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the relationship between the sampling rate and the analog bandwidth of AD9361

Hi,

     there is a question confused me for a long time,I will be very appreciate if someone could help me!

     the issue is the sampling frequency how influence the rf_bandwidth?

     we know the max rf bandwidth is 56MHz when the sampling rate is 61.44Mhz.

     but I want configure the transceiver with tx sampling rate 40Mhz,and the rf bandwidth as 56Mhz. If that could happen?

If I want to configure the rf bandwidth as 56Mhz on matter what the sampling rate is,what should I do in my sw code?

     ps. I use the Microblaze NO-OS software running on the KC705 Xilinx platform.

     looking forward to hearing your reply! Thank you!

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  • Hi 

    I  use AD9361.

    I also encountered this problem.
    We work at a transmission rate of 2MS,

    but no matter how much I increase the BW (I checked up to 20M)

    I get a bandwidth of 2M,

    I also use AD9634

    We encountered the same problem, where we were able to solve it by disabling the filters (Register 2) but this is of course not the desired solution

    I would be happy to help.

    Shmuel


    Attached picture - AD9631
    AD9634
Reply
  • Hi 

    I  use AD9361.

    I also encountered this problem.
    We work at a transmission rate of 2MS,

    but no matter how much I increase the BW (I checked up to 20M)

    I get a bandwidth of 2M,

    I also use AD9634

    We encountered the same problem, where we were able to solve it by disabling the filters (Register 2) but this is of course not the desired solution

    I would be happy to help.

    Shmuel


    Attached picture - AD9631
    AD9634
Children