Nokia N72

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Battery connector and interface connections & electrical characteristics...........................................9–38

Internal interfaces...........................................................................................................................................9–38

Internal interfaces......................................................................................................................................9–38

UI connections............................................................................................................................................9–39

Keyboard interface electrical characteristics..........................................................................................9–39

Display connector and interface connections.........................................................................................9–40

Camera interface connections and electrical characteristics.................................................................9–41

Flash LED interface and electrical characteristics...................................................................................9–43

Slider switch electrical characteristics.....................................................................................................9–44

Back-up battery interface connections and electrical characteristics..................................................9–44

RF description.......................................................................................................................................................9–44

Receiver............................................................................................................................................................9–44

Introduction to receiver functionality.....................................................................................................9–44

GSM receiver................................................................................................................................................9–44

Transmitter......................................................................................................................................................9–45

Introduction to transmitter functionality...............................................................................................9–45

GSM transmitter functionality...................................................................................................................9–45

Frequency synthesizers..................................................................................................................................9–45

Regulators........................................................................................................................................................9–46

Frequency mappings............................................................................................................................................9–47

EGSM900 frequencies......................................................................................................................................9–47

GSM1800 frequencies......................................................................................................................................9–48

GSM1900 frequencies......................................................................................................................................9–49

List of Tables

Table 16 Camera specifications..........................................................................................................................9–18

Table 17 Keymatrix..............................................................................................................................................9–23

Table 18 LED driver control signals....................................................................................................................9–25

Table 19 ALS resistor values................................................................................................................................9–26

Table 20 Supply voltages for combo memory interfaces.................................................................................9–27

Table 21 Audio connector pin assignments......................................................................................................9–32

Table 22 Charging interface connections..........................................................................................................9–37

Table 23 Charging IF electrical characteristics..................................................................................................9–37

Table 24 Battery interface connections.............................................................................................................9–38

Table 25 Battery IF electrical characteristics.....................................................................................................9–38

Table 26 User interface connections..................................................................................................................9–39

Table 27 Display interface connections.............................................................................................................9–40

Table 28 Camera interface connections.............................................................................................................9–41

Table 29 Camera CCP IF electrical characteristics..............................................................................................9–42

Table 30 Camera supply voltage characteristics...............................................................................................9–43

Table 31 Camera control IF electrical characteristics.......................................................................................9–43

Table 32 Flash LED interface connections..........................................................................................................9–43

Table 33 Flash LED interface electrical characteristics ....................................................................................9–44

Table 34 Back-up battery connections...............................................................................................................9–44

Table 35 Back-up battery electrical characteristics..........................................................................................9–44

List of Figures

Figure 86 System level block diagram..................................................................................................................9–7

Figure 87 Functional block diagram.....................................................................................................................9–8

Figure 88 Application processor high level block diagram................................................................................9–9

RM-180

Nokia Customer Care System Module

Page 9 –4 COMPANY CONFIDENTIAL Issue 1