3.5mm jack schematic question

Discussion in 'General Electronics Chat' started by phase ghost, Mar 25, 2010.

  1. phase ghost

    Thread Starter New Member

    Mar 3, 2010
    14
    0
  2. beenthere

    Retired Moderator

    Apr 20, 2004
    15,815
    282
  3. phase ghost

    Thread Starter New Member

    Mar 3, 2010
    14
    0
    After further research, I figured out what the jack is looking for...I think. 1 is the ground wire and 2 is the signal. 3 seems to be an interrupt. From what I can tell it is to stop another signal such as cutting the audio to speakers when a headphone is plugged in. For my purposes it won't be needed and I think I can just leave the jack alone.

    That sparks another question. Should I ground pin 3 so it doesn't receive any stray signal or will it be fine just hanging out?
     
  4. Audioguru

    New Member

    Dec 20, 2007
    9,411
    896
    The extra contact on your jack is so small that it won't pickup interference.
     
Loading...