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Thread: X Y Input Resistor

  1. #1
    Join Date
    Apr 2009
    Location
    Malta
    Posts
    77

    Question X Y Input Resistor

    Stupid question. I was disassembling the ILDA connector on my laser and found that the X and Y channels had a 10k resistor in series with the input. Is there any valid reason for this? BTW input is differential +/- 5v.

    Thanks

  2. #2
    Join Date
    Sep 2006
    Location
    Netherlands
    Posts
    1,425

    Default

    As you can see in this schematic, input series resistors can be part of the input-stage.
    Click image for larger version. 

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