Pin Number |
Pin Name |
Description |
---|---|---|
1,2,18,20,22, 24,39,40 |
GND | Ground |
3 | Audio R | Earphone (right) |
4,6,8 | Vcc | |
5 | Audio L | Earphone (left) |
7 | Audio GND | Earphone GND |
15 | USB D- | |
17 | USB D+ | |
19 | HOST USB D- | via double SMD resistor |
21 | HOST USB D+ | via double SMD resistor |
27 | UART TX | |
29 | UART RX | |
30 | SENSE | Pin to GND via R=10Ohm to switch charger from 5/7.5V to 15V |
31 | ? | Pinned to GND via capacitor in cable? |
33,35,37 | ? | Tied together and pinned to GND via capacitor |
Additional info: