damped_sin()

Returns the damped sin value at time point as a real number

Syntax
damped_sin(time, Offset, Amplitude, Freq, Delay, Damping, Phase)

Arguments

Examples

This example assumes that a transient simulation is performed using:
StartTime = 0, StopTime = 3ns, MaxTimeStep = 50ps

1. This expression creates a damped sine pulse repeating periodically every 1ns:
   DsineValue = damped_sin(time, 0, 2, 1e9, 0.05, 0.5, 0)
2. This expression creates one damped sine pulse using default values for the arguments not listed in the function:
   DsineValue = damped_sin(time)
   Offset=0, Amplitude=1, Freq=1/3ns, Delay=0.0, Damping=0.0, Phase=0
   This example assumes that a transient simulation is performed using:
   StartTime = 0, StopTime = 10ns, MaxTimeStep = 10ps
   DsineValue=damped_sin(time, 0.5 V, 2 V, 1.2 GHz, 0.8 ns, 0.2 GHz, 15 _deg)
   The output of this example is shown in Example damped_sin() Output below.

See Also

cos_pulse(), erf_pulse(), exp_pulse(), pulse(), pwl(), pwlr(), ramp(), step()

Notes/Equations

This expression creates a time-periodic sinusoidal waveform at a specified frequency and phase, including turn-on characteristics. It can be used to create a current or voltage damped sinusoidal wave using the ItUserDef or VtUserDef time domain sources. Alternately, the built-in time domain current or voltage source component, ItSine or VtSine can be used.
The output is calculated as follows:

Example damped_sin() Output