• AD9520-0 PLL locking

    Hi,

    Have anyone working on AD9520-0?

    I need to lock the PLL. What are the steps to do it?

    I am trying it as below but unable to lock it.

    The first parameter passed is the address and second is the value written to it.

         fnClkGenRegWriteSpi(0x0010…

  • AD9520-1 automatic reference switchover

    Hi,

    I'm using the AD9520-1. I want to use the automatic reference switchover.

    REF1 pin = 10MHz system clock.  DC-Coupled

    REF2 pin = 10MHz local oscillator. DC-Coupled

    When I fix the AD9520 to the REF1 pin, it runs fine. When I fix the AD9520 to…

  • AD9520 PLL frequency question

    Regarding the 9520-4, I want to use the 9520 to lock a signal at a far end of about 40Mhz, and come out to generate phase-dependent signals of 160M and 40M. The following figure is the design generated by ADIsimCLK software. Some questions are not clear…

  • Programing ad9520-1 through SPI

    Hello Team ADI,

    I want to program AD9520-1 through my on board controller. can you please suggest me the CLK POL, CLK PHASE and the SPI frame format for programing the PLL?

    I have tried with the eval software it is working well.

    Thanks and Regards,

  • AD9520 VCO direct mode

    Hello,

    I want to know skew value for outputs in VCO direct mode.

    There is skew value for channel dividers outputs in datasheet, but no data for outputs in VCO direct mode.

    Also want to know time delay between outputs which work in VCO direct mode…

  • AD9520 PLL lock problems

    Hi, we're encountering problems  setting up the PLL of a 9520-3 properly. As reference clock, a TCXO with  fref=20MHz is used which directly drives the PFD. The 2GHz VCO is  divided to 20MHz via a 32x-Prescaler, a B-Counter of 3 and an A-Counter  of…

  • ad9520 PLL lock problems

    Hi, we're encountering problems setting up the PLL of a 9520-3 properly. As reference clock, a TCXO with fref=20MHz is used which directly drives the PFD. The 2GHz VCO is divided to 20MHz via a 32x-Prescaler, a B-Counter of 3 and an A-Counter of 4 (P…

  • HMC7044(HMC7043,AD9520) Multi  synchronization

    Q1:

    I want to confirm whether multiple pieces of HMC7044 can synchronize? Is the synchronous signal SYNC or RFSYNC?

    Q2:

    I have two pieces of HMC7044, how do you synchronize? Do you have a plan?

    Q3:

    I have two pieces of HMC7043, how do you synchronize…

  • AD9520同步问题

    你好,请问AD9520有多芯片同步功能吗?SYNC脚是实现一个芯片的多通道同步吗?

  • Some questions about using AD9520

    Hello,I have some questions about using  AD9520 PLL.

    I make a board of AD9520-3 .The REFCLK is 25MHz.The configuration of the PLLare shown below: R=100; N=8000; charge pump is 4.8mA.I design the PLL loop filter by ADIsimCLK as so:

        

    I want the output signal…