• HMC1034--Reference Clock

    给HMC1034的时钟信号在20MHz以下时,经常失锁,是什么原因?有没有对参考时钟信号的最低频率要求?

  • 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…

  • How to reset vco sub system in HMC1034?

    There is a problem in my project when using HMC1034 as a ADC Clock to generate 996MHz and 640MHz. When the temperature raised high to +80℃, Power up HMC1034, the PLL fail to lock and the vco subsystem do not react when control through Reg 05H.

    Read the…

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

    Hello,

    I am looking for a proper clock generator at about 2.0GHz or 2.5GHz for an high speed acquisition system with e2v ADC EV10AQ190 which requires a sinewave sampling clock with jitter<150fs and clock duty between 48% and 52%. When choosing the clock…

  • 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…

  • Part process

    Hello, 

    I am trading several components that do not have process or reliability data on the wafer fab page. I was wondering if I could have the process used to manufactuer the LT3045, LTC6957 and HMC1034. 

    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…

  • 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…
  • HMC1033

    Dear:

    I have a question about the following passage in the Clocks & Timing ICs Evaluation Kit User Manual.

    "The HMC1033/HMC1035 evaluation board includes a precision PLL which generates a 50 MHz

    clock locked to an externally supplied 10 MHz…

  • HMC1033开发板的外部时钟如何输入

    Dear:
    手册中这样写:
    "The HMC1033/HMC1035 evaluation board includes a precision PLL which generates a 50 MHz
    clock locked to an externally supplied 10 MHz reference. The PLL design is an HMC1031 phase/
    frequency detector, passive loop filter and a low noise…