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The meaning of Fdata, Fdacclk(etc..) in the AD9122 datasheet.

Question asked by JeonKihyeon on Jul 3, 2013
Latest reply on Jul 3, 2013 by YiZ

Hi.

 

1. What is meaning Fdata?

    Is DCI? If not what Purposes used?

 

2. I'm designed like below.

       I want to use the 75MHz outputs.

       REFCLK is 75MHz.

       Input data is 16bit data of 15MHz sine wave.(Generated by FPGA)

 

3. So i setting like below.

       PLL loop divider is 16.(N1)(For Fdacclk = 1.2GHz)

       PLL VCO divider is 1.(N0)(For Fvco = 1.2GHz)

 

4. I don't understand Fnco and Fcarrier.

       Fnco and Fcarrier, What are the proper way to calculate?

 

 

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