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DIY Hobby projects, diagram, schematic

Electronic Circuits

DIY Hobby projects, diagram, schematic

4046 Ten Times Frequency Multiplier Circuit

electronicecircuits, June 17, 2010August 17, 2023
Ten Times 10X Frequency Multiplier

CD4046 Ten Times 10× Frequency Multiplier Circuit

For 1Hz to 1KHz input range, we design a VCO to cover 10Hz to 10KHz, with some extra range on each end. the VCO output is divided by 10 and then compared to the input signal using the wideband phase detector. The phase-detector output goes to the loop filter and then reaches around and closes the loop by running the VCO. This frequency multiplier uses cd4046 IC.

Ten Times 10X Frequency Multiplier Circuit
PARTS LIST
R1100kΩ
R210kΩ
R36.8kΩ
C11µF
C20.01µF
IC14046
IC27490

In this frequency multiplier circuit, the CD4046 is set up so that the VCO operates at 10Hz 10 10KHz. The output pin (4) is fed back to a ÷10 counter.

CD4046BC micropower Phase Locked Loop 4046 pin configuration
4046 PIN Configuration

When the input frequency is 1/10 the output, lockup will occur.

Ten Times 10X Frequency Multiplier circuit 4046 7490 555Ten Times 10X Frequency Multiplier7490 SN74LS90N 7490N BINARY COUNTER IC pin configuration

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Comments (10)

  1. school grants says:
    June 25, 2010 at 7:20 pm

    My cousin recommended this blog and she was totally right keep up the fantastic work!

    Reply
  2. free government grant says:
    August 2, 2010 at 3:57 am

    Pretty nice post. I just stumbled upon your blog and wanted to say that I have really enjoyed browsing your blog posts. In any case I’ll be subscribing to your feed and I hope you write again soon!

    Reply
  3. hvhai says:
    November 7, 2011 at 10:53 am

    please,post circuit IC 555.thank

    Reply
  4. M Owais Khan says:
    March 27, 2012 at 6:13 pm

    Is this circuit also for audio signals??

    Reply
  5. Nenie says:
    July 8, 2012 at 9:49 am

    the cap across the batetry is a tank it is there to assur that the ripple current is not affected by the internal resistance of the batetrythe cap across the 7805 is a discharge cap, and it reduces ripple voltage Was this answer helpful?

    Reply
  6. net1ders says:
    May 21, 2013 at 6:27 pm

    Hi, I would Like to get the schematics of PWM circuit operating a 20 Ghz frequency 1200 v DC. With an input of 12v DC

    Reply
  7. Mike says:
    December 2, 2013 at 4:50 am

    Will this circuit operate on +12V as well?

    Reply
  8. Rizwan Bhai says:
    December 30, 2013 at 4:40 pm

    HI..

    Reply
  9. minhak says:
    July 10, 2014 at 6:12 pm

    isn’t it posible when Finput is pluse circuit?

    Reply
  10. amartansh says:
    February 14, 2015 at 7:03 pm

    sir,
    i want to use 4046 ic for wireless fm demodulation….but the problem is that maximum free running frequency available with any such ic is only 2Mhz…at this frequency, antenna length required will be very high……i want to demodulate fm of around 50Mhz…plz suggest suitable pll ic for that

    Reply

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