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noise question

Discussion in 'Electronic Basics' started by jim, Dec 10, 2003.

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  1. jim

    jim Guest

    Is there a simple explanation for how to use noise figure? For
    example, if a component advertises 3nV/ sq rt Hz, do I just plug in
    the bandwidth I'm running it at ,take the sq rt and multiply it by the
    nV for my noise density? What would I see on my scope? I 've got
    several electronics books but none seem to explain how to use these
    figures to predict what noise level I will see,at least not in any
    easy to understand way. Any help? Thanks ahead. jm
  2. A lot of gibberish. You need a spectrum analyser ti see how the noise
    actually varies with frequency. The scope only give you a rough idea of
    the average and peak values of the noise.

    Kevin Aylward
    SuperSpice, a very affordable Mixed-Mode
    Windows Simulator with Schematic Capture,
    Waveform Display, FFT's and Filter Design.

    "Understanding" itself requires consciousness,
    therefore consciousness cannot be "understood"
    without referring to itself for the explanation,
    therefore the "hard problem" of consciousness,
    is intrinsically unsolvable as it is self referral.

    "I now understand how inanimate matter results in
    consciousness. What do you mean by "understand"?
    Understanding is that quality which results when
    one has consciousness".
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