User Guide

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Table 17 Charging interface connections

Pin Signal I/O Engine connection Notes

1 Vchar In N2300 VCharIn1, 2 Charging

voltage /

charger

detection,

Center pin

2 Charge GND Ground Charger

ground

Table 18 Charging IF electrical characteristics

Description Parameter Min Max Unit Notes

Vchar V Charge 0 9 V Center pin

Vchar I Charge 0.85 A Center pin

Charge GND 0.85 A

Internal interfaces

Name of connection Component reference

DALS N6502

Earpiece B2100

Microphone B2180

IHF speakers B2151 / B2150

Main camera socket X1450

Sub-camera N1450

Main display connector X2450

Vibra M2110

Back-up battery interface electrical characteristics

Table 19 Back-up battery electrical characteristics

Description Parameter Min Typ Max Unit

Back-Up

Battery

Voltage

Vback 0 2.5 2.7 V

RF Technical Description

Receiver (RX)

An analogue signal is received by the phone's antenna. The signal is converted to a digital signal and is then

transferred further to the baseband (eg. to the earpiece).

The receiver functions are implemented in the RF ASIC.

RM-348; RM-349; RM-350

System Module and User Interface

Page 8 –24 COMPANY CONFIDENTIAL Issue 2