+ Post New Thread
Results 1 to 2 of 2
  1. #1
    Newbie level 6
    Points: 751, Level: 6

    Join Date
    Mar 2009
    Posts
    13
    Helped
    0 / 0
    Points
    751
    Level
    6

    pll bandwidth

    1,
    When designing PLL, it is always said that PLL's bandwidth should be set to be smaller than Fref/10. what's the PLL bandwidth? Is it Wc(open loop unit gain bandwidth), Wn( Natural frequency) or W-3db ( closed loop -3db frequency)?
    2,
    and I know Wc means the frequency where gain=1. W-3db means the frequency where gain decrease 3db. what does natural frequency mean?

    3, If all the parameters are know, like Ich, Kvco, R,C1,C2. How to get Wc, Wn,
    W-3db, Phase Margin, Damping factor. can anyone give the formulars ?

    Regards,

    •   AltAdvertisement

        
       

  2. #2
    Newbie level 6
    Points: 751, Level: 6

    Join Date
    Mar 2009
    Posts
    13
    Helped
    0 / 0
    Points
    751
    Level
    6

    wn 3db bandwidth

    can anyone help me?



--[[ ]]--