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HMC-C200 DRO vibration sensitivity graph

Hi

I am not that familiar with vibration sensitivity, but I am trying to make sense of this graph that is given in the datasheet for the HMC-C200 DRO:

Can somebody please explain to me what this means? If the y-axis units were /G it would have made sense to me. As far as I know, /G is the usual unit for vibration sensitivity, and then I could calculate the phase noise of the device under specific vibration conditions. The unit g2/Hz used in this graph usually refers to power spectral density of vibration, but then the graph does not make any sense to me.

Any help would be appreciated, thanks.

Parents
  • I can see you are frustrated.

    the vibration sensitivity measurements have been contested before.

    the best thing I think I can do is upload a paper for you to read and hopefully get a better understanding of our measurements.

    this paper goes over PSG and G^2/Hz

    Vibration-induced PM Noise in Oscillators and its Suppression

    Archita Hati, Craig Nelson and David Howe

    National Institute of Standards and Technology

Reply
  • I can see you are frustrated.

    the vibration sensitivity measurements have been contested before.

    the best thing I think I can do is upload a paper for you to read and hopefully get a better understanding of our measurements.

    this paper goes over PSG and G^2/Hz

    Vibration-induced PM Noise in Oscillators and its Suppression

    Archita Hati, Craig Nelson and David Howe

    National Institute of Standards and Technology

Children
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