Nokia RM-721 - Table of Contents

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 .................................................................................................................................................. 5–10
MicroSD card interface .................................................................................................................................. 5–11
USB interface.................................................................................................................................................. 5–11
Charger interface........................................................................................................................................... 5–12
Bluetooth ....................................................................................................................................................... 5–12
FM radio.......................................................................................................................................................... 5–13
User interface...................................................................................................................................................... 5–14
Display module.............................................................................................................................................. 5–14
Keyboard interface........................................................................................................................................ 5–15
Backlight and illumination........................................................................................................................... 5–15
Camera concept .................................................................................................................................................. 5–15
Camera interface ........................................................................................................................................... 5–15
Audio concept..................................................................................................................................................... 5–16
Audio concept................................................................................................................................................ 5–16
Internal microphone..................................................................................................................................... 5–17
Internal earpiece........................................................................................................................................... 5–18
IHF speaker .................................................................................................................................................... 5–18
External microphone..................................................................................................................................... 5–18
External earpiece........................................................................................................................................... 5–19
Vibra ............................................................................................................................................................... 5–19
AV connector.................................................................................................................................................. 5–19
Combo memory .................................................................................................................................................. 5–20
RF description ..................................................................................................................................................... 5–20
Receiver (RX).................................................................................................................................................. 5–20
Transmitter (TX) ............................................................................................................................................ 5–20
List of Tables
Table 11 Nominal voltages................................................................................................................................... 5–9
Table 12 AV connector pins............................................................................................................................... 5–20
List of Figures
Figure 21 Battery pin order.................................................................................................................................. 5–8
Figure 22 MicroUSB connector .......................................................................................................................... 5–10
Figure 23 SIM interface ...................................................................................................................................... 5–11
Figure 24 MicroSD card interface ...................................................................................................................... 5–11
Figure 25 USB interface...................................................................................................................................... 5–12
Figure 26 Charger interface............................................................................................................................... 5–12
Figure 27 Bluetooth interface........................................................................................................................... 5–13
RM-721; RM-722
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 – 3
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