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02/21/12 13:16
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 		 #186100 - Too Bad...
Responding to: ???'s previous message
Too bad the input frequency range is so low. If it was in the 1-5 MHz range there are nifty little 8-pin ICs that can up convert by pin selectable ratios. Sometimes two of these can be used in series to attain other net up convert ratios.

Michael Karas


List of 52 messages in thread
TopicAuthorDate
frequency multiplier x 10            01/01/70 00:00      
   You need some specs first.            01/01/70 00:00      
      and even more questions for your tutor            01/01/70 00:00      
   Analog solution...            01/01/70 00:00      
      Input wave form            01/01/70 00:00      
      Too Bad...            01/01/70 00:00      
   have you considered a "rate multiplier"?            01/01/70 00:00      
   PCA?            01/01/70 00:00      
      PCA Yes            01/01/70 00:00      
   Update            01/01/70 00:00      
      2 i.c.s plus 6 R, C            01/01/70 00:00      
      4046 / 7490            01/01/70 00:00      
      I put my bet in the digital solution            01/01/70 00:00      
         digital solution            01/01/70 00:00      
            MCU / CPLD            01/01/70 00:00      
            Simple digital solution...            01/01/70 00:00      
               Engine too fast            01/01/70 00:00      
                  it could be made simpler            01/01/70 00:00      
                     cute            01/01/70 00:00      
               OR            01/01/70 00:00      
   Frequency Multipiler            01/01/70 00:00      
      Motivation?            01/01/70 00:00      
         Motivation ?????????            01/01/70 00:00      
            Motives            01/01/70 00:00      
               OK            01/01/70 00:00      
                  motivation guess            01/01/70 00:00      
                     I had the same feeling...            01/01/70 00:00      
                        and if you looked at any of his previous posts ...            01/01/70 00:00      
   A number of thins concern me ...            01/01/70 00:00      
      answers            01/01/70 00:00      
      Boring...            01/01/70 00:00      
         And in this case...            01/01/70 00:00      
            Yes ... but ...            01/01/70 00:00      
               Making what you need, from what you can get..            01/01/70 00:00      
                  slogans            01/01/70 00:00      
                  Is that what the display needs?            01/01/70 00:00      
                     10-700 Hz is expected output frequency - not input frequency            01/01/70 00:00      
                        I did make one mistake            01/01/70 00:00      
                           old rpm analog (or digital) display is what they have            01/01/70 00:00      
                              bursts...            01/01/70 00:00      
                                 See LM2917 for ancient tacho examples            01/01/70 00:00      
   PLL            01/01/70 00:00      
   More detail?            01/01/70 00:00      
      Yes, more details, please...            01/01/70 00:00      
         Details            01/01/70 00:00      
            This can have to do ...            01/01/70 00:00      
               sharp edges            01/01/70 00:00      
                  Which phase-detector?            01/01/70 00:00      
               re: this can have            01/01/70 00:00      
                  What I would do...            01/01/70 00:00      
                     Very Low Frequency            01/01/70 00:00      
                        Give it a try...            01/01/70 00:00      

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