ezbentley
Junior Member level 3
analysis pss terminated prematurely due to error
I am trying to simulate a down mixer using pss in spectre. The RF and LO frequencies require a small beat frequency of 35MHz. I have verified the operation of the mixer using transient. However, when I tried to find the 1dB compression point with swept pss, the simulation is extremely slow. And the simulation would stop prematurely after about 3~4 swept pss iterations. The simulation log window did not show any error message and the analog environment would show the status as "Ready" after the simulation terminated. The pss simulation can finish only if I swept no more than 3 points, which is not useful. I even reduce the "number of harmonics" parameter to 1, but it did not help the situation. Using a larger beat frequency would help a lot, but my assignment requires a 35MHz beat frequency.
Has anyone run into similar problem before?
I am trying to simulate a down mixer using pss in spectre. The RF and LO frequencies require a small beat frequency of 35MHz. I have verified the operation of the mixer using transient. However, when I tried to find the 1dB compression point with swept pss, the simulation is extremely slow. And the simulation would stop prematurely after about 3~4 swept pss iterations. The simulation log window did not show any error message and the analog environment would show the status as "Ready" after the simulation terminated. The pss simulation can finish only if I swept no more than 3 points, which is not useful. I even reduce the "number of harmonics" parameter to 1, but it did not help the situation. Using a larger beat frequency would help a lot, but my assignment requires a 35MHz beat frequency.
Has anyone run into similar problem before?