DAC5672 distorted sine out

Discussion in 'VHDL' started by FPGA_guru, Dec 10, 2012.

  1. FPGA_guru

    FPGA_guru

    Joined:
    Apr 10, 2010
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    Location:
    Canada
    Hi All,

    I am trying to generate a simple Sine wave from DAC5672 on my Hsmc daughter card from Terasic . The NCO i am using is from Open Cores , i works fine in simulation as shown in screen shot attached , But when i connect my scope probes i get distorted output screen shot attached .

    When is connect a simple upcounter , i get a Saw tooth wave output as expected .

    Has anyone solved this problem ? is there something i am missing ?


    Regards ,

    Attached Files:

    FPGA_guru, Dec 10, 2012
    #1
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