Customer Care Solutions
RM-37 Series Transceivers
7-System Module and User
Interface
Issue 1 04/2004 Company Confidential © Nokia Corporation
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Table of Contents
Page No
Glossary of Terms ..........................................................................................................5
Introduction ....................................................................................................................8
Electrical Modules .......................................................................................................8
Interconnection Diagram .............................................................................................8
Temperature Conditions ..............................................................................................9
Humidity ......................................................................................................................9
System Module : Baseband ..........................................................................................10
Baseband Module, technical summary ......................................................................10
Technical Summary ...................................................................................................11
Environmental Specifications ....................................................................................11
Temperature Conditions ..........................................................................................11
Humidity and Water Resistance ..............................................................................12
Baseband Technical Specifications ...........................................................................13
Absolute Maximum Ratings ....................................................................................13
DC Characteristics ...................................................................................................13
Power Distribution diagram ....................................................................................15
Baseband External and Internal Signals and Connections ........................................16
Camera interface .....................................................................................................17
Integrated HF Speaker .............................................................................................18
FM Radio Interface .................................................................................................18
Internal Speaker .......................................................................................................19
Integrated HF Speaker .............................................................................................19
External Signals and Connections .............................................................................23
Keyboard (board-to-board) Connector ....................................................................23
LCD Connector (Board to Board) ...........................................................................24
DC Connector ..........................................................................................................25
Bottom Connector ...................................................................................................25
SIM connector .........................................................................................................26
Internal Signals and Connections ............................................................................27
Baseband Functional Description ................................................................................28
Modes of Operation ...................................................................................................28
No Supply ................................................................................................................28
Back-up ...................................................................................................................28
Acting Dead .............................................................................................................28
Active ......................................................................................................................28
Sleep Mode ..............................................................................................................29
Charging ..................................................................................................................29
Battery .....................................................................................................................29
Power Up and Reset ...................................................................................................30
Power Up with PWR key ........................................................................................31
Power Up when Charger is connected ....................................................................31
Power Up when Battery is connected .....................................................................31
RTC Alarm Power Up .............................................................................................32
A/D Channels .............................................................................................................32
FM Radio ...................................................................................................................33
IR Module ...............................................................................................................33
SIM Interface ...........................................................................................................33
Page 2 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
ACI ..........................................................................................................................34
External Accessory Regulator .................................................................................35
External Audio ...........................................................................................................35
External Microphone Connection ...........................................................................35
External Earphone Connections ..............................................................................36
Internal Audio ............................................................................................................37
IHF Speaker & Stereo Audio Amplifier .................................................................37
Internal Microphone ................................................................................................37
Internal Speaker .......................................................................................................37
IHF Speaker & Stereo Audio Amplifier .................................................................38
Camera ....................................................................................................................39
Signal descriptions ..................................................................................................39
Memory Block ...........................................................................................................40
Security ....................................................................................................................40
Clock Distribution .....................................................................................................41
Audio Control ..........................................................................................................42
Accessory identification and Power Supply ............................................................42
Backup Battery ........................................................................................................43
RF Module Introduction ...............................................................................................43
RF Frequency Plan ....................................................................................................45
DC characteristics ......................................................................................................46
Regulators ................................................................................................................46
Typical current consumption ...................................................................................47
Power Distribution ..................................................................................................48
RF characteristics .........................................................................................................49
Channel Numbers and Frequencies .........................................................................49
Main RF characteristics ...........................................................................................49
Transmitter characteristics ......................................................................................49
Receiver characteristics ...........................................................................................50
RF Block Diagram ..................................................................................................50
RF Block Diagram RM-37 ......................................................................................51
Frequency Synthesizers .............................................................................................52
Receiver .....................................................................................................................52
Transmitter .................................................................................................................52
Front End .................................................................................................................52
Power Amplifier ......................................................................................................53
RF ASIC Helga .......................................................................................................54
AFC function ...........................................................................................................54
Antenna ..................................................................................................................54
User Interface Modules ................................................................................................55
UI Board TK8 ............................................................................................................55
Keyboard .................................................................................................................55
Display ....................................................................................................................56
LCD & Keypad Illumination ...................................................................................57
Internal Speaker .......................................................................................................57
Buzzer ......................................................................................................................57
Vibra ........................................................................................................................57
Issue 1 04/2004 © Nokia Corporation. Page 3
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Schematics/Layouts, TK8_12 module (A3 size)................................................................................................
User Interface diagram 1 (ver.0.0 ed.16) ................................................................................................ 1
Parts Placement diagram ............................................................................................................................ 2
Schematics/Layouts, TB3_18 module (A3 size)................................................................................................
