• RE: Phase Detector for Ultrasonic Circuit - 30 kHz

    Your best bet would be to use a mixer. The HMC Phase Frequency Detectors were designed specifically for synthesizer applications. Please see the HMC Phase Frequency Detector FAQ.
    FAQ: HMC Phase Frequency Detectors

  • HMC-ALH444-SX and HMC-ALH444 difference

    Hello, dear all!

    please, could you clear a difference between HMC-ALH444-SX and HMC-ALH444


    There are no inform on the www.hittite.com.


  • what is the difference between HMC-579 and HMC-579SX


    what is the difference between HMC-579 and HMC-579SX?

  • HMC-SDD112 and HMC-SDD112-SX


    I don't understand very well the difference between HMC-SDD112 and HMC-SDD112-SX modules.

    Is it about packaging?

    Thank you

    Sandra Gomez

  • RE: HMC981 driving HMC573

    For reference, these are the connections being made to the HMC981:

    • Vdd to 5.5 V
    • Gnd to Gnd
    • Vdig to 3.5 V
    • Vdrain to HMC 573 Vdd
    • Vgate to GMC 573 Vgg
    • Gnd to HMC573 Gnd

    I am currently driving the RF in with a 5 GHz signal.

    HMC 981 Vdrain (connected with…

  • Eval board for HMC-SDD112

    Is there an evaluation board available for HMC-SDD112 SPDT switch? Is HMC-SDD112-SX the eval board?

  • RE: HMC659 biasing sequence

    Hi Kagan,

    Thanks for your answer.
    Is the inquired biasing sequence applicable to all non-self-biased HMC amplifiers that have Vgg1 and Vgg2? Or is it applicable to specific non-self-biased HMC amplifiers? I would like to known it for supporting other…

  • hmc-980


    I would like to use the HMC-980 as an active bias controller for the HMC-1049. I see that there are generic circuits in the HMC-980 data sheet, but do you have a specific one for use with the HMC-1049? Also could you tell me if these two devices…

  • About HMC PLL+VCO with USB control board

    Dear Sir,

    Most of HMC EVB of PLL+VCO with USB control board whether is common for all HMC synthesizer EVB or uni for each ?

    Thanks a lot.

  • RE: Need to cool for amplifier module package ?

    Both the HMC-C004 and the HMC-C016 need to be mounted to be cooled.  As stated in the outline drawing "Bottom to be held at 85 degrees C max.".