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How can I make a pss simulation converge?

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DamonKim

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How can I make pss simulation converge?

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I want to see the phase noise of Current Controlled Oscillator(Ring Oscillator) output with those choppers.

At first, I tried to do simulation with oscillator blank checked. And then I figured that there should be no other fundamental frequencies with oscillator setting.

So, I unchecked oscillator setting, and then I set my settings shown above.

The CCO output frequency is approximately 1.036MHz.

So, I set beat frequency as 1kHz(GCD) but it failed to converge.

Could you give me any suggestions?
 

Re: How can I make pss simulation converge?

Show me followings.

(1) Results waveforms of initial transient.
(2) Netlist fractions regarding analysis statement and option statement.
(3) Simulation logfile.
 

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