iPod Pin |
Pin Name |
USB pin | usb color |
1 | USB DATA - / Left Channel | 2 | white |
2 | USB DATA + / Right Channel | 3 | green |
3 | GND | Casing | black |
4 | VCC | 1 | red |
Remember that this jack is also the headphone jack. The conversion from audio to USB data (+ and -) occurs in the circuit board within the adapter base. Also there is a common diode between the VCC and GND to ensure perfect isolation of VCC.