Nokia RM-484 - Page 182

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
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