AD9548

hi,I have a AD9548 evaluation borad and I try to use it to have 10Mhz output,I use 1pps for REFA and 10Mhz for external clock.but the softeware suggests that my REFA is FAULTED and my system clock is always NOT CLKCKED and NOT STABLE, I want to know the possible reasons and how to solve it. Thank you .



I add some images about my question
[edited by: su mang at 3:45 AM (GMT 0) on 25 Dec 2019]
  • 0
    •  Analog Employees 
    on Jan 6, 2020 6:55 PM

    Hi,

    please first ensure that the system clock is stable. Without a stable system clock, you cannot analyze the functionality of the chip.

    Please send me the details of how you obtain the system clock, the schematic you use. Also, please send me the setup file created by the evaluation software.

    Petre