Sinusoidal

General Form:
sin(vo va [freq td theta phi])

Example:
vin 3 0 sin(0 1 100meg 1ns 1e10)

This function can be called as tsin to avoid possible conflict with the sin math function.

parameter	description	default value	units
vo	offset		volts or amps
va	amplitude		volts or amps
freq	frequency	1/tstop	hz
td	delay	0.0	seconds
theta	damping factor	0.0	1/seconds
phi	phase delay	0.0	degrees

The shape of the waveform is described by the following table:

time	value
0 to td	vo + va . sin($\pi$ . phi/180)
td to tstop	vo + va . exp(- (time- td) . theta) . sin(2$\pi$ . (freq . (time- td) + $\pi$ . phi/360 ))

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, see 2.7.10 for explanation. The argument count is used to distinguish this function from the math function of the same name.

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	vo
prm2	va
prm3	freq
prm4	td
prm5	theta
prm6	phi