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  1. #1
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    decimation factor of a three stage cic filter

    In a three stage cic filter and the decimation factor is 32 , does it means that overall decimation is 32*32*32 ( 32768 )or just 32 only?

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    I search the google found it only 32. For dso in fixed 100MHz sampling clock to adc , can I achieve lower the sampling rate like selecting 1ms , 5ms etc time base by passing adc 8 bit output data to cic filter in adjusting different decimation factor??
    Last edited by lgeorge123; 12th July 2014 at 14:28.

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  2. #2
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    Re: decimation factor of a three stage cic filter

    What do you exactly mean with "three stage CIC"? The decimation factor is the ratio of input to output sampling rate, independend of the CIC order.



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