How to compute 1/f noise corner

Hi

I've been looking for a spectre expression to automatically calculate
1/f noise corner at where thermal noise and 1/f noise meet after
running pss and pnoise.
Are there anyone have done this?
Thanks

 

[Belal]

Hi,

I use this calculator expression in the outputs:

xmin((phaseNoise(1 "pss-fd.pss" ?result "pnoise-pnoise") + (25 *
log10(xval(phaseNoise(1 "pss-fd.pss" ?result "pnoise-pnoise"))))))

If you are interested, I can write up the derivation for it .
Basically it finds the point of equal contribution to phase noise from
1/f and thermal noise, which is the corner frequency as I understand
it.

Belal

pureck@gmail.com wrote:

Hi

I've been looking for a spectre expression to automatically calculate
1/f noise corner at where thermal noise and 1/f noise meet after
running pss and pnoise.
Are there anyone have done this?
Thanks