Hi.

For finding frequency response of a periodically driven circuit using SNAC analysis (of HSPICE-RF in Cadence ADE), we need to use a periodic ac source in the schematic.

So, when I am trying to set the "SNAC magnitude" parameter of "vsin" source in schematic, it is not appearing in the generated netlist (as shown in attached screenshot).
Hence, the SNAC analysis is not giving proper output.

Please suggest what can be the problem that the voltage source parameter entered in schematic is not coming to the netlist?

Hi Geoffrey,

Thanks for your attention.
I have just received an update from Synopsys support that this might be a bug (as they have reproduced the same at their end) and they are investigating it.