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Receiver (RX)................................................................................................................................................... 8–33

Transmitter (TX) ............................................................................................................................................. 8–33

Frequency mappings........................................................................................................................................... 8–34

GSM850 frequencies....................................................................................................................................... 8–34

EGSM900 frequencies..................................................................................................................................... 8–34

GSM1800 frequencies..................................................................................................................................... 8–35

GSM1900 frequencies..................................................................................................................................... 8–37

WCDMA I (2100) Rx frequencies .................................................................................................................... 8–38

WCDMA I (2100) Tx frequencies .................................................................................................................... 8–39

WCDMA II (1900) frequencies........................................................................................................................ 8–40

WCDMA VIII (900) frequencies....................................................................................................................... 8–41

WCDMA V (850) frequencies .......................................................................................................................... 8–46

List of Tables

Table 9 Nominal voltages................................................................................................................................... 8–10

Table 10 IO expander I (located on the engine PWB)...................................................................................... 8–22

Table 11 IO expander II (located at the S60 flex)............................................................................................. 8–22

Table 12 Charging interface connections ......................................................................................................... 8–31

Table 13 Charging IF electrical characteristics ................................................................................................. 8–31

Table 14 Back-up battery electrical characteristics ......................................................................................... 8–31

List of Figures

Figure 58 System module block diagram ............................................................................................................8–8

Figure 59 Board and module connections...........................................................................................................8–9

Figure 60 Power distribution............................................................................................................................. 8–11

Figure 61 Clocking scheme................................................................................................................................. 8–12

Figure 62 Bluetooth & FM radio block diagram ............................................................................................... 8–14

Figure 63 GPS module......................................................................................................................................... 8–14

Figure 64 WLAN module ..................................................................................................................................... 8–15

Figure 65 FM transmitter.................................................................................................................................... 8–15

Figure 66 HS USB block diagram........................................................................................................................ 8–16

Figure 67 USB charger interface block diagram............................................................................................... 8–17

Figure 68 SIM interface ....................................................................................................................................... 8–17

Figure 69 MicroSD card interface ....................................................................................................................... 8–18

Figure 70 Camera block diagram....................................................................................................................... 8–19

Figure 71 UI/slide module partition.................................................................................................................. 8–20

Figure 72 Display interface block diagram ....................................................................................................... 8–21

Figure 73 I/O expanders and keyboard matrixes............................................................................................. 8–21

Figure 74 Illumination block diagram .............................................................................................................. 8–23

Figure 75 Light segments................................................................................................................................... 8–24

Figure 76 Audio system block ............................................................................................................................ 8–26

Figure 77 Internal microphone.......................................................................................................................... 8–26

Figure 78 Internal earpiece circuitry................................................................................................................. 8–27

Figure 79 Internal speakers................................................................................................................................ 8–27

Figure 80 Vibra circuitry ..................................................................................................................................... 8–27

Figure 81 Accessory (AV) connector................................................................................................................... 8–28

Figure 82 Accessory (AV) connector with DAC33 and TPA6130 audio enhancements ................................. 8–29

Figure 83 External earpiece and microphone audio circuit............................................................................ 8–29

Figure 84 Charger connector.............................................................................................................................. 8–30

Figure 85 RF block diagram RM-484 using RF ASIC N7500 .............................................................................. 8–32

RM-484; RM-485; RM-486

System Module and User Interface

Page 8 –4 COMPANY CONFIDENTIAL Issue 1