• HMC835 HMC1034 HMC988

    Hello,

    Could you please tell me the differances between the HMC835 and HMC1034 and why one should be chosen over the other? The data sheets appear to have very similar specs, but the price of the HMC1034 is almost double. Also I plan to use either the…

  • RE: SPI problems with two different HMC parts

    The HMC987 1K pull-down is necessary on SDO to fix an error in the output driver.  This output is actually an open drain pull-up to 300 ohm instead of standard CMOS drive.  Without the resistor the output cannot drive low.  No clocks are required to access…

  • RE: HMC1034--Reference Clock

    加大功率,或者用方波。

  • RE: Problems about high performance clock generators such as HMC830,HMC831,HMC832,HMC1034,HMC1035

    When operating in 'fundamental' mode (which is >=1500MHz) with HMC830, HMC832, HMC1034 & HMC1035 the output is a sine wave.  When operating in 'divider' mode (<1500MHz) the output is a square wave with nominal 50% duty cycle.

  • RE: How to reset vco sub system in HMC1034?

    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: About VCO Characteristics of HMC1034LP6GE

    The HMC1034LP6GE integrates a wideband VCO sub-system as shown in Figure 5 of the Operating Guide:

    The VCO block in the diagram consists of four VCOs selected with VCO_Reg00h[8:7] control bits.  This allows fundamental frequency operation from 1500MHz…

  • RE: HMC832 PLL

    Both HMC830 and HMC832 will meet these requirements but the application must utilize a tunable reference and manual tuning to meet the -60dBc spurious and hop time requirements.  I've attached an appnote on manual tuning.  With a fixed 50MHz reference Figure…

  • HMC830 Frequency Hopping - Direct LUT ?

    Hello,

    I'm working with the PLL VCO HMC830.

    I want to use a look-up table (LUT) for manual calibration, as decribe in "Frequency Hopping with Hittite PLLVCOs Application Note" (attached) (https : // www . hittite.com/content/documents/application_notes…

  • 【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…

  • 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…