Electronic – Audio Jack Schematic

audioconnector

We are using this audio jack in our design. I am having trouble understand the schematic of this audio jack. My understanding is that

  1. Pin 5 and Pin 4 : Audio left and right
  2. Pin 2 or Pin 3 : Ground or
    Mic
  3. Pin 1: detect

Can anyone confirm my understanding? I think that the switch is normally open and pin 3 will short with pin 1 when the jack is inserted. Audio Jack

Best Answer

I always use this standard here, that its the same the Nokia and Apple use:

enter image description here

With this schematic, I think that maybe the pins 2 and 3 can be shorted when the jack is inserted.

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