4G Power Supply: DC002 Interface DC4-9V(typical 5V) Output Signal: 2.2-4.4G fundamental wave (sine wave), 35M-2.2G fundamental division (squarewave) Signal Output Connector: SMA female Weight: 36g Package Included: 1 x signal Generator 1 x sma holder 1 x USB cable Note: Please note that the new type and old type of this product will be sent randomly, and make sure you will not mind before ordering. .