User Guide

Transmitter (TX) ............................................................................................................................................. 6–29
Frequency mappings........................................................................................................................................... 6–30
GSM850 frequencies....................................................................................................................................... 6–30
EGSM900 frequencies..................................................................................................................................... 6–30
GSM1800 frequencies..................................................................................................................................... 6–31
GSM1900 frequencies..................................................................................................................................... 6–33
WCDMA 2100 Rx frequencies......................................................................................................................... 6–34
WCDMA 2100 Tx frequencies ......................................................................................................................... 6–35
List of Tables
Table 15 Nominal voltages....................................................................................................................................6–8
Table 16 AV interface electrical characteristics................................................................................................ 6–25
Table 17 Charging interface connections ......................................................................................................... 6–26
Table 18 Charging IF electrical characteristics ................................................................................................. 6–27
Table 19 Back-up battery connections.............................................................................................................. 6–27
Table 20 Back-up battery electrical characteristics ......................................................................................... 6–27
List of Figures
Figure 47 RM-244 block diagram..........................................................................................................................6–6
Figure 48 RM-244 UI...............................................................................................................................................6–7
Figure 49 Battery pin order...................................................................................................................................6–7
Figure 50 Blade battery connector .......................................................................................................................6–8
Figure 51 Small (right) and wide (left) charger plugs ........................................................................................6–8
Figure 52 Bluetooth interface............................................................................................................................ 6–12
Figure 53 FM radio............................................................................................................................................... 6–13
Figure 54 Interconnections between RAPIDO, EM ASICs, and IR module....................................................... 6–15
Figure 55 Internal microphone circuitry........................................................................................................... 6–23
Figure 56 Internal speaker circuitry .................................................................................................................. 6–24
Figure 57 Vibra circuitry ..................................................................................................................................... 6–25
Figure 58 Charger connector.............................................................................................................................. 6–26
Figure 59 RF block diagram RM-176 using RF ASIC N7505 .............................................................................. 6–28
RM-244
System Module and User Interface
Page 6 –4 COMPANY CONFIDENTIAL Issue 1
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