Mar 21, 2006 #1 H holddreams Full Member level 6 Joined Aug 2, 2005 Messages 351 Helped 15 Reputation 30 Reaction score 7 Trophy points 1,298 Location Shanghai Activity points 4,237 About PLL AC model... Can anyone give a PLL AC model? I have searched,but found nothing. Thanks.
Mar 21, 2006 #2 Y yaxazaa Advanced Member level 4 Joined Nov 13, 2004 Messages 117 Helped 5 Reputation 10 Reaction score 2 Trophy points 1,298 Activity points 902 Re: About PLL AC model... What do you mean AC model? Do you mean you want use this to extract stablity parameters? If it's, then just use the open loop transfer function.
Re: About PLL AC model... What do you mean AC model? Do you mean you want use this to extract stablity parameters? If it's, then just use the open loop transfer function.
Mar 21, 2006 #3 M Miguel Gaspar Advanced Member level 1 Joined Mar 6, 2006 Messages 477 Helped 70 Reputation 140 Reaction score 34 Trophy points 1,308 Location Culiacán, Sinaloa, Mexico Activity points 4,971 About PLL AC model... H(s) = Ko Kd F(s)/S/(1+Ko Kd F(s)/s) where F(S) is the transfer function of the 1,2, 3, 4 order filter.
About PLL AC model... H(s) = Ko Kd F(s)/S/(1+Ko Kd F(s)/s) where F(S) is the transfer function of the 1,2, 3, 4 order filter.
Mar 22, 2006 #4 H holddreams Full Member level 6 Joined Aug 2, 2005 Messages 351 Helped 15 Reputation 30 Reaction score 7 Trophy points 1,298 Location Shanghai Activity points 4,237 Re: About PLL AC model... Thank you. Yes ,i want to use the ac model to extract stablity parameters. How can i use the tranfer function in Hspice to do stablity analysis?
Re: About PLL AC model... Thank you. Yes ,i want to use the ac model to extract stablity parameters. How can i use the tranfer function in Hspice to do stablity analysis?
Mar 22, 2006 #5 B bob_lv Member level 1 Joined Dec 19, 2005 Messages 37 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,288 Activity points 1,660 About PLL AC model... you can simulate the transfer function in matlab or mathcad,etc...
Mar 22, 2006 #6 M Miguel Gaspar Advanced Member level 1 Joined Mar 6, 2006 Messages 477 Helped 70 Reputation 140 Reaction score 34 Trophy points 1,308 Location Culiacán, Sinaloa, Mexico Activity points 4,971 About PLL AC model... You can consult the aplication note for the 74HC4046 PLL of philips: www.philips.com, there you can consult the stability parameters that your are looking up for.
About PLL AC model... You can consult the aplication note for the 74HC4046 PLL of philips: www.philips.com, there you can consult the stability parameters that your are looking up for.