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Simulators >> Circuit Simulators >> gain expression for PAC analysis in ADE
https://designers-guide.org/forum/YaBB.pl?num=1245683099

Message started by aNaloG_y on Jun 22^nd, 2009, 8:04am

Title: gain expression for PAC analysis in ADE
Post by aNaloG_y on Jun 22^nd, 2009, 8:04am

Hello All,

Does anyone know how to put output gain expression in cadence ADE for PAC analysis.?
At present I am will plotting it once the PAC analysis is over by selecting the PAC results,but I want to put expression before analysis similar to AC analysis

Regards,
aNaLog_y

Title: Re: gain expression for PAC analysis in ADE
Post by pancho_hideboo on Jun 22^nd, 2009, 8:27am

aNaloG_y wrote on Jun 22^nd, 2009, 8:04am:

Does anyone know how to put output gain expression in cadence ADE for PAC analysis.?

See http://www.designers-guide.org/Forum/YaBB.pl?num=1237656418/3#3

aNaloG_y wrote on Jun 22^nd, 2009, 8:04am:

but I want to put expression before analysis similar to AC analysis.

What do you mean ?

Title: Re: gain expression for PAC analysis in ADE
Post by aNaloG_y on Jun 22^nd, 2009, 8:40am

Hi pancho_hideboo,
In AC analyis if you write gain expression in ADE e.g 20*db20("VT(/<netname>"),this expression will be plotted at the end of AC analysis.
But in PAC,once run is over I need to go and select the PAC results and then plot the gain expression using calculator.

Regards
Ramesh

Title: Re: gain expression for PAC analysis in ADE
Post by pancho_hideboo on Jun 22^nd, 2009, 8:54am

aNaloG_y wrote on Jun 22^nd, 2009, 8:40am:

In AC analyis if you write gain expression in ADE e.g 20*db20("VT(/<netname>"),this expression will be plotted at the end of AC analysis.

Not correct. This has to be VF(). And "20*" is redundant.

aNaloG_y wrote on Jun 22^nd, 2009, 8:40am:

But in PAC,once run is over I need to go and select the PAC results and then plot the gain expression using calculator.

No, you don't seem to be familiar with Cadence ADE.

Choose "ADE>Results>Direct Plot" for both ac and pac with "Add Outputs=On".
Or use result browser for both ac and pac. Then invoke calculator and do "get expression".

In anyway, you can get following expressions in output field.

db20( v("/<netname>" ?result "ac-ac") )
db20( v("/<netname>" ?result "pac-pac") )