Hello, I'd like to simulate a very simple circuit, an active lowpass filter. But I think I'm doing something wrong with my AOP, because ngspice cannot load the netlist:
-- $ ngspice 78 -> source ./spice.net Circuit: * gnetlist -g spice-sdb -o spice.net lowpass.sch Error on line 134 : u1 0 1 vcc vss vout lf353/ns Unable to find definition of model vss - default assumed unknown parameter (vout) -- The model for the AOP can be found here: http://www.national.com/models/spice/LF/LF353.MOD and the schematic is here (gschem screenshot): http://bit.ly/bO68qA all the files are here (.tgz): http://bit.ly/cbC6rJ The AOP has the following parameters: device=AOP-Standard value=LF353/NS model-name=LF353/NS (as found in the .mod file) I've added a spice-model-1.sym to include the .mod file (as shown in the screenshot). Do the parameters for the AOP seem to be right ? In the .mod file, the pins are 1, 2, 99, 50, 28. They are in the same order as in the schematic but the number don't match. Is that ok ? Why isn't my simple lowpass filter working ? Thank you for your attention, Fabio _______________________________________________ geda-user mailing list [email protected] http://www.seul.org/cgi-bin/mailman/listinfo/geda-user
