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the wave from of input noise in pnoise (Read 533 times)
johnny
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the wave from of input noise in pnoise
Oct 05th, 2017, 7:42pm
 
hi,

im simulating the pss+pnoise, i want to get the noise power of my circuit(a amp gain=A) after the simulation, i plot the output noise and input noise in pnoise analysis, i have a question why the input noise wave form have the highlight bulge and increase while high frequency? other confusion is why the input noise not equal to the output noise/A^2 ?

thanks
joh
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inputnoise.png
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Ken Kundert
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The Spectre

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Re: the wave from of input noise in pnoise
Reply #1 - Oct 5th, 2017, 11:36pm
 
They are probably the flicker noise being up-converted to multiples of the clock frequency.

-Ken
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johnny
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Re: the wave from of input noise in pnoise
Reply #2 - Oct 7th, 2017, 1:19am
 
thanks Ken
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