A little description:
- 13, 26 and 29 are the pin indices of the Dock Connector.
- The Resistor above the mic could be around 5kOhm, depending on your mic (see the note below)
- The capacitors C1 and C2 should be above 1microPharad, any vale is ok.
IMPORTANT!!
When using the tiny mic from the other posts, the Resistor above the mic should be 6,8kOhm. Simply, the best choise is when the voltage at the top of the mic is close to 1.65V, given, that Ucc=3.3V. Then there is no voltage on C1, ie. no transient clicks when you plug it in.