User Guide

SIM IF connections..................................................................................................................................... 6–29
Charger connector and charging interface connections & electrical characteristics ......................... 6–30
Internal interfaces.......................................................................................................................................... 6–30
Internal interfaces..................................................................................................................................... 6–30
UI connections........................................................................................................................................... 6–31
Back-up battery interface electrical characteristics............................................................................... 6–32
RF description ...................................................................................................................................................... 6–32
Block diagram................................................................................................................................................. 6–32
Receiver (RX)................................................................................................................................................... 6–33
Transmitter (TX) ............................................................................................................................................. 6–33
Frequency mappings........................................................................................................................................... 6–34
GSM850 frequencies....................................................................................................................................... 6–34
EGSM900 frequencies..................................................................................................................................... 6–35
GSM1800 frequencies..................................................................................................................................... 6–35
GSM1900 frequencies..................................................................................................................................... 6–37
WCDMA 2100 Rx frequencies......................................................................................................................... 6–38
WCDMA 2100 Tx frequencies ......................................................................................................................... 6–39
WCDMA 1900 Rx frequencies......................................................................................................................... 6–40
WCDMA 1900 Tx frequencies ......................................................................................................................... 6–41
List of Tables
Table 9 Cover keyboard matrix .......................................................................................................................... 6–21
Table 10 Audio connector pin assignments ..................................................................................................... 6–28
Table 11 Charging interface connections ......................................................................................................... 6–30
Table 12 Charging IF electrical characteristics ................................................................................................. 6–30
Table 13 User interface connections ................................................................................................................. 6–31
Table 14 Back-up battery connections.............................................................................................................. 6–32
Table 15 Back-up battery electrical characteristics ......................................................................................... 6–32
List of Figures
Figure 35 System level block diagram .................................................................................................................6–5
Figure 36 Power distribution diagram ................................................................................................................6–8
Figure 37 Clocking scheme................................................................................................................................. 6–10
Figure 38 Clocking scheme................................................................................................................................. 6–10
Figure 39 WLAN block diagram.......................................................................................................................... 6–12
Figure 40 Interconnections between application processor, EM ASICs, and IR module............................... 6–13
Figure 41 Block diagram of the GPS system ..................................................................................................... 6–14
Figure 42 Battery pin order................................................................................................................................ 6–15
Figure 43 Camera system block diagram.......................................................................................................... 6–15
Figure 44 Simplified flash LED connection........................................................................................................ 6–17
Figure 45 Audio block diagram.......................................................................................................................... 6–24
Figure 46 Internal microphone circuitry in UI flex PWB.................................................................................. 6–25
Figure 47 Internal microphone circuitry in engine PWB................................................................................. 6–25
Figure 48 External microphone circuitry........................................................................................................... 6–25
Figure 49 Internal speaker circuitry .................................................................................................................. 6–26
Figure 50 External earpiece circuitry (system connector connected on the right) ...................................... 6–26
Figure 51 Vibra circuitry ..................................................................................................................................... 6–27
Figure 52 External audio connector .................................................................................................................. 6–28
Figure 53 Charger connector.............................................................................................................................. 6–30
Figure 54 RF block diagram RM-159 using RF ASIC N7505 .............................................................................. 6–32
RA-6
System Module
Page 6 –4 COMPANY CONFIDENTIAL Issue 1
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