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The Designer's Guide Community Forum › Simulators › RF Simulators › How to simulate the deadzone of PFD/CP with spectre
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How to simulate the deadzone of PFD/CP with spectre (Read 153 times)
incol
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How to simulate the deadzone of PFD/CP with spectre
Nov 10th, 2010, 5:16am  
Hi

I want to simulate the deadzone of PFD/CP with spectre, can I sweep the difference phase of the two clock input, and plot the average current of the CP?

Thanks!
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raja.cedt
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Re: How to simulate the deadzone of PFD/CP with spectre
Reply #1 - Nov 11th, 2010, 3:42am  
correct but while ding that please terminate charge pump with a proper voltage source.

Thanks.
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incol
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Re: How to simulate the deadzone of PFD/CP with spectre
Reply #2 - Nov 15th, 2010, 11:32pm  
raja.cedt wrote on Nov 11th, 2010, 3:42am:
correct but while ding that please terminate charge pump with a proper voltage source.

Thanks.


Thank you very much. And Do you know how to sweep the phase with spectre, use PSS?
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raja.cedt
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Re: How to simulate the deadzone of PFD/CP with spectre
Reply #3 - Nov 15th, 2010, 11:42pm  
hi,
define some variable td for fbclk. Go to tools in ADE from there parametric analysis. Is this what you are asking or any thing else?

Thanks.
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