• AD9522-1 internal VCO problem


    I designed a PCB that includes an AD9522-1 that I intend to use for clock distribution. The supporting circuitry for the AD9522-1 is basically a copy of the AD9522/PCBZ Evaluation Board (which I also use to program the AD9522-1 in my design by means…

  • AD9522-1 REF IN Clock


    Looking for a support on AD9522-1 input reference clock.  We are using singled ended reference clock[one from FPGA, one from oscillator], with AC coupling and AD9522 internal DC offset is off.

    When we probed on the REF_IN pin, there is a -0.4V offset…

  • About unused CLK/CLK# pin of AD9522-1

    I would like to confirm about unused CLK/CLK# input pin of AD9522-1.

    What is the recommended state? (Open, Pul-up,,,)

    Best Regards,


  • AD9522

    ADI工程师,你们好,我想使用AD9522-0 ,输入80M时钟,输出3路40M的时钟,请问我需要按流程配置哪些寄存器呢?我目前配置的寄存器如下:


    "0000","00010100","24"    //Write


  • AD9522


    I'm currently attempting to use the AD9522 Eval to clock my AD9914 Eval. I am using the internal VCO of the AD9522 Eval, but when I externally measure the output signal of my AD9522 I see a different frequency from what the evaluation GUI is telling…

  • AD9522-X Evaluation board


    We interest on AD9522-4 for our design, we get the AD9522/PCBZ  evaluation board to check it.

    my question is regarding this note from UG-077

    " 1. Install the AD9522 evaluation software. Administrative
    privileges are required for installation…

  • AD9522 - driver code ?


    Where can I find driver code for AD9522?

    I tried all downloads in AD9522 page, but seems that nothing contains software source code.

    Thank you,


  • RE: AD9522 and ADISIMCLK not configuring 800MHz Output

    Hi adiup,

    The AD9522-0 has an internal VCO frequency range of 2.53GHz - 2.95GHz. That frequency range does not support an integer divide to create 800MHz at the output. The tool is not letting you set the VCO divider by 1 because of the internal VCO…

  • AD9522 PLL cann't be Locked

    Hi, appreciate your help first

        There are high speed AD, DA, FPGA, DSP and two Clock generation chip AD9522 on the board, one for AD and DA, one for FPGA MGT and DSP.

    The AD9522 schematics are attached as fpga.pdf, and the value of resistors and caps…

  • AD9522 Clock Synthesizer Issue


    I have been programming AD9522 at input frequency 10 MHz and required output frequency 100 MHz. As I am probing Lock Detect (LD) pin, I am getting glitches of about 250 ns at random intervals.

    In another case, I am programming AD9522 at input freq…