• Controlling AD9911 using Arduino UNO via SPI

    Hi, so I’m relatively new to hardware programming but I’m learning by the day. The project at hand is to control the AD9911 DDS board using the Arduino UNO via the SPI communication protocol. I’d like to first obtain a simple sine wave at the output,…

  • AD9911 SPI programming stopped suddenly

    Hello all,

    I would like to have an advice on how to troubleshoot the AD9911 DDS.

    I wrote an arduino script to programm the DDS via SPI. And the programm has worked many times as proven by the SPI read operation and the RF output as well. However, the…

  • AD9911 Evaluation Board : Crystal use issue

    Hi AD,

    I’m currently using the AD9911/PCBZ evaluation board for prototyping. I succeed to generate the signals that I want in both USB/SPI programming. No problem here.

    However, I would like to use a crystal instead of my frequency generator as…

  • Q. AD9911 Evaluation Board USB EEPROM Programmer > AD9911 Eval Board (32/64-bit) ???

    Hello.

    I installed the USB Eval Board Programmer on Windows 10 64-bit.
    The AD9911 Evaluation Board Flash document has the following statement:

    8. Select "AD9911 Eval Board (32/64-bit)" for "Select Evaluation board to Identify" 

    But I…

  • AD9911

    How does AD9911 Evaluation Software generate FM continuous waves?

    The setup is shown in the figure, but it failed. 

    Please tell me the relevant Settings, thank you

  • AD9911 Evaluation Software

    How does AD9911 Evaluation Software generate FM continuous waves?

    The setup is shown in the figure, but it failed. 

    Please tell me the relevant Settings, thank you

  • AD9911 Frequency Modulation

    I have been working with the AD9911 evaluation board and its respective GUI software for about a week or two now and am pretty familiar with the GUI.

    Currently I linearly sweep option with the modulation type "Frequency" and I believe that this uses…

  • AD9911 Evaluation Software Continuous Sweep

    I am using the AD9911 Eval. Board and eval software to create a linear sweep.  I am using Linear Sweep, and Linear Sweep No Dwell settings. 

    When I drive Pin0 high my tone ramps up to Frequency 01, and then goes back to the original tone decided by "Frequency…

  • AD9911 no output

    We are having difficulty getting any RF output from our circuit using your AD9911. We do have an evaluation board and it works fine, however. In short, I'm using the Single-Bit Serial Mode, with a 25 MHz oscillator driving the reference clock input…

  • AD9911 - auto clear phase accumulator by change in the profile pins

    Dear ADI experts,

    I have been working on the auto clear of the accumulator by a change of a profile pin for a couple of days now. The clearing of the phase works well after a high pulse on the IO_Update pin, but not on changes of a profile pin. I really…