Feb 13, 2012 #1 G gggould Member level 3 Joined Apr 10, 2004 Messages 63 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 532 Hi all, Does anyone know how to set Kvco properly in a fracN PLL system? I understand the PVT/coarse tune/loop BW/spur parts, but is there anything else? Say fref=10MHz with 111mesh DSM, does the Kvco need to be larger than 70MHz?? Please add any parameter if I missed. Thanks gggould
Hi all, Does anyone know how to set Kvco properly in a fracN PLL system? I understand the PVT/coarse tune/loop BW/spur parts, but is there anything else? Say fref=10MHz with 111mesh DSM, does the Kvco need to be larger than 70MHz?? Please add any parameter if I missed. Thanks gggould
Feb 19, 2012 #2 S soroosh_moallemi Newbie level 3 Joined Aug 7, 2009 Messages 3 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Location iran Activity points 1,292 Pay attention that it is not suitable to increase the value of the Kvco. Because it leads make your PLL unstable. try to design your VCO with Kvco as low as possible. have fun
Pay attention that it is not suitable to increase the value of the Kvco. Because it leads make your PLL unstable. try to design your VCO with Kvco as low as possible. have fun