User Guide

Table of Contents
Introduction............................................................................................................................................................5–5
Phone description .............................................................................................................................................5–5
Energy management..............................................................................................................................................5–8
Battery and charging ........................................................................................................................................5–8
Normal and extreme voltages .........................................................................................................................5–9
Power key and system power-up................................................................................................................. 5–10
Modes of operation........................................................................................................................................ 5–10
Clocking scheme............................................................................................................................................. 5–10
USB, SIM, MMC....................................................................................................................................................... 5–11
USB................................................................................................................................................................... 5–11
SIM interface ................................................................................................................................................... 5–11
Media memory................................................................................................................................................ 5–12
Camera concept ................................................................................................................................................... 5–12
User interface....................................................................................................................................................... 5–13
Display module............................................................................................................................................... 5–13
Keyboard ......................................................................................................................................................... 5–13
Backlight and illumination............................................................................................................................ 5–13
Ambient light sensor (ALS)............................................................................................................................ 5–14
Audio concept...................................................................................................................................................... 5–14
RF description ...................................................................................................................................................... 5–15
Receiver (RX)................................................................................................................................................... 5–15
Transmitter (TX) ............................................................................................................................................. 5–16
Bluetooth ........................................................................................................................................................ 5–16
Technical specifications...................................................................................................................................... 5–17
Main RF characteristics for GSM and WCDMA band phones........................................................................ 5–17
Environmental conditions ............................................................................................................................. 5–18
List of Tables
Table 8 Nominal voltages......................................................................................................................................5–9
Table 9 Key signal matrix ................................................................................................................................... 5–13
List of Figures
Figure 18 Battery pin order...................................................................................................................................5–9
Figure 19 Battery connector..................................................................................................................................5–9
Figure 20 Clocking scheme................................................................................................................................. 5–11
Figure 21 SIM interface ....................................................................................................................................... 5–12
Figure 22 Camera flash LED block diagram....................................................................................................... 5–13
Figure 23 Audio block diagram.......................................................................................................................... 5–15
Figure 24 Bluetooth interface............................................................................................................................ 5–17
RM-265
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 –3
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