iPhone headphone output becomes an input

Discussion in 'General Electronics Chat' started by Andreas, Sep 21, 2012.

  1. Andreas

    Thread Starter Well-Known Member

    Jan 26, 2009
    70
    4
    Hi,

    How does the headphone output jack on an Apple iPhone become an input for peripheral devices such as iRig which works with a guitar? I have some theories but want to throw it out there and see what you lot have to say.

    Cheers.
     
  2. BMorse

    AAC Fanatic!

    Sep 26, 2009
    2,675
    237
    it doesn't, the connector shares a Mic input also.
     
  3. Andreas

    Thread Starter Well-Known Member

    Jan 26, 2009
    70
    4
    Hence the 4 way jack. The mic input is mono - of course, makes sense. Helps to look at the hardware before summizing theories.
     
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