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help on dds programing1

Discussion in 'Electronic Design' started by [email protected], Dec 16, 2003.

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  1. Guest

    i have read ad9830 dds ic datasheet, but i have steel problem how i
    should program it, for example i want to use pararel port for
    interfacing , and for example want 3.1MHZ on out put, how i should
    use D0 to D15 and A0,A1,A2? should i use both freq reg ( 0,1) and
    all 4 phase reg ? or one is enouth?
    any help would be most appreciated
    thanks
    payam
     

  2. What frequency is your clock ? You need a clock that is faster than
    twice your output frequency, though a bit more is recommended.
    10MHz ? 20MHz? 50MHz?

    Rene
     
  3. Leon Heller

    Leon Heller Guest

    I've got some code on my web site for the AD9850 that should help.

    Leon
     
  4. SioL

    SioL Guest


    Interesting, I'm just starting my work on 2104. Just got the proto board from Nohau.
    I saved the link for the first chance I get to work on it.

    SioL
     
  5. Guest

    my oscilator is 50mhz!
    thanks
     
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