sarthak
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Posts: 10
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I am trying to run PSS simulation for injection locked oscillator but sometimes I get convergence issues. I tried changing the integration method to gear2 and adding cmin=1f but still getting convergence error. Could anyone explain the possible reason for it? The beat frequency is 50MHz (same as injection frequency) and oscillator frequency is 5GHz. I am using tstab=100ns. I am using the following settings for PSS: start = 100.205 ns outputstart = 0 s stop = 120.205 ns period = 20 ns maxperiods = 25 steadyratio = 100e-03 step = 120.205 ps maxstep = 50 ps ic = all useprevic = no skipdc = no reltol = 100e-06 abstol(V) = 1 uV abstol(I) = 1 pA temp = 27 C tnom = 27 C tempeffects = all errpreset = conservative method = gear2 lteratio = 3.5 relref = sigglobal cmin = 1 fF gmin = 1 pS
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