A magic factor of 14 is most frequently cited in publications and literature when scale the unbounded system random jitter expressed in terms of its root mean square(RMS) value to the bounded peak-to-peak value at the specified system bit error ratio(BER) value of 1E-12. A good example is its use in the dual-Dirac model to calculate system total jitter from an estimated DJ and RJrms. This article tries to walk through the necessary mathematical equation derivations in detail and understand the physical meanings underlying the general statistical models involved.
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