need some help...

Discussion in 'The Projects Forum' started by mtnokh, Sep 6, 2009.

  1. mtnokh

    Thread Starter Member

    Sep 11, 2008
    10
    0
    hey guys how r u all doing? I have a project which asking for building a function generator that has to run for 4 different frequencies....I don't know to to start that....if u guys can give me some steps to begin with I would be really thankful......

    mtnokh
     
  2. Wendy

    Moderator

    Mar 24, 2008
    20,765
    2,536
    You'll need to provide a bit more input. 4 frequencies at once? What kind of waveforms, and signal amplitude?
     
  3. mtnokh

    Thread Starter Member

    Sep 11, 2008
    10
    0
    well it has to run 1,2,4,10 Hz and three kinds of wave (rectangular,square) i really need some help guys....thanks
     
  4. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
    Once again - do the frequencies have to come out all at the same time?

    What are the three waveforms? Possibly square, triangle and sine?

    Any other requirements? Is this a class assignment?
     
  5. Gustav180

    Member

    Aug 25, 2009
    17
    0
    Hello,
    You can do it easy, look at the chip XR2206. This is a complete function generator chip.

    You can do it cheap. Use one CMOS hex inverter as CD4069 and around this you can design a sinewave generator and then square the sinwave and then integrate the squarewave to a triangular wave. All with the same chip.

    You can do it complex, use a PIC-processor and generate the waveforms through a DAC.

    Best regards
    Gustav
     
  6. hgmjr

    Moderator

    Jan 28, 2005
    9,030
    214
  7. mtnokh

    Thread Starter Member

    Sep 11, 2008
    10
    0
    thank you guys so much that was a big help.......
     
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