Nokia 16xx, 3110, 8110 mobile phones connector pinout

layout
schematic diagram

12 pin NOKIA mobile special connector pin-out & layout

12 pin NOKIA mobile special connector 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 (N/C in 1610?)
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 (N/C in 1610?)
12	V_IN	Charging Supply Voltage (Max 16V)

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

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

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

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)

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)

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Pinouts.ru > Pinouts of cellular phones connectors > Pinout of Nokia 16xx, 3110, 8110 mobile phones connector and layout of 12 pin NOKIA mobile special connector Source(s): Nokia 31xx/81xx pinout at Technick.net, from Hardware Book	Document status:	unknown
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