Please recommend the entry-level material of fractionalN PLL

[hebu]

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,

 

[dinesh agarwal]

you rather have thebook on PLL may be by Best

thebook you can find on thissite itself

 

[mike_bihan]

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.

 

[jfyan]

Re: Please recommend the entry-level material of fractionalN

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.

https://www-mtl.mit.edu/researchgroups/perrottgroup/index.html

 

[hebu]

Re: Please recommend the entry-level material of fractionalN

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,

 

[mike_bihan]

Re: Please recommend the entry-level material of fractionalN

Accumulator is basically first order sigma-delta modulator.

And higher-order modulators are basically same as the one used in sigma-delta DAC.

 

[khouly]

check this

**broken link removed**

khouly

 

[replyanil]

r best and thomas lee are best books
download mit springs (high frequency ckt) 2005,2006

 

[RFDE]

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