Nokia RH-53 Manual page 4

Nokia Customer Care
Memory Module ............................................................................................... 28
Fold detection-switch ....................................................................................... 28
SIM Interface.................................................................................................... 28
SIM -reader .................................................................................................... 29
SIM switch and card detection ....................................................................... 29
Assembly ........................................................................................................... 31
Flex .................................................................................................................. 31
Security .............................................................................................................. 32
Test Interfaces................................................................................................... 33
Connections to Baseband................................................................................ 33
FBUS Interface ................................................................................................ 34
Test points ....................................................................................................... 34
RF Functional Descriptions ............................................................................. 36
RF block diagram............................................................................................. 36
Frequency synthesizers ................................................................................... 36
VCXO ............................................................................................................. 36
VCO ............................................................................................................... 36
PLL Synthesizer, Functional Description ....................................................... 37
Receiver........................................................................................................... 37
AGC ............................................................................................................... 38
Transmitter ....................................................................................................... 38
Dual band FEM .............................................................................................. 38
Power control scheme ................................................................................... 38
List of Figures
Fig 1 RH-53/54 bb block diagram ......................................................................... 9
Fig 2 IPower distribution diagram.......................................................................... 17
Fig 3 Flex con. pin out........................................................................................... 20
Fig 4 External audio interface ............................................................................... 22
Fig 5 Earpiece/ringer interface .............................................................................. 24
Fig 6 Microphone interface.................................................................................... 25
Fig 7 BL-4C battery ............................................................................................... 26
Fig 8 Keyboard PWB layout .................................................................................. 26
Fig 9 UEM, UPP and SIM interface....................................................................... 28
Fig 10 Upper block B-cover SIM-slide slot ............................................................ 29
Fig 11 SIM draw and switch .................................................................................. 30
Fig 12 Test pattern ............................................................................................... 33
Fig 13 RF block diagram ....................................................................................... 36
Fig 14 Simplified BB, either I or Q channel ........................................................... 37
Fig 15 Power loop ................................................................................................. 38
4 COMPANY CONFIDENTIAL
Copyright © 2004 Nokia. All Rights Reserved.
RH-53/54
8-System Module
Page No
ISSUE 1 09/2004