Apr 9, 2007 #1 E evence Newbie level 3 Joined Mar 23, 2007 Messages 4 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,298 stability ratio 1) PLL Natural Frequency <=Hsync Frequency/PLL Stability Ratio 2)PLL Natural Frequency = square root[(Ip*Kvco)/(Ct*N*P)] Ct=0.082uF Ip=charge pump current N=PLL Divide Ratio P=Post Divide Factor* pi=3.14 Kvco=MHz/V Can anyone tell me the meaning of PLL stability ratio ?? Why stability ratio is defined by Nature Frequency instead of cut off frequency??
stability ratio 1) PLL Natural Frequency <=Hsync Frequency/PLL Stability Ratio 2)PLL Natural Frequency = square root[(Ip*Kvco)/(Ct*N*P)] Ct=0.082uF Ip=charge pump current N=PLL Divide Ratio P=Post Divide Factor* pi=3.14 Kvco=MHz/V Can anyone tell me the meaning of PLL stability ratio ?? Why stability ratio is defined by Nature Frequency instead of cut off frequency??