LM565 Project 80 MHz

Discussion in 'General Electronics Chat' started by tonci, Sep 14, 2016.

  1. tonci

    Thread Starter New Member

    Sep 14, 2016
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    I am working on project which contains LM 565 Phase Locked Loop. I have a question about simulating LM 565. Can some one tell me where can I find simulating block LM 565. Can someone suggest me any simulating program. I work with multisim 10 and there is no LM 565 in any library.

    Thank You for answer!

    Tonci
     
  2. tonci

    Thread Starter New Member

    Sep 14, 2016
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    Here is electrical scheme of Phase Shifter working on 80 MHz phaseshift.jpg phaseshift.jpg phaseshift.jpg
     
  3. bertus

    Administrator

    Apr 5, 2008
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    Hello,

    How do you expect an IC with specs of typical 500 kHz to work on 80 Mhz?

    Bertus
     
  4. ci139

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    Jul 11, 2016
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  5. R!f@@

    AAC Fanatic!

    Apr 2, 2009
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    A 500KHz max VCO at 80MHz....?? o_O
     
  6. Alec_t

    AAC Fanatic!

    Sep 17, 2013
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    The OP07 opamp has a closed loop bandwidth of only 0.6MHz :(.
    The LM311 has a typical response time of 200nS :(.
    Neither of these IC's would be suitable for 80MHz working either.
     
  7. hp1729

    Well-Known Member

    Nov 23, 2015
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    The signal going to the OP07 and LM311 is not the VCO output, is it? But yes, 500 KHz is the top frequency of the LM565.
    Given R1 and C1 values in the schematic it looks more in the neighborhood of 100 KHz. Adjustable to 80 KHz? Not MHz. Was that what the OP intended?
     
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  8. Threeneurons

    New Member

    Jul 12, 2016
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    As the others have mentioned, the ICs shown, can't handle that high of a frequency.

    Is 80MHz a typo ? Why 80MHz ?

    What are you trying to achieve ?
     
  9. GopherT

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    Nov 23, 2012
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    Hey, if he wants 80MHz out of a 0.5MHz chip, it should be possible - it just takes practice and hard work. Focus and stop being so negative, People!
     
  10. R!f@@

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    Can I make my 4GHz PC to 40GHz if I keep at it ?
     
  11. GopherT

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    Yes, you can! Stay positive and keep trying. You can't become a world class athlete without practice.
     
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  12. Papabravo

    Expert

    Feb 24, 2006
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    I guess we can all retire rich! I'm in -- sign me up.
     
    Sinus23, absf, R!f@@ and 1 other person like this.
  13. R!f@@

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    Hey ..I am already rich with enthusiasm. :D
     
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  14. GopherT

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    Then you'll achieve 40 GHz in no time.
     
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