Binary number to Frequency converter

Discussion in 'Homework Help' started by ChuNya, Jun 22, 2010.

  1. ChuNya

    Thread Starter New Member

    Jun 15, 2010
    4
    0
    Good evening.
    I have a tricky problem to solve, so any advice will help.
    I have a circuit that its output is a binary number showed by LEDs (the number represent number of clocks per period, in my case the period is 0.08sec)
    I need to convert this number to frequency (clocks).
    any suggestions..?
     
  2. lightingman

    Senior Member

    Apr 19, 2007
    374
    22
    Hi,

    Check out the CD4089. It may do the trick.

    Daniel.
     
  3. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    It would be helpful to have the range of frequencies.
     
  4. ChuNya

    Thread Starter New Member

    Jun 15, 2010
    4
    0
    the range is from 10hz to 200Hz

    P.S. I need to build the circuit not use an existing component
     
  5. retched

    AAC Fanatic!

    Dec 5, 2009
    5,201
    312
    WhaT?

    Are you saying you want to RECREATE an available ICs function with discrete parts?

    If so, I would start by reading the datasheet for the HCF4089. On page 3 it shows the logic diagram for the function provided by the IC. You could use that to build a discrete version.

    lightingman posted it on post #2
     
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