Table of Contents
Introduction............................................................................................................................................................5–5
Phone description .............................................................................................................................................5–5
Energy management........................................................................................................................................... 5–10
Battery and charging ..................................................................................................................................... 5–10
Normal and extreme voltages ...................................................................................................................... 5–11
Power key and system power-up................................................................................................................. 5–11
Modes of operation........................................................................................................................................ 5–12
Clocking scheme............................................................................................................................................. 5–12
USB, SIM, μSD, TV out........................................................................................................................................... 5–13
Micro USB......................................................................................................................................................... 5–13
TV out .............................................................................................................................................................. 5–13
SIM interface ................................................................................................................................................... 5–14
µSD card interface .......................................................................................................................................... 5–15
Camera concept.............................................................................................................................................. 5–15
User interface....................................................................................................................................................... 5–16
Display module............................................................................................................................................... 5–16
Keyboard and other keys............................................................................................................................... 5–16
Backlight and illumination............................................................................................................................ 5–17
Ambient light sensor (ALS)............................................................................................................................ 5–17
Slide switch..................................................................................................................................................... 5–17
Audio concept...................................................................................................................................................... 5–18
Audio concept................................................................................................................................................. 5–18
AV connector................................................................................................................................................... 5–19
RF description ...................................................................................................................................................... 5–20
Bluetooth ........................................................................................................................................................ 5–20
FM radio........................................................................................................................................................... 5–20
Receiver (RX)................................................................................................................................................... 5–21
Transmitter (TX) ............................................................................................................................................. 5–22
Technical specifications...................................................................................................................................... 5–22
Main RF characteristics for GSM and WCDMA band phones........................................................................ 5–22
Environmental conditions ............................................................................................................................. 5–24
List of Tables
Table 8 Nominal voltages................................................................................................................................... 5–11
Table 9 AV connector pins .................................................................................................................................. 5–14
Table 10 Key signal matrix ................................................................................................................................. 5–16
Table 11 AV connector pins................................................................................................................................ 5–19
List of Figures
Figure 19 Battery pin order................................................................................................................................ 5–10
Figure 20 Blade battery connector .................................................................................................................... 5–10
Figure 21 Small (left) and wide (right) charger plugs ..................................................................................... 5–11
Figure 22 Clocking scheme................................................................................................................................. 5–13
Figure 23 SIM interface ....................................................................................................................................... 5–15
Figure 24 Camera block diagram....................................................................................................................... 5–16
Figure 25 Audio block diagram.......................................................................................................................... 5–18
Figure 26 Bluetooth interface............................................................................................................................ 5–20
Figure 27 FM interface ........................................................................................................................................ 5–21
RM-240
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 –3
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