在仿真晶体振荡器时出现了一些问题。振荡器tran分析时正常起振,但进行PSS+Pnoise仿真时出现错误,给出的错误原因如下: ERROR (SPCRTRF-15052): The user-provided period (frequency) estimate appears to be too short (high). This can be due to any the following reasons:
1, the estimate was wrong.
2, the oscillator did not start properly.
3, the numerical damping reduced signal amplitudes
但PSS换成traponly时不会报错(改之前用的gear2only),但Pnoise曲线异常。但振荡器做减幅振荡时,后续稳定在一个非常小的幅度振荡,此时PSS+Pnoise(使用gear2noly)分析时,PSS仿真不会报错。
请问各位大佬这是啥情况啊?