• HMC561LP3 Possible Failure?

    I am currently trying to use  he HMC561LP3 eval board. I am currently driving it with an input on the order of 3.5dBm  at 5GHz with a supply voltage of ~5V (4.9V). I set Vgg to around -1.5V giving a and Idd of 98mA. Under these circumstances the device…

  • HMC561LP3 VGG current

    The datasheet states to adjust Vgg between -2.0 and -1.2V to achieve Idd1 + Idd2 = 98 mA, i want to adjust VGG with a voltage divider so i need to know the Vgg input current to compensate for the voltage drop across my divider.

  • RE: Frequency multipliers input 800-1100 MHz? Footprint?

    Thank you MRichardson.

    I'm still not able to find the footprints for the  HMC561LP3. Do you have any clues?


  • EVB PCB design for Hittite devices.

    Hi all,

    Our customer need detailed layout guideline and PCB stack up guideline for the following devices.

    Are Gerber files available for the evaluation board?






  • HMC637ALP5E Idd vs. Vgg1 && Power Up/Down Bias Sequence Problems


    I have read many questions and answers about the HMC637ALP5E and various application documents.

    And there are three questions:

    1)The same type amplifier e.g. HMC797APM5E provides a relationship between Idd and Vgg1(Representative of a Typical D…