Jul 30, 2009 #1 hmsheng Full Member level 4 Joined Dec 17, 2003 Messages 219 Helped 26 Reputation 52 Reaction score 10 Trophy points 1,298 Location China Activity points 1,556 prescaler 1/10 A phase switching prescaler is used in my PLL. The 4 phases generated by a divide-by-2 can't be matched perfactly. So fractional spurs at Fref/4 and its harmonics is large. Is there any way to overcome this problem? Thanks hmsheng
prescaler 1/10 A phase switching prescaler is used in my PLL. The 4 phases generated by a divide-by-2 can't be matched perfactly. So fractional spurs at Fref/4 and its harmonics is large. Is there any way to overcome this problem? Thanks hmsheng