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› 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 156 times)
incol
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Posts: 2
How to simulate the deadzone of PFD/CP with spectre
Nov 10
th
, 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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Posts: 1516
Germany
Re: How to simulate the deadzone of PFD/CP with spectre
Reply #1 -
Nov 11
th
, 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 15
th
, 2010, 11:32pm
raja.cedt wrote
on Nov 11
th
, 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 15
th
, 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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