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Quantization noise of SigmaDelta in MMD (Read 322 times)
Sarig
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Quantization noise of SigmaDelta in MMD
Nov 02nd, 2007, 9:03am
 
Hi,
Question:
in Fractional-N design, what is the Quantization noise size of SigmaDelta modulator.
I know its Q(e)(NTF), but what is the size of Q(e)? how is it relate to the size of N (divider ratio)?
It is understood that for N=100 and changing from 100 to 101 Q(e) will be less then placing predivider by 2 and divide by N=50 changing from 50 to 51.

Thanks,
Erez
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