I would like to realize the principles of fractional N PLL, its problems and solutions,
please recommend the reference material which describes those topics in more
details and step by step. Thanks,
I suggest take a look at any e-book available at this site. That will give you a big idea.
I also think that fractional N is not a mystery. You just need to take a look at how those dividers are implemented and how division ratio is dithered. It is a piece of cake.
I also suggest you go MIT website and search for Perrot. He had a few papers pretty good on this topic.
Re: Please recommend the entry-level material of fractionalN
mike_bihan said:
I suggest take a look at any e-book available at this site. That will give you a big idea.
I also think that fractional N is not a mystery. You just need to take a look at how those dividers are implemented and how division ratio is dithered. It is a piece of cake.
I also suggest you go MIT website and search for Perrot. He had a few papers pretty good on this topic.
Re: Please recommend the entry-level material of fractionalN
mike_bihan said:
I suggest take a look at any e-book available at this site. That will give you a big idea.
I also think that fractional N is not a mystery. You just need to take a look at how those dividers are implemented and how division ratio is dithered. It is a piece of cake.
I also suggest you go MIT website and search for Perrot. He had a few papers pretty good on this topic.
Ya, the operation of divder is my problem. I do not know how the accmulator
operates and how sigma-delta modulator work wth divider. I have read several
materials but they didn't give very detailed explaination. So I look forward to the
detailed explaination.
Thanks,
Re: Please recommend the entry-level material of fractionalN
best book is great in terms of mathematical treatments of the PLL
you can look for michael perrot thesis about fractional-N PLL , also you can find it in MIT OCW