Tag: AD9959

4 ch DDS Synthesizer

While I was looking for the methods how to control the multiple antenna beam, I came up with a new idea of using the direct digital synthesizer (DDS).  DDS is a frequency synthesizer used for creating arbitrary waveforms and the frequency, amplitude and phase can be controlled by digital commands. The famous vendor for DDS chips is Analog Devices and this company’s AD series are widely used since 2000’s. One of the famous RF products using this DDS chip is a low cost vector network analyzer (VNWA). With the help of this low cost chip, one German genius whose call name is DG8SAQ could design and fabricate the VNWA below […]