• RE: ADF4355-2 close-in frequency independent spur problem

    Yes there is a way, the clock distributor is outputting LVPECL 1600mV and it can be increased to LVPECL 2000mV. Will try it. That is for ADF4355 references, which are LVPECL differential AC-coupled.

    I have tried to sniff the PCB with a crude DIY E-field…

  • RE: My PLL is occasionally losing lock.  Why?

    There are a variety of causes of why a PLL will occasionally lose lock.

    This answer assumes that the user is able to make their PLL lock, but it doens't stay locked.

    The most common causes are:

    1. Poor power and/or signal connections. Be sure that…

  • 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…
  • ADI针对电子测试和测量的RF和微波解决方案,优势在哪?

    RF和微波IC广泛用于电子测试和测量仪器,比如频谱分析仪、网络分析仪、信号发生器和通信测试仪。当无线通信在我们的生活中变得越来越普及,比如4G/5G和物联网,对于它们的测试基准的要求也在不断提高。在ADI针对电子测试和测量的RF和微波解决方案中,重点讨论ADI产品如何融入相关信号链。

    主要挑战和系统设计考虑


    宽动态范围

    最小化RF测试台的噪底(比如相位噪声)对于保持宽动态范围内的测试信号纯度很重要。但是,更多的数字信号处理任务将增加辐射噪声,因此获得干净的信号是个难题。

    宽带宽

  • Baking the AD9951A

    Does this part have to be baked 24hours prior soldering it.

     

    Only packages which exceed the recommended storage conditions should be baked
    before reflow soldering. The AD9951 has a Moisture Sensitivity Level rating of
    3. If the part…
  • Want to use AD9510/11's DLD as our lock alarm, but it may not work properly if the reference disappears. Any solution?

    We want to use the DLD as our lock alarm, but the datasheet  suggests it might
    not work properly if the reference  disappears.
     
    The PLL does not automatically recover if you enable the "loss  of reference"
    detection circuit that…
  • Hardware Interfacing of AD9211 Control Pins

    In datasheet of AD9211(attached below), on page No.23, it is written that "All serial pins(SCLK/DFS, SDIO/DCS) are inputs with an open-drain configuration and should be tied to an external pull-up or pull-down resistor (suggested value of 10 kΩ)".…

  • 【在线研讨会讲义PPT下载】从0Hz到110GHz的全频谱RF信号链

    此次在线研讨会阐释了自收购Hittite Microwave后ADI的全新及扩展的RF能力。我们会举例说明ADI涵盖的更宽频谱范围及其真DC的重要性。信号链外的性能同样至关重要,展示低噪声、高稳定性控制和电源元件如何改善总体RF信号性能,并将讨论完整的信号链示例。

    主要讨论天线到比特和比特到天线,信号链覆盖,即刚才提到的从真正的DC 0 Hz到110 GHz的频谱覆盖。 我会简要介绍其中涉及到的各类设备。

    为什么良好的RF需要良好的电源,大家知道,RF需要干净的电源。然后,最后会和大家讨论“不止是芯片…