• HMC6981

    I am using a voltage divider to provide the negative Vgg required by the amp.

    Would like to check what will the optimum resistor value range (will it be in the hundreds ohm or Kohm range) 

  • HMC6981 biasing with HMC980

    Hello

    Would it be possible to bias the HMC6981 at the 6.5 V level by using a HMC980? I have configured in HMC980 the resistors to that RDS gives 6.5 biasing to the amplifier at VDRAIN but it requires a 7V VDD due to the voltage drop. This makes for a…

  • HMC6981

    Hi, 

    Can I check what will be the recommended op amp part number for the temperature compensating circuitry in the datasheet?

  • HMC6981 VGG bias setting.

    The HMC6981 have two VGG pins, pin 4 Vgg1, pin 9 Vgg2. 

    Apply Vgg bias to either pin 4 or pin 9 ,the datasheet says.

    Can i use only one of the Vgg pins?

    Thanks

  • Sequencing biasing for HMC6981

    Would like to check if there is any suitable circuitry for the sequencing biasing of HMC6981.

    The Idd limit for HMC980 is only till 1.5A, is it possible to “mod” the HMC980 by putting in additional op amp to increase the Idd?

  • HMC6981 S-parameters value

    Hello

    I would like to use the HMC6981 amplifier for a K band PCB but i would like to confirm the losses contained in the S-parameters file given in the website.

    Are these values given at the QFN package pads or do they include the TX lines and connector…

  • HMC6981 pins: Vref and Vdef

    If the Vref and Vdef are not used, can they be left as NC or do they need to be connected to GND? 
    The datasheet doesn't mention that 
    www.analog.com/.../hmc6981.pdf

  • RE: HMC6981

    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: HMC773LC3B - Coupling with PA (HMC6981)

    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: Bias controller for HMC6981LS6

    Hi Simon,

                      Yes, It is compliant. You need to choose your maximum Pout for the HMC6981 so you don't operate at a level where the HMC6981 is unable to supply the proper drain current to the PA.

    This would be a Pout of ~ 32 dBm.

    Attached is a…