User Guide

Internal interfaces.......................................................................................................................................... 9–29
Back-up battery interface electrical characteristics.................................................................................... 9–29
RF description ...................................................................................................................................................... 9–30
Block diagram................................................................................................................................................. 9–30
Receiver (RX)................................................................................................................................................... 9–30
Transmitter (TX) ............................................................................................................................................. 9–31
Frequency mappings........................................................................................................................................... 9–32
GSM850 frequencies....................................................................................................................................... 9–32
EGSM900 frequencies..................................................................................................................................... 9–32
GSM1800 frequencies..................................................................................................................................... 9–33
GSM1900 frequencies..................................................................................................................................... 9–35
WCDMA 2100 Rx frequencies......................................................................................................................... 9–36
WCDMA 2100 Tx frequencies ......................................................................................................................... 9–37
List of Tables
Table 13 Nominal voltages....................................................................................................................................9–9
Table 14 AV interface electrical characteristics................................................................................................ 9–27
Table 15 Charging interface connections ......................................................................................................... 9–29
Table 16 Charging IF electrical characteristics ................................................................................................. 9–29
Table 17 Back-up battery connections.............................................................................................................. 9–29
Table 18 Back-up battery electrical characteristics ......................................................................................... 9–30
List of Figures
Figure 76 Battery pin order...................................................................................................................................9–8
Figure 77 Blade battery connector .......................................................................................................................9–8
Figure 78 Small (left) and wide (right) charger plugs ........................................................................................9–8
Figure 79 Clocking scheme................................................................................................................................. 9–12
Figure 80 Bluetooth interface............................................................................................................................ 9–13
Figure 81 FM interface ........................................................................................................................................ 9–13
Figure 82 Interconnections between RAPIDO, EM ASICs, and IR module....................................................... 9–15
Figure 83 SIM interface ....................................................................................................................................... 9–16
Figure 84 Camera flash and driver design ........................................................................................................ 9–18
Figure 85 Cover user interface keys................................................................................................................... 9–19
Figure 86 Keyboard layout ................................................................................................................................. 9–20
Figure 87 Keymatrix............................................................................................................................................ 9–20
Figure 88 MR sensor connection........................................................................................................................ 9–22
Figure 89 Audio block diagram.......................................................................................................................... 9–24
Figure 90 Internal microphone circuitry .......................................................................................................... 9–24
Figure 91 External earpiece and microphone circuitry (AV connected on the right) ................................... 9–25
Figure 92 Internal earpiece circuitry................................................................................................................. 9–25
Figure 93 Internal speaker circuitry .................................................................................................................. 9–26
Figure 94 External earpiece and microphone circuitry (AV connected on the right) ................................... 9–26
Figure 95 Vibra circuitry ..................................................................................................................................... 9–27
Figure 96 Charger connector.............................................................................................................................. 9–28
Figure 97 RF block diagram RM-176 using RF ASIC N7505 .............................................................................. 9–30
RM-176
Nokia Customer Care System Module and User Interface
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