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Generating a hanning wave

Question asked by Siddharth on Jul 27, 2016
Latest reply on Jul 27, 2016 by Siddharth

Hi,

          I want to generate a 5 cycle hanning wave using the AD9106 EBZ. There were 2 options, either direct RAM output (storing the sampled data points of the wave into the RAM) or DDS sine wave output amplitude modulated by the RAM output (amplitude modulation of DDS generated sine wave by hanning envelope stored in the RAM).

 

          I tried both options, but I'm not getting the desired output. The direct RAM output gives an output waveform of different frequency and amplitude. In the second option, only first half of the envelope is being used the modulation. What are the registers that should be manipulated to get the desired output?

 

Thanks in advance!!!

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