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https://designers-guide.org/forum/YaBB.pl Design >> RF Design >> Period Jitter https://designers-guide.org/forum/YaBB.pl?num=1698585514 Message started by sj156.lim on Oct 29th, 2023, 6:18am |
Title: Period Jitter Post by sj156.lim on Oct 29th, 2023, 6:18am Dear All, I have questions about period jitter As far as I know, there are two formulas for obtaining period jitter. I've attached a image to make it easier to see the formula below. 1. sqrt(2*L(Δf)*(Δf)^2/fc^3) 2. (T/2pi)*sqrt( integ(4sin(pi*T*f)^2 *(2*L(f)))df ) Does anyone happen to know what the difference is between the two and what expressions should be used in a normal PLL Best regards, Sangjin |
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