Re: [casper] Fwd: Regarding wide band spectrometer ADC adc5g (ADC 5G V2.0 DMUX1:1) casper design error

2017-08-23 Thread John Ford
Can you tell us a bit more? What is your sampling clock frequency? What level are you putting into the ADC input? Can you replot this with frequency on the X axis? It would be good to see if the peaks you see are related to the sampling clock and the input tone in some way, i.e. are they

Re: [casper] Fwd: Regarding wide band spectrometer ADC adc5g (ADC 5G V2.0 DMUX1:1) casper design error

2017-08-23 Thread Xavier Bosch
Hi, It is difficult to say what is going on looking just at this plot. I suggest to include a SNAP block into your design and collect raw data in the time domain, that will give an idea about the signal. You can do an FFT using Python or Matlab and compare with your spectrometer output. Most