Nokia N900 - Table of Contents

Table of Contents
Introduction............................................................................................................................................................6–5
Phone description .............................................................................................................................................6–5
Functional description......................................................................................................................................6–5
Main components..............................................................................................................................................6–5
Energy management..............................................................................................................................................6–7
Battery and charging ........................................................................................................................................6–7
Backup battery...................................................................................................................................................6–8
Normal and extreme voltages .........................................................................................................................6–8
Power key and system power-up....................................................................................................................6–9
Power distribution......................................................................................................................................... 6–10
Clocking scheme............................................................................................................................................. 6–10
Bluetooth and FM RDS radio module................................................................................................................. 6–11
GPS module .......................................................................................................................................................... 6–12
WLAN module ...................................................................................................................................................... 6–13
FM transmitter module....................................................................................................................................... 6–14
High-speed USB.................................................................................................................................................... 6–15
Memory card interfaces ...................................................................................................................................... 6–15
I2C buses .............................................................................................................................................................. 6–16
User interface....................................................................................................................................................... 6–16
Display module............................................................................................................................................... 6–16
Touch screen................................................................................................................................................... 6–16
Keyboard ......................................................................................................................................................... 6–16
Cameras........................................................................................................................................................... 6–17
Illumination .................................................................................................................................................... 6–17
Sensors ............................................................................................................................................................ 6–17
TV-out interface.............................................................................................................................................. 6–18
Consumer infrared transmitter (CIR)............................................................................................................ 6–18
Audio concept...................................................................................................................................................... 6–18
Audio HW architecture................................................................................................................................... 6–18
Cellular RF technical description........................................................................................................................ 6–20
RF block diagram............................................................................................................................................ 6–20
Receiver (RX)................................................................................................................................................... 6–22
Transmitter (TX) ............................................................................................................................................. 6–22
Frequency mappings........................................................................................................................................... 6–23
GSM850 frequencies....................................................................................................................................... 6–23
EGSM900 frequencies..................................................................................................................................... 6–23
GSM1800 frequencies..................................................................................................................................... 6–24
GSM1900 frequencies..................................................................................................................................... 6–26
WCDMA 2100 Rx frequencies......................................................................................................................... 6–27
WCDMA 2100 Tx frequencies ......................................................................................................................... 6–28
WCDMA IV (1700) frequencies....................................................................................................................... 6–29
WCDMA VIII (900) frequencies....................................................................................................................... 6–30
List of Tables
Table 14 Nominal voltages....................................................................................................................................6–9
Table 15 I2C bus configurations ........................................................................................................................ 6–16
List of Figures
RX-51
System Module
Issue 1 COMPANY CONFIDENTIAL Page 6 –3
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