Nokia 300 - Medical and Environmental Safety

Table of Contents
Introduction........................................................................................................................................................... 5–5
Phone description ............................................................................................................................................ 5–5
Energy management............................................................................................................................................. 5–6
Battery and charging ....................................................................................................................................... 5–6
Normal and extreme voltages ........................................................................................................................ 5–7
Power key and system power-up................................................................................................................... 5–8
Modes of operation.......................................................................................................................................... 5–8
Clocking scheme............................................................................................................................................... 5–9
Power distribution........................................................................................................................................... 5–9
SIM interface .......................................................................................................................................................... 5–9
MicroSD card interface ....................................................................................................................................... 5–10
USB....................................................................................................................................................................... 5–10
USB interface.................................................................................................................................................. 5–10
MicroUSB connector ...................................................................................................................................... 5–11
User interface...................................................................................................................................................... 5–11
Display interface............................................................................................................................................ 5–11
Keyboard interface........................................................................................................................................ 5–11
Camera interface ................................................................................................................................................ 5–12
Audio interface ................................................................................................................................................... 5–12
Bluetooth interface ............................................................................................................................................ 5–14
Proximity sensor................................................................................................................................................. 5–14
Touch screen controller ..................................................................................................................................... 5–15
Cellular RF technical description....................................................................................................................... 5–15
RF block .......................................................................................................................................................... 5–15
QuBBE ............................................................................................................................................................. 5–16
Receiver (RX).................................................................................................................................................. 5–16
Synthesizer..................................................................................................................................................... 5–17
Transmitter (TX) ............................................................................................................................................ 5–17
List of Tables
Table 5 Nominal voltages..................................................................................................................................... 5–7
List of Figures
Figure 9 Battery pin order .................................................................................................................................... 5–6
Figure 10 Blade battery connector ...................................................................................................................... 5–7
Figure 11 Small (right) and wide (left) charger plugs ....................................................................................... 5–7
Figure 12 Power distribution diagram ............................................................................................................... 5–9
Figure 13 SIM interface ...................................................................................................................................... 5–10
Figure 14 MicroSD card interface ...................................................................................................................... 5–10
Figure 15 MicroUSB connector .......................................................................................................................... 5–11
Figure 16 Display interface................................................................................................................................ 5–11
Figure 17 Keyboard interface............................................................................................................................ 5–12
Figure 18 Camera interface ............................................................................................................................... 5–12
Figure 19 Audio interface.................................................................................................................................. 5–13
Figure 20 Bluetooth interface........................................................................................................................... 5–14
Figure 21 Touch screen controller.................................................................................................................... 5–15
Figure 22 Linko RF block diagram .................................................................................................................... 5–16
RM-781
System Module
Issue 1 COMPANY CONFIDENTIAL Page 5 – 3
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