Fangrui Product Details Features: New And High Quality Made Of High-quality Materials, 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. 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 Activated Crystal Connector Diameter: 6.5 Mm (.) 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 Err