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???
07/28/10 10:41
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#177498 - Avoid steep filters if ou can
Responding to: ???'s previous message
If you need to capture 400Hz signals, I'm not so sure 1kHz is a good sampling rate.

You should have a low-pass filter to handle signals above 50% of the sampling rate, but with a larger margin between highest frequency you want to capture and the sampling rate you don't need so steep filter.

List of 16 messages in thread
TopicAuthorDate
Digital Signal Processor/Controller novice tips..            01/01/70 00:00      
   EMG ?            01/01/70 00:00      
      EMG            01/01/70 00:00      
         Correct            01/01/70 00:00      
   perhaps a little more detail would help            01/01/70 00:00      
   ARM is a good place to start.            01/01/70 00:00      
   dspic scary?            01/01/70 00:00      
      not always "the plan"            01/01/70 00:00      
   SiLabs has something ...            01/01/70 00:00      
      The Type of Signal..            01/01/70 00:00      
         0-10mV            01/01/70 00:00      
         0-10mV in 8051            01/01/70 00:00      
         Avoid steep filters if ou can            01/01/70 00:00      
         Following Nyquist is the bare minimum            01/01/70 00:00      
            Aliasing            01/01/70 00:00      
               Think about this some more ...            01/01/70 00:00      

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