hmc998apm5e

Hi,

Would like to request for the sequencing biasing for the hmc998apm5e. In addition, I would like to turn off the PA when it is not in use. 

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  • +1
    •  Analog Employees 
    on May 26, 2020 1:21 PM 2 months ago

    Hi HK,

    The recommended bias sequence during power-up is as follows:

    1. Set VGG1 to −2.0 V 

    2. Set VDD to 15.0 V. 

    3. Set VGG2 to 9.5 V. 

    4. Adjust VGG1 to set Idq=500mA

    5. Apply the RF input signal. 

     

    The recommended bias sequence during power-down is as follows: 

    1. Turn off the RF input signal. 

    2. Set VGG1 to −2.0 V 

    3. Set VGG2 to 0 V. 

    4. Set VDD to 0 V. 

    5. Set VGG1 to 0 V.

     

    Regards

    Ivan

Reply
  • +1
    •  Analog Employees 
    on May 26, 2020 1:21 PM 2 months ago

    Hi HK,

    The recommended bias sequence during power-up is as follows:

    1. Set VGG1 to −2.0 V 

    2. Set VDD to 15.0 V. 

    3. Set VGG2 to 9.5 V. 

    4. Adjust VGG1 to set Idq=500mA

    5. Apply the RF input signal. 

     

    The recommended bias sequence during power-down is as follows: 

    1. Turn off the RF input signal. 

    2. Set VGG1 to −2.0 V 

    3. Set VGG2 to 0 V. 

    4. Set VDD to 0 V. 

    5. Set VGG1 to 0 V.

     

    Regards

    Ivan

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