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frequency divider

Discussion in 'General Electronics Discussion' started by ester, Dec 4, 2012.

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  1. ester

    ester

    2
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    Dec 4, 2012
    Hi all,
    I need a circuit that can DIVIDE 10 and 100.do you have any circuit.
    I want to use divider in PLL.
     
  2. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
  3. ester

    ester

    2
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    Dec 4, 2012
    Hi Harald
    I want a TR level circuit simulate that with hspice
     
  4. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Sorry, I have no data for this.

    Harald
     
  5. KrisBlueNZ

    KrisBlueNZ Sadly passed away in 2015

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    Nov 28, 2011
    What do you mean by "TR level circuit"?
     
  6. Harald Kapp

    Harald Kapp Moderator Moderator

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    Nov 17, 2011
    Probably a TRansistor level circuit.

    @ester: Do you realize that simulating a divider on the transistor level wil take a n enolrmous amount of time? Also for your purpose (PLL) simulating the divider on the transistor level will give you useless accuracy.
    I don't know Hspice but from what I gather from the internet it seems that Hspice has some digital simulation capability built in. Use that to digitally simulate the divider. Use the analog simulation only for the PLL part.

    Harald
     
  7. Raven Luni

    Raven Luni

    798
    8
    Oct 15, 2011
    Did you mean passing the output to a switching transistor?
    As for dividers, you can find some schematics if you search for my bat detector posts (but I'm too lazy to point you to them). They divide by 8 and 16 but you can substitute for a decade counter like wot Harald said.
     
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