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    Resources for Sigma-Delta PLL design

    Dear All :
    Does any have experiment do sigma-delta Pll ,Does any one have the
    behavior model ,like Matlab or verilog-A . Or other document or scehamatic ? Thanks

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    delta sigma pll

    http://www.designers-guide.com/links.html

    www.circuitsage.com

    and search papers on IEEE Xplore website. including the classical one by Riley, Copeland and Kwasniewski

    You can also take a look at the Synthesizer course notes on Professor P.Allen's website at Georgia tech. don't have the link handy now.

    have fun and give feedback so that all can benefit.



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    sigma-delta pll

    DO you how do that franctional counter ,
    How do you do that , Using Gate-level method , or
    coding ..or do you have the VHDL or veriolg Code .
    Thanks



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    notes on design of sigma delta divider for pll

    P.E. Allen (professor
    Georgia tech)

    Synthesizer design course.

    Also see (aicdesign.org)



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    sigma delta modulator pll

    Anyone has VHDL code for this function?
    Please....



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    sigma delta spread spectrum

    Me ,too , I need it . Becasue it;s very difficlut for me .


    Note!
    No me too's here. Be careful when posting!


    --
    mw



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    delta sigma modulator pll




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    sigma delta pll dissertation

    For long term relief.

    http://www.opencores.org



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    how to design delta sigma in frac pll

    Quote Originally Posted by mitchell
    Dear All :
    Does any have experiment do sigma-delta Pll ,Does any one have the
    behavior model ,like Matlab or verilog-A . Or other document or scehamatic ? Thanks
    sigma delta PLL use in RF frequency synthesis ???



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    sigma delta phase locked loop

    Hello,

    If you have access to ADS, you can download a sample Ptolemy model for analyzing the sigma delta Pll ( PLL_SigmaDelta_prj) from Agilent website first see this:

    Phase Locked Loop Design--
    Analysis of a Sigma-Delta Modulator Using RF
    Behavioral Modeling and System Simulation By Andy Howard

    here is the address:
    http://eesof.tm.agilent.com/pdf/adv_rfic_paper02.pdf

    Regards,
    Rose

    PS -Dr. Perrott's PhD thesis is also available from his MIT website.



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  11. #11
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    delta-sigma pll

    Dear andy2000a :
    The sigma-delta Pll in the RF-synthesis . It 's will
    apply in silicon-tuner for DVB ..



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    sigma delta modulator to pll

    Hi,

    you can find a complete SD PLL project in VHDL under

    users.cybercity.dk/~bse1977/phd

    bmalp98



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    sigma delta pll mit

    I simulate the Sigma Delta modulator in Verilog, It produce a time-b(t) table. then it is included into the Hspice netlist file, using a behavior counter, the whole fractional PLL can be simulated within one day.
    This may be the most accurate,while not very time consuming method. especilly the nonlinearity of PFD, ChargePump,VCO etc can be simulated accurately.



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    pll + delta-sigma

    perrott's web site:
    very useful for fractional pll design:
    http://www-mtl.mit.edu/research/perrottgroup



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    matlab + sigma delta + pll

    Who can tell me the details about Sigma-Delta PLL?
    What is the difference between CP PLL and this one?
    Thanks



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    mit sigma delta clock generation

    people people !!

    check perrott's web site at MIT

    he has software that is free and downloadable that can be run in windows.

    it is a fast behavioral simulator for simulating sigma delta pll's, clock and data recovery blocks and even GMSK modulators.

    he has all the details there, examples on each application, step by step analysis and also a manual.

    all you need to know for behavioral simulation is there.

    apart from that, for transistor level implementation you will have to look elsewhere in IEEE papers for implementations of each circuit block.

    this should at least get you started.

    Although he did not invent the sigma delta PLL, he has a tutorial on it.

    http://www-mtl.mit.edu/research/perrottgroup/tools.html



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    fractional pll delta sigma modulator

    as I know RF chip use sigma-delta PLL by analog ..
    not by RTL code (maybe RTL code can coding) ..
    how about sigma-delta PLL frequency range ?



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    perrot phd dissertation divider

    What is the differentce about sigma-delta Pll
    and the common pll?



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    mit fractional pll sigma

    the common PLL in integer N PLL which in the divider divide by integer values
    but in fractional N the divide can divide by fractions so u can use the same reference frequency and the same bandwidth and get high frquncy than integer N

    but the the phase noise of such PLL is worth than integer N , so we use a sigma delta modulator and phase accumulator to control the fractional divider to shape the noise performance to get less phase noise

    check MIT and p Allen courses , they are very usefull

    i wish this can help

    khouly



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    adv_rfic_paper02.pdf

    hi,
    The main reason for going to frational n pll is to increase reference frequency by fixing output frequeny.This will increase the pll bandwidth and its speed

    fractional divider increase the spurious noise to supress this noise we will use delta sigma modulator or phase interpolation technique to supress these noise

    fractional n pll are faster than integer and phase noise performance will be comparable with integer pll



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