07:01 <mkk_> [Philipp Gühring, skywater-pdk] Does anyone know an opensource tool for noise simulation?

13:51 <mkk_> [yrrapt, skywater-pdk] @Philipp Gühring Ngspice and Xyce have AC noise analysis

15:55 <mkk_> [Philipp Gühring, skywater-pdk] Sorry, I meant crosstalk

15:58 <mkk_> [Kunal Ghosh, skywater-pdk] @ - the issue we are facing is we are not able to extract coupling capacitance for our analog IP's. Once we have that, we need to verify using ngspice/syce

15:58 <mkk_> That's what @Philipp Gühring meant by noise/crosstalk simulation

15:58 <mkk_> @ @Tim Edwards? Anyone?

15:58 <mkk_> Is there a flow/extractor for that?

16:07 <mkk_> [yrrapt, skywater-pdk] Ah OK, so it's parasitic extraction you're looking for. I think magic can do that although I've never used it. If memory serves me there was some issues with the extraction rules that the team were looking at.

16:07 <mkk_> I've also heard good things about FastCap/FastHenry but there's probably a fair bit of work plugging that into magic. Xic has apparently setup the link though so at least there's a template

16:15 <mkk_> [Jon Pry, skywater-pdk] I was able to get it to work a little in Magic. But now that I am doing it with a slightly more complex design it is being all weird again

16:23 <mkk_> [Tim Edwards, skywater-pdk] @Kunal: If you are just looking for coupling capacitance (not a full R-C extraction like @ was attempting), then it is a trivial matter of setting "ext2spice cthresh 0" before doing "ext2spice".