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HMC544A: DC blocks at ports RFC, RF1 and RF2

gsellm
on Jan 20, 2016

Hi,

I am working on a high speed data aquistion system. The low power RF signal of interest is DC coupled and therefore I was thinking of using the HMC544A as a switch. The datasheet looked promising (DC - 4GHz) until I have found the section that DC blocks are required. Using DC block capacitors is not an option. Would it be worth a try to leave out the DC blocks?

Thanks and best regards,

Gerald

  • 0 on Jan 25, 2016 8:40 PM

    Hi,

    thanks for your help!

    I checked with my system and the following conditions will apply:

    - DC voltage level of RF signal                --> up to 1.5V

    - Minimum frequency of operation           --> Down to 0Hz

    - Maximum RF signal power                   --> Max. 17dBm

    I hope this will help you.

    Thanks in advance for your help!

    Best regards,

    Gerald