Signal Source Frequency Board 35M-4.4GHz ADF4351 Signal Generator Synthesizer Description: The core chip adopts ADF4351 to refer to the official principle to optimize the layout, and the extremely high power flatness in the entire module operating frequency band. Specification: Output Frequency Range: ADF4351: 35M-4400M(4.4G) Output Signal Interface: SMA Female Default + -50ppm 25M active crystal oscillator.Circuit diagram in PDF format and STM32 test program are provided. Control Mode: Three-wire SPI. Lead control pin and lock status pin. All functions can be realized, including point frequency, frequency sweep and frequency hopping, stepping can be 1K, low frequency stepping can be up to 0.1K, according to crystal Frequency to decide. Warm Tip: 1. Can use 3.3V Pin for power supply, the power supply can provide current not less than 500mA. 2. The typical power supply is 5V. Note: 1. Due to the different monitor and light effect, the actual color of the item might be slightly different from the color showed on the pictures. Thank you! 2. Please allow 1-3mm measuring deviation due to manual measurement.