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T LP filter and RC LP filter

Discussion in 'Electronic Basics' started by eeh, Apr 1, 2005.

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  1. eeh

    eeh Guest

    What is the difference between T-filter LP filter and RC LP filter?

    I know T-filter is


    and RC LP filter is


    The differrence is just a resistor more.

    What is their performance difference?
  2. That depends very much on the impedance of whatever receives the
    output signal. If that impedance is very high compared to either
    resistor, then the second resistor has almost no effect.

    If the receiving impedance is very much less than either R, then the
    second resistor effectively isolates the receiving impedance from the
  3. eeh

    eeh Guest

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