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ADL5511 Envelope Detector

Hi,

Can the ADL5511 envelope detector be used for 100MHz 5G signals. The quoted B/W is 130MHz so I assume it will be ok. Has anyone tried it and also can anyone recommend a good output buffer as it looks to be load sensitive,

Thanks,

Alan

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  • Hi Alan,

    I'd suggest to actually try the ADL5511 with your particular simulated (or actual) RF signal source, to confirm accuracy and response time are acceptable for your 5G sig source. I don't expect any problems. Sometimes there can be long gaps in between frames, so make sure the downstream sig processing can process the detector output quickly, while the detector output signal is still valid during a frame or right at the end of a frame. 

    About the output buffer, sorry I can't suggest one offhand, but I'm sure you'll find suitable selections using the product selector on the public website.   -Bruce H. 

  • Thanks Bruce,

    I have the ADL5511 detecting a 5G waveform and it looks ok for the application I am doing, I am basically just looking for peaks in the modulation. if there is some filtering then I dont think it is a problem. The ADL5511 is very good as it has an RMS output as well which is good as I am looking at a TDD waveform so I have correct timing between RF envelope and overall TDD waveform.

    I used the THS3491 as a buffer which was good as I have a few of them and they are easy to set up and assemble, might be a bit over the top for this application but they work.

    Thanks,

    Alan.

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  • Thanks Bruce,

    I have the ADL5511 detecting a 5G waveform and it looks ok for the application I am doing, I am basically just looking for peaks in the modulation. if there is some filtering then I dont think it is a problem. The ADL5511 is very good as it has an RMS output as well which is good as I am looking at a TDD waveform so I have correct timing between RF envelope and overall TDD waveform.

    I used the THS3491 as a buffer which was good as I have a few of them and they are easy to set up and assemble, might be a bit over the top for this application but they work.

    Thanks,

    Alan.

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