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How to plot quantization noise. (Read 2845 times)
dhirajv12
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How to plot quantization noise.
Sep 19th, 2007, 2:51am
 
I have a verilog code of 3rd order Sigma delta Modulator.How can I use the AMS(Cadence) simulator to plot its quantization noise.
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Stefan
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Re: How to plot quantization noise.
Reply #1 - Sep 21st, 2007, 2:06pm
 
For simple quantization noise, just use (input - output). But I think that's not what you want to see when doing Sigma Delta Modulators.
They trade quantization noise (as it's a simple one bit quantizer in common) against sampling speed. So maybe you're more interested in calculation the SNR of the whole modulator instead of the the simple quantizer error.
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