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Type: Posts; User: alonper

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  1. Wow. Thank you so much for this deep...

    Wow.
    Thank you so much for this deep explanations..
    for sure I will check it. I need to order some parts.
    Anyway I will update with results.
    Thanks again!
    Alon
  2. LINE-IN shorted to GND to isolate the piezo, as...

    LINE-IN shorted to GND to isolate the piezo, as you told : no 1K noise..
    10636


    regarding your question, Maybe Paul could answer this question?


    I disabled the HP a week ago and some noises...
  3. Hi Chip, first of all thanks for reply....

    Hi Chip,
    first of all thanks for reply.
    Regarding you question, How is the unity gain buffer will help if I still have only single power supply? I still have to make this "DC coupling" to center...
  4. I tried this but it did'nt change much... I...

    I tried this but it did'nt change much...


    I will try that, but I dont think it enough.
    I tried to feed the the 3.3V from separate DC Power Supply and it didn't reduce the 1Khz noises..

    ...
  5. Noises while feeding analog circuit (pre-amp) from the teensy 3.3v and GND.

    Hi,

    I've got 1Khz (and the harmonics 2K,3K..) noises in the LINE-IN inputs while sampling a Piezo sensors that connected through self-built analog circuit, a pre-amp\Active filter.

    My analog...
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