• The Output of HMC836 Drop 7dBM After 2-3 Years Intermittent Working.

    Hi, once I use HMC836 as a Local oscillator output 3.6GHz. The circuit schematic is designed following the evaluation board. There is no problem in the previous two years, and the output power is about 2dBm. After a few years, they are generally reduced…

  • hmc836 voltage

    The maximum rating of the HMC836 state that voltage shall be VDDCP VPPCP,VCC1 -0.3V to 5.8V. The specification is given at 5V +/- 4%. Do you have any measurements when the voltage drops to 4.0V ? Could you elaborate on what performance parameters that…

  • RE: "Easy" 3.5GHz clock source for AD9914 evaluation board?

    Hi,

    Here are some of my recommendations:

    1. The AD9914 has an internal PLL in which you could use to generate the required system clock. However, the PLL limits the system clock between 2.4GHz to 2.5GHz because of its VCO. Using the evaluation board, a…

  • TAGS LIST: Clock and Timing

    LTC6953
    LTC6955
    LTC6957-1
    HMC6832
    HMC7043
    LTC6950
    LTC6954
    HMC987
    AD9576
    AD9508
    HMC1035
    HMC988
    HMC1033
    HMC1034
    HMC1032
    HMC1031
    ADN4670
    ADCLK944
    ADCLK950
    ADCLK948
    ADCLK846
    ADCLK954
    ADCLK946
    ADCLK854
    AD…

  • RE: RF OUT of Eval_HMC836LP6CE is too weak

    Besides the mismatch of  the HMC836 bias network and values with the eval board, can it be the wrong(or inproper )    PLL Eval Software's settings that  makes the  output power weak?

  • RE: HMC836LP6CE  REG settings and CONFIGURATION files

    Correction...

    The HMC836 output component values should match the following and the eval board number is 125998-3.  Use the "hmc836_Frac" eval board register configuration file.

    R8=22

    L4=1.5nH

    L1=10nH

    C8=8.2pF

    C29=1.2pF

    C31=not install…

  • HMC836LP6CE的REG设置及RF输出问题

    想利用HMC836LP6CE产生一个3.5GHz的正弦信号，但是根据ADI上面的提供的USER-GUIDE操作时发现完全得不到正确信号，所产生的RF输出正弦波，不仅频率只有大概1.6GHz左右，而且Vpp大概只有15mV，而根据说明书上这个信号的典型值是6dbm，即便最低也有-1dbm，换算成Vpp的话大概是Vpp也有563mV。因此想请教一下有没有用过这款PLL的高手，指导一下。谢谢了！！！

  • Frequency Hopping with Hittite PLLVCO's

    This application note describes how to implement a manual VCO calibration to achieve the fastest settling time with Hittite PLLVCO products.

    Attachments:

  • Recommended regulators for ADI PLLs and VCOs

    PLL Recommended regulator
    Low power standalone PLLs and the ADF4360-x narrowband PLL/VCO family (< 100 mA); e.g. ADF41xx, ADF42xx, ADF4360-x

    Use the ADP150 regulator; good performance, low cost.

    Use…

  • 'Must Knows' about ADI's family of Hittite PLL+VCO and Clock Timing products

    The attached FAQ document provides additional information on the use of the PLL+VCO and Clock Timing family of products.  Specifically,

    the applicable products are:

    HMC820LP6CE             HMC821LP6CE             HMC822LP6CE             HMC824LP6CE             HMC826LP6CE

    HMC828LP6CE             HMC829LP6GE             HM…