This element is OBSOLETE and is replaced by the Oscillator Analysis Probe (OSCAPROBE) to simulate oscillators, then optimize any number of parameters to achieve the desired oscillation frequency (OSC_FREQ measurement). The details for OSCTPROBE are maintained here for backward compatibility.
OSCTPROBE initiates the tuning mode of oscillator analysis, whereby a circuit parameter is varied such that the circuit oscillates at a specified frequency.
OSCTPROBE is an ideal source in series with an ideal impedance element. The impedance presents an open circuit at all frequencies other than the fundamental frequency of oscillation.
Name | Description | Unit Type | Default |
---|---|---|---|
ID | Element ID | X1 | |
Freq | Target frequency of oscillation | Frequency | 1 GHz |
Par | Tuning parameter(<type>.<id>.<param>) | <type>.<id>.<param> | |
*Par_low | Lower parameter constraint (optional, mks) | ^{[1]} | 0 |
*Par_high | Upper parameter constraint (optional, mks) | ^{[1]} | 0 |
*VpMag | Guess at mag. of probe voltage (not used)^{[2]} | ||
*VpPh | Guess at ph. of probe voltage (not used)^{[2]} | ||
*VpMax | Maximum probe voltage in search (optional) | Voltage | 3 V |
Vsteps | Maximum number of voltage points in search | Voltage | 15 |
*Iter | Max number of iterations for oscillator analysis | 200 | |
*Damp | Convergence parameter for oscillator analysis | 1 | |
*Ftol | Frequency relative tolerance (not used)^{[2]} | 1e-3 | |
^{[1] } Parameter values are entered in MKS units. ^{[2] } Elements designated as "not used" are manipulated by the simulator in the course of oscillator analysis. Their values have no effect on simulation. |
* indicates a secondary parameter
See “Nonlinear Oscillator Analysis” for the theory behind oscillator analysis.
This element does not have an assigned layout cell. You can assign artwork cells to any element. See “Assigning Artwork Cells to Layout of Schematic Elements” for details.