(-+ -50ppm) 25M active crystal. Provide PDF circuit diagram and STM32 test program. Output signal interface: SMA female Note: 1. Can use 3.3v pin power supply, the power supply can provide current not less than 500mA. 2. The typical power supply is 5v. Output frequency range: ADF4351: 35M-4400M (4.4G). Control mode: three-wire SPI. Lead out control pin and lock status pin. All functions can be realized, including point frequency, frequency sweep and frequency hopping, step can be 1K, low frequency step can be 0.1K, according to the crystal frequency decide. Specifications: 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 frequency division (square wave) Output Signal Interface: SMA female Default + -50ppm 25M import active crystal; Provides PDF circuit diagram and STM32 test program Control: three-wire SPI, lead control pin and lock status pin. It can achieve all functions, including point frequency, sweep frequency and frequency hopping, stepping up to 1K, low frequency step up to 0.1K, according to crystal frequency. Colour:Black Material:PCB Size:7x4x1cm Package Contents: 1 x RF Signal Generator Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.