ADF7020 Register Configuration

The chip I use is the ADF7020, which can communicate at 915Mhz. now I want to switch to 460Mhz by setting the vco_band of R1 to 1, and the other configuration remains the same, but it fails.In addition to the hardware adjustments, is there any problem with my configuration?

thanks.

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  • First of all, thank you very much for your reply!
    But I have to say that your configuration is not exactly the same as mine:my crystal frequency is not equal to PFD frequency.According to my understanding, this should not be the cause of the problem. If you have other suggestions, please let me know.

    Thanks again!

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  • First of all, thank you very much for your reply!
    But I have to say that your configuration is not exactly the same as mine:my crystal frequency is not equal to PFD frequency.According to my understanding, this should not be the cause of the problem. If you have other suggestions, please let me know.

    Thanks again!

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