How does Cadence calculate Noise Figure?

Status
Not open for further replies.

haadi20

Full Member level 1
Joined
Feb 22, 2005
Messages
99
Helped
15
Reputation
30
Reaction score
4
Trophy points
1,288
Activity points
2,172
how does cadence get noise figure

Does anybody know, how Cadence calculates the Noise figure of a mixer circuit ? The plotted noise figure i get after Pnoise analysis is absurdly high as 70dB....

However, when i use the following formula to calculate the noise figure myself (by plotting Nout, Nin and Gain separately), it is around 20 dB.

NF= Nout-Nin-Gain

Any comments or help would be appreciated..!!

Regards
 

Status
Not open for further replies.
Cookies are required to use this site. You must accept them to continue using the site. Learn more…