Block diagram 1 (ver.0.0 ed.4) ....................................................................................................................1
Block Diagram 2 (ver. 0 ed. 275) ............................................................................................................... 2
System connector/baseband (ver.0.0 ed. 51) ..........................................................................................3
User Interface (ver. 0.0 ed. 53) ................................................................................................................... 4
SIM reader (ver.0.0 ed. 15) ..........................................................................................................................5
Power management (ver. 1.3 ed. 106) ...................................................................................................6
DC/DC converter (ed. 0.0 ver.8) ..................................................................................................................7
Old power discrete (ver. 0 ed.7) .................................................................................................................8
Light filtering (ed. 2.0 ver 27)......................................................................................................................9
Power thermal resistor ...............................................................................................................................10
UPP_8M (ed. 2.0 ver. 101) .........................................................................................................................11
UPP decoupling capacitors (ed.1.3 ver. 9) ............................................................................................ 12
Flash (ed. 2.0 ver.28) .................................................................................................................................. 13
Flash decoupling capacitors (ver. 2.0 ed.4) .......................................................................................... 14
FM radio IC (ver.1.3 ed 145) .................................................................................................................... 15
FM radio unit (Ver. 0.0 ed. 117) ............................................................................................................... 16
RF/BB interface (ver. 1.3 ed. 40) ............................................................................................................ 17
Audio (ver. 0.0 ed. 41) ................................................................................................................................ 18
IR (Ver. 0.0 ed. 32) ....................................................................................................................................... 19
IR thermal resistor (ver. 0.0 ed. 5) .......................................................................................................... 20
RF Block Diagram (ver. 0.0 ed.5) ..............................................................................................................21
RF shields (ver. 0.0 ed.6)............................................................................................................................ 22
RF IC HELGA (ver. 0.0 ed.2) ...................................................................................................................... 23
RX Front End and Antenna Switch (ver. 0.0 ed.2 ) ............................................................................ 24
Power amplifier detection (ver. 0.2 ed. 3) ........................................................................................ 25
Parts Placement TB3_18, bottom .......................................................................................................... 26
Parts Placement TB3_18, top ................................................................................................................ 27
Test Points TB3_18, top side ................................................................................................................... 28
List of Test Points ........................................................................................................................................ 30
Page 4 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
Glossary of Terms
ACI Accessory Control Interface
ADC Analog-Digital Converter
AEC Acoustic Echo Canceller
AFC Automatic Frequency Control
AGC Automatic Gain Control
AIF Application Interface
ALWE Background noise suppressor
AMS After Market Service
API Application Programming Interface
ARM Processor architecture
ASIC Application Specific Integrated Circuit
BB Baseband
BT Bluetooth
CBus Control Bus connecting UPP_WD2 with UEM
CCI Camera Control Interface
CCP Compact Camera Port
CMT Cellular Mobile Telephone (MCU and DSP)
CPU Central Processing Unit
CTSI Clocking Timing Sleep Interrupt
COBBA_GJP DCT3 RF-interface and audio codec ASIC with serial MAD interface
COG Chip On Glass
CSP Chip Scale Package
CSTN Color Super Twisted Nematic
DAC Digital-Analog Converter
Issue 1 04/2004 © Nokia Corporation. Page 5
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
DAI Digital Audio Interface
DB Dual band
DCS1800 Digital Cellular system at 1800 MHz
DCT3 Digital Core Technology, 3rd generation
DCN Offset Cancellation control signal
DLL Dynamic Link Library
DRC Dynamic Range Controller
DSP Digital Signal Processor
EGSM Extended – GSM
EFR Enhanced Full Rate
EGPRS Enhanced General Packet Radio Service
EMC Electromagnetic compatibility
EMI Electromagnetic Interference
ESD Electro Static Discharge
EXT RF External RF
FBUS Asynchronous Full Duplex Serial Bus
GPRS General Packet Radio Service
GSM Global System for Mobile communications
HS Half Rate Speech
HSCSD High Speed Circuit Switched Data
IC Integrated Circuit
HF Integrated Hands Free
I/O Input/Output
IrDA Infrared Association
Page 6 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
LCD Liquid Crystal Display
LDO Low Drop-Out
LNA Low Noise Amplifier
MBUS 1-wire half duplex serial bus
MCU Micro Controller Unit
MDI MCU-DSP Interface
MFI Modulator and Filter Interface
PA Transmit Power Amplifier
PC Personal Computer
PCM Pulse Code Modulation
PCM SIO Synchronous serial bus for PCM audio transferring
PIFA Planar Inverted F-antenna
PWB Printed Wiring Board
RF Radio Frequency
SIM Subscriber Identity Module
UEM Universal Energy Management
UI User Interface
UPP Universal Phone Processor
VCXO Voltage Controlled Crystal Oscillator
VCTCXO Voltage Controlled Temperature Compensated Crystal Oscillator.
