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Jul 19th, 2019, 4:53pm
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How to calculate phase noise of PLL in cadence? (Read 786 times)
pashtp
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How to calculate phase noise of PLL in cadence?
Jun 20th, 2018, 9:41am
 
I have designed PLL in 90nm and now wants to calculate phase noise for the same. Can anyone suggest steps to calculate it in virtuoso ic 6.1.5?
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sheldon
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Re: How to calculate phase noise of PLL in cadence?
Reply #1 - Jun 20th, 2018, 1:55pm
 
You can use the calculator. Think that the equations are documented
somewhere in the PAKs/app notes. The calculation has been automated
in more recent versions.

The equation is something like,
power spectral density ( absolute jitter)
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pashtp
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Re: How to calculate phase noise of PLL in cadence?
Reply #2 - Jun 20th, 2018, 11:33pm
 
Yes I found phase noise function. In that function what should be the harmonic number, signal dataset and noise dataset? And i need to select vco output waveform right??
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