• RE: ADI SimPLL and HMC3716 PFD

    This question is moved to RF and Microwave community for assistance. Thanks.

  • 关于HMC3716锁定时间和环路带宽的问题

    最近使用HMC3716与HMC1164做了一个锁相源,运放使用AD8065,HMC1164的二分频输出经过五分频后给HMC3716,鉴相频率1092MHz,使用ADIsimPLL仿真,软件仿真环路可以设置到鉴相频率的十分之一(109MHz),此时仿真的锁定时间为10nS左右。但我实际做出来后,环路带宽大于1MHz后就非常容易失锁,大于2MHz时基本就不能锁定了,但用软件仿真1MHz环路的锁定时间将近15uS,时间太长了,我需要锁定时间小于1uS,请问HMC3716的环路带宽不能设置很宽么,是器件的问题还是我使用的问题…

  • HMC3716 NU and ND output load

    Hi:

    I have a question about the impedance the NU and ND output can drive.

    I understand the two outputs can not be load below 2.5 V. So I was connecting them to a differential amplifier. The op amp used is ADA4625-1.  NU is connected directed to the non…

  • [HMC3716]

    I have a simple question:

    If the frequencie of the input and the LO are diferent, how will the output voltage be? Is the one port sent out a votage meant the difference and the other sent out the phase difference? or what?

    Thanks

  • RE: HMC3716 loop filter question

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • RE: Hittite HMC3716 and HMC4069 availability and datasheet request

    This question has been assumed as answered either offline via email or with a multi-part answer. This question has now been closed out. If you have an inquiry related to this topic please post a new question in the applicable product forum.

    Thank you,
  • HMC984, HMC3716 and SimPLL

    Does the latest version of SimPLL include models for Hittite phase detector HMC984, or HMC3716 and others. If not, when will they be supported? 

  • HMC3716 PFD in adiSimPLL

    How can I simulate a PLL loop with the HMC3716 phase/freq detector in adiSimPLL? The part is not in the chip library. Alternatively, could I define a custom phase detector? I need only phase noise freq analysis, not loop settling in time domain etc, so…

  • HMC3716 loop filter recommendation

    Dear Sir

    Please could you recommend an op amp and loop filter for an HMC3716 with a VCO operating near the maximum frequency of 1.3GHz, tuned for best integrated phase noise? Phase noise of the VCO is approximately:

    -10dBc/Hz@100Hz

    -45dBc/Hz@1kHz

  • HMC3716 PFD Lock In Range

    What is the pull in range of the HMC3716 digital phase freq detector? Is it limited to the 10-1300M? The issue is how accurate the initial VCO frequency needs to be. I will use a reference freq of 1000MHz. If the initial VCO freq error means the HMC3716…