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DAC3484 fundamental vs. image

Izik
Expert 1585 points
Other Parts Discussed in Thread: DAC3484

Hello 

Using DAC3484. What is the phase of the image signal comparing to the fundamental? Suppose my output is 100MHz, my REF is 960MHz, so the image is on 800MHz. So what would be the phase of 100MHz comparing to the phase of 800MHz signal? 

Thanks

  • 0
    TI__Guru* 91947 points

    Izik,

    What is the DACCLK and DATACLK rates? What is your input tone? What is your interpolating factor? Are you using the complex mixer? If so, what is your NCO value? All of this info is needed to answer your question. What are you referring to when you say REF is 960MHz? Is your final DAC output a 100MHz tone?

    Regards,

    Jim