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Quantization noise spectrum (Read 2274 times)
adesign
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Quantization noise spectrum
May 15th, 2012, 9:02pm  
Hi,

In any Nyquist ADC, the quantization noise power is given by VLSB2/12 which is spread across -fs/2 to fs/2.

Could anyone comment on - "why it is limited from -fs/2 to fs/2"?

Thanks,
ADesign
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ywguo
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Re: Quantization noise spectrum
Reply #1 - May 16th, 2012, 2:28am  
Because it is discrete output with sampling clock Fs.

Yawei
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adesign
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Re: Quantization noise spectrum
Reply #2 - May 16th, 2012, 4:12am  
Thanks Yawei
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raja.cedt
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Re: Quantization noise spectrum
Reply #3 - May 16th, 2012, 6:56am  
hello,
When you a sample a signal with Fs sampling rate, frequency components above fs will be fold back into fs. Any real signal is symmetric around fs/2.

Thanks,
Raj.
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