Introduction - If you have any usage issues, please Google them yourself
Frequency synthesis technique using the frequency synthesis method to make a (or more) reference frequency, transformation and processing, the formation of a series of equally spaced discrete frequency. Direct digital frequency synthesizer (Direct Digital Frequency Synthesizer) is a frequency synthesizer based on the all-digital technology, the direct synthesis of the desired waveform starting from the concept phase. DDS technology has a short frequency switching time (< 20ns), high frequency resolution (0.01Hz), high frequency stability, frequency and phase of the output signal can be quickly programmed to switch the output phase can be continuously programmable and flexible benefits . The design introduced DDS works on the basis of maxplusII software and FPGA to implement a DDS.