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how to sim the time-interleaved sampling by pss and pac (Read 1014 times)
johnny
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how to sim the time-interleaved sampling by pss and pac
Aug 18th, 2016, 7:25pm
 
Hi all,

the pass+pac sim result,why it is not continuous?and the pass+pac result is not correct with the trans sim result.
my design hv several channels,several same frequency clock but different phase how to sim this type using pss+pac?
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thanks!
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Ken Kundert
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Re: how to sim the time-interleaved sampling by pss and pac
Reply #1 - Aug 23rd, 2016, 1:50am
 
You seem to be plotting 5 different transfer functions. You have to ask yourself what each of the 5 transfer functions represent. I bet when you do that you would see that there is no reason to believe they should be continuous.

PAC is a transfer function analysis. If you have some complicated input signal and you want to know how it is affected by your circuit. you would transform the input signal, multiply it by the transfer function, and the inverse transform it.

You would do that with only one of the transfer functions you have shown. Look at the output frequencies to determine which transfer function to use.

-Ken
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