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....................................................................................................................5–9
Modes of operation........................................................................................................................................ 5–10
Clocking scheme............................................................................................................................................. 5–10
Connectivity ......................................................................................................................................................... 5–10
MicroUSB interface ......................................................................................................................................... 5–10
SIM interface ................................................................................................................................................... 5–11
MicroSD card interface ................................................................................................................................... 5–11
USB interface................................................................................................................................................... 5–11
Charger interface............................................................................................................................................ 5–12
Bluetooth ........................................................................................................................................................ 5–13
FM radio........................................................................................................................................................... 5–13
User interface....................................................................................................................................................... 5–14
Display module............................................................................................................................................... 5–14
Keyboard interface......................................................................................................................................... 5–15
Backlight and illumination............................................................................................................................ 5–15
Slide switch interface..................................................................................................................................... 5–16
Camera concept ................................................................................................................................................... 5–17
Camera interface ............................................................................................................................................ 5–17
Audio concept...................................................................................................................................................... 5–17
Audio concept................................................................................................................................................. 5–17
Internal microphone...................................................................................................................................... 5–18
Internal earpiece............................................................................................................................................ 5–19
IHF speaker ..................................................................................................................................................... 5–19
External microphone...................................................................................................................................... 5–20
External earpiece............................................................................................................................................ 5–20
Vibra ................................................................................................................................................................ 5–21
AV connector................................................................................................................................................... 5–22
Combo memory ................................................................................................................................................... 5–23
RF description ...................................................................................................................................................... 5–23
Block diagram................................................................................................................................................. 5–23
Receiver (RX)................................................................................................................................................... 5–24
Transmitter (TX) ............................................................................................................................................. 5–24
List of Tables
Table 13 Nominal voltages....................................................................................................................................5–9
Table 14 AV connector pins................................................................................................................................ 5–22
List of Figures
Figure 27 Battery pin order...................................................................................................................................5–8
Figure 28 MicroUSB connector ........................................................................................................................... 5–10
Figure 29 SIM interface ....................................................................................................................................... 5–11
Figure 30 MicroSD card interface ....................................................................................................................... 5–11
Figure 31 USB interface....................................................................................................................................... 5–12
RM-598; RM-604
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 –3
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