Estimating the damping factor and the natural frequency

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ericnguyen

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Hi,

I would like to ask: how can you estimate the damping factor and the natural frequency from the plot of the transfer function of a device (say PLL)?

Added after 2 hours 2 minutes:

I actually found the method to estimate those parameter. I uploaded the file just in case anyone wants to reference to it.
 

I need help,please

do you want to the charge bump?
 

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