parameter description default value units sa signal amplitude volts or amps oc offset constant fm modulation frequency 1/tstop hz rc carrier frequency 0.0 hz td signal delay 0.0 seconds
The shape of the waveform is described by the following table:
time value 0 to td 0 td to tstop sa . {oc + sin(2 . fm . (time - td ))} . sin(2
This function applies only to transient analysis, where time is the running variable. When referring to default values, tstep is the printing increment and tstop is the final time in transient analysis</a>. This function is a work-alike to the similar function found in HSPICE.
If this function is used bare and not part of an expression in a voltage or current source, then the general source instance parameters prm1 etc. map as below. It is possible to read and alter these values using the special vector @device[param] construct, or with the alter and sweep commands. However, there is no sanity checking so bad numbers can cause wild behavior or worse.
prm1 sa prm2 oc prm3 fm prm4 fc prm5 td