ADL5519 evaluation board glitch question

I have an ADL5519 evaluation board, and I noticed that, if I feed a low level signal (say 1GHz frequency, -120dBm up to -60dBm) into INHA (or terminate INHA in 50 ohms) I can see a recurring output glitch on OUTA (see scope captures below).  As I increase the input power, the amplitude of the glitches decreases, but they do not disappear.

I am trying to use the detector to recover low frequency pulse train patterns, and this glitch is in the passband of the data I am trying to extract.

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    •  Analog Employees 
    on Jul 2, 2012 11:47 PM

    You are detecting noise from your enviornment. I tooka device into the lab and used a battery ( to eliminate power supply noise) and experienced a similar effect.  Ithen took the device into a shielded room and the output was clear.

  • 0
    •  Analog Employees 
    on Aug 2, 2018 4:37 PM
    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,
    EZ Admin