| Pin | Signal | Description |
|---|---|---|
| 1 | GND | Charger/System Ground |
| 2 | V_OUT | Accessory Output Supply. (3.4V…10V - 50mA) |
| 3 | XMIC | External Microphone Input and Accessory Identification Identification TYP/MAX: 8…50 mV(The Maximum Value Corresponds to 0dBm Network LEVEL WITH INPUT AMPLIFIER GAIN SET TO 20 dB ,TYPICAL VALUE IS MAXIMUM VALUE -16 dB) ID Accessory Identification 1,7…2,05 V HEADSET ADAPTOR CONNECTED 1,15…1,4 V COMPACT HANDSFREE UNIT CONNECTED |
| 4 | NC | Not Connected |
| 5 | NC | Not Connected |
| 6 | MBUS | Serial Control Bus Logic Low Level: 0….0.5V Logic High Level:2.4V….3.2V |
| 7 | NC | Not Connected |
| 8 | SGND | Signal Ground |
| 9 | XEAR | XEAR External Speaker and Mute Control Network Level with Volume Control in Nominal Position 8dB Below Maximum Maximum 0 dBM Maximum Volume Codec Gain -6dB) Mute ON (HF SPEAKER MUTE ):0…0,5 V d.c. Mute OFF (HF SPEAKER ACTIVE ): 1,0…1,7 V d.c. |
| 10 | Hook | Hook Signal Hook Off (Handset in Use): 0….0.5V Hook On (Handset in Use): 2.4V….3.2V |
| 11 | NC | Not Connected |
| 12 | V_IN | Charging Supply Voltage (Max 16V) |
References
- [ExiTuS], NokiaPort.de