Features: New and high quality Made of high-quality materials, durable 35M-4.4GHz PLL RF Signal Source Synthesizer ADF4351 Development Board Control mode: Three-wire SPI control pin and le ad lock pin can achieve all state functions, including point scanning and frequency hopping. The step is 1K, and the low-frequency step can be 0.1K, which is determined by the crystal frequency. Specifications: Frequency range: ADF4351: 35M-4.4G, Power supply: DC002 interface DC4-9V typical value 5V OUTPUT SIGNAL: 2.2-4.4G BASE (SINE WAVE) Output signal interface: SMA female Default +-50ppm 25M imported activated crystal Connector diameter: 6.5 mm (approx.) Material: PC+Metal colour: Black Package Contents: 1 x Development Board(Due to different product batches, the appearance may be different, which does not affect use.) Only the above package content, other products are not included. Note: Light reflection 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.