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???
05/31/06 11:16
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 		 #117349 - the original
Responding to: ???'s previous message
Simply had a 16 bit look-up table held in rom as the basis of the oscillator.So the output was 16 bits.Most of the work is imvolved in converting that single frequency reference into a variable frequency output, but that is greatly simplified if you just want a single output pulse.

List of 41 messages in thread
TopicAuthorDate
Sine Wave to pulse Converter            01/01/70 00:00      
   a very much simpler idea            01/01/70 00:00      
   In fact            01/01/70 00:00      
      Accuracy            01/01/70 00:00      
         the accuracy            01/01/70 00:00      
            Sinusoidal NCO            01/01/70 00:00      
               the original            01/01/70 00:00      
   if you can live with the delay, then            01/01/70 00:00      
      If all else fails            01/01/70 00:00      
   What about a fast comparator?            01/01/70 00:00      
      Great            01/01/70 00:00      
   Another Idea            01/01/70 00:00      
   It's doable, but why this way?            01/01/70 00:00      
   Zero-crossing detector            01/01/70 00:00      
   one thing nobody's mentioned ...            01/01/70 00:00      
      oh yeah            01/01/70 00:00      
      nco simulation            01/01/70 00:00      
         code            01/01/70 00:00      
      Don't like it            01/01/70 00:00      
         not an OP-Amp ..            01/01/70 00:00      
            What I had in mind            01/01/70 00:00      
               a) and b)            01/01/70 00:00      
               You can...            01/01/70 00:00      
            code            01/01/70 00:00      
               Thanks            01/01/70 00:00      
                  depends on what make of device they are            01/01/70 00:00      
                     GAL16V8            01/01/70 00:00      
                        WinCupl            01/01/70 00:00      
                        GAL16V8 is a bit small            01/01/70 00:00      
                           ispLEVER            01/01/70 00:00      
                              look around for PALASM            01/01/70 00:00      
                                 Mr.Boole invented it when silicon was a            01/01/70 00:00      
                                    it is a teeny bit ancient            01/01/70 00:00      
                                       Yes, it's ancient ... but so am I ...            01/01/70 00:00      
                                          VHDL is waning            01/01/70 00:00      
                                             Fewer vhdl users means.....            01/01/70 00:00      
                                             look at who pays for the articles            01/01/70 00:00      
                                             VHDL vs Verilog            01/01/70 00:00      
                              ispGAL            01/01/70 00:00      
   SGN output            01/01/70 00:00      
      Nope            01/01/70 00:00      

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