From HwB
[edit] Pinout
NOKIA SPECIAL at the cellular phone.
| Pin | Name | Description
|
| 1 | GND | Charger/System Ground
|
| 2 | V_OUT | Accessory Output Supply. (3.4V...10V - 50mA)
|
| 3 | XMIC | External Microphone Input and Accessory Identification
|
| 4 | EXT_RF | External RF Control Input
|
| 5 | TX | FBUS Transmit
|
| 6 | MBUS | Serial Control Bus
|
| 7 | BENA | Not Connected
|
| 8 | SGND | Signal Ground
|
| 9 | XEAR | External Speaker and Mute Control
|
| 10 | Hook | Hook Signal
|
| 11 | RX | FBUS Receive
|
| 12 | V_IN | Charging Supply Voltage (Max 16V)
|
[edit] XMIC: External Microphone Input and Accessory Identification
| U low | U high | Description
|
| 1.15 V | 1.4 V | Compact Handsfree Unit Connected
|
| 1.7 V | 2.05 | Headset Adapter Connected
|
| 2.22 V | 2.56 V | Infra Red Link Conneceted
|
[edit] EXT_RF: External RF Control Input
| U low | U high | Description
|
| 0.0 V | 0.5 V | External RF in use
|
| 2.4 V | 3.2 V | Internal Antenna in use
|
[edit] MBUS: Serial Control Bus
| U low | U high | Description
|
| 0.0 V | 0.5 V | Logic Low Level
|
| 2.4 V | 3.2 V | Logic High Level
|
[edit] XEAR: External Speaker and Mute Control
| U low | U high | Description
|
| 0.0 V | 0.5 V | Mute ON (HF Speaker Mute)
|
| 1.0 V | 1.7 V | Mute OFF (HF Speaker Active)
|
[edit] Hook: Hook Signal
| U low | U high | Description
|
| 0.0 V | 0.5 V | Hook Off (Handset in Use)
|
| 2.4 V | 3.2 V | Hook On (Handset in Use)
|
[edit] Contributions
[edit] Sources
