May 19, 2011 #1 H hhq414 Member level 1 Joined Mar 30, 2007 Messages 37 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,529 Hi all, How to measure the divider phas noise for a PLL system? Your answer is very appreciated.
May 19, 2011 #2 ckshivaram Advanced Member level 6 Joined Apr 21, 2008 Messages 5,060 Helped 2,150 Reputation 4,306 Reaction score 2,088 Trophy points 1,403 Location villingen (Germany) / Bangalore Activity points 30,088 check this if of any use http://www.circuitsage.com/pll/plldynamics.pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.167.6203&rep=rep1&type=pdf **broken link removed**
check this if of any use http://www.circuitsage.com/pll/plldynamics.pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.167.6203&rep=rep1&type=pdf **broken link removed**
May 19, 2011 #3 H hhq414 Member level 1 Joined Mar 30, 2007 Messages 37 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,529 ckshivaram said: check this if of any use http://www.circuitsage.com/pll/plldynamics.pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.167.6203&rep=rep1&type=pdf **broken link removed** Click to expand... Thank you for your reply! If I want to test the phase noise from a divider, I think I should add a clean input to the divider input and then test the phase noise from the divider output by a spectrum analyzer. Is that right?
ckshivaram said: check this if of any use http://www.circuitsage.com/pll/plldynamics.pdf http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.167.6203&rep=rep1&type=pdf **broken link removed** Click to expand... Thank you for your reply! If I want to test the phase noise from a divider, I think I should add a clean input to the divider input and then test the phase noise from the divider output by a spectrum analyzer. Is that right?
May 19, 2011 #4 ckshivaram Advanced Member level 6 Joined Apr 21, 2008 Messages 5,060 Helped 2,150 Reputation 4,306 Reaction score 2,088 Trophy points 1,403 Location villingen (Germany) / Bangalore Activity points 30,088 Yes you are correct....
May 20, 2011 #5 H hhq414 Member level 1 Joined Mar 30, 2007 Messages 37 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,286 Activity points 1,529 ckshivaram said: Yes you are correct.... Click to expand... If the divider is drived by a VCO which is not so clean, how can I measure the phase noise of the divider?
ckshivaram said: Yes you are correct.... Click to expand... If the divider is drived by a VCO which is not so clean, how can I measure the phase noise of the divider?