Issue 1 04/2004 © Nokia Corporation. Page 7
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Introduction
Electrical Modules
The system module TB3 consists of Radio Frequency (RF) and baseband (BB). User Interface (UI) contains display, keyboard, IR link, vibra, HF/HS connector and audio parts.
FM radio is located on the main PWB TB3.
The electrical part of the keyboard is located in separate UI PWB named TK8. TK8 is connected to radio PWB through spring connectors.
The Baseband blocks provide the MCU, DSP, external memory interface and digital control functions in the UPP ASIC. Power supply circuitry, charging, audio processing and RF
control hard ware are in the UEM ASIC.
The purpose of the RF block is to receive and demodulate the radio frequency signal from
the base station and to transmit a modulated RF signal to the base station.
The UI module is described in this section of the manual.
Interconnection Diagram
Keyboard
module
SIM Battery
Antenna
Microphone
Figure 1: Interconnection diagram
Display
Radio Module
Radio
Modul e
RM-37
IHF
speaker
NHL-
IR Link
Earpiece
CIF
Camera
Charger
Tomahawk
Accessories
Page 8 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
Temperature Conditions
Specifications are met within range of -10...+55 deg. C ambient temperature
Storage temperature range -40...+70 deg. C
Humidity
Relative humidity range is 5... 95%.
This module is not protected against water. Condensated or splashed water might cause
malfunction momentary. Long term wetness will cause permanent damage.
Issue 1 04/2004 © Nokia Corporation. Page 9
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
System Module : Baseband
The System module (or Engine) consists of Baseband and RF sub-modules, each described
below.
Baseband Module, technical summary
Main functionality of the baseband is implemented into two ASICs: UPP (Universal Phone
Processor) and UEM (Universal Energy Management).
UPP8M
v2
COMBO
FLASH
128Mbit
Flash
8Mbit
SRAM
Keyboard
Keyboard
Illumination
LCD
Passive colour STN
SIM
Battery
BLD-3
RF Interface
UEMK
1.8 V
IR
Vibra
Accessory
Regulator
Charger
ack
DC
IHF
Mo/St Amp
LM4855
System connector
Tomahawk
Figure 2: Baseband block diagram
FM radio
TEA5767
CIF VV6450
HWA
STV0900
Baseband is running from power rails 2.8V analog voltage and 1.8V I/O voltage. UPP core
voltages can be lowered down to 1.0V, 1.3V and 1.5V. UEM includes 6 linear LDO (Low
Drop-Out) regulator for baseband and 7 regulators for RF. It also includes 4 current
sources for biasing purposes and internal usage. UEM also includes SIM interface which
has supports both 1.8V and 3V SIM cards. Note: 5V SIM cards are no longer supported by
DCT-4 generation baseband.
A real time clock function is integrated into the UEM, which utilizes the same 32kHz
clock supply as the sleep clock. A backup power supply is provided for the RTC-battery,
which keeps the real time clock running when the main battery is removed. The backup
power supply is a rechargeable surface mounted Li-Ion battery. The backup time with the
battery is 30 minutes minimum.
A UEM ASIC handles the analog interface between the baseband and the RF section.
Page 10 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
UEM provides A/D and D/A conversion of the in-phase and quadrature receive and transmit signal paths and also A/D and D/A conversions of received and transmitted audio signals to and from the user interface. The UEM supplies the analog TXC and AFC signals to
RF section according to the UPP DSP digital control. Data transmission between the UEM
Technical Summary
Baseband of the RM-37 is running from power rails 2.8V analog voltage and 1.8V I/O
voltage. UPP core voltages can be lowered down to 1.0V, 1.3V and 1.5V. UEM includes 6
linear LDO regulators for baseband and 7 regulators for RF. It also includes 4 current
sources for biasing purposes and internal usage. UEM also includes SIM interface which
has supports both 1.8V and 3V SIM cards.
A real time clock function is integrated into the UEM, which utilizes the same 32kHz
clock supply as the sleep clock. A backup power supply is provided for the RTC-battery,
which keeps the real time clock running when the main battery is removed. The backup
power supply is a rechargeable surface mounted Li-Ion battery. The backup time with the
battery is 30 minutes minimum.
A UEM ASIC handles the analog interface between the baseband and the RF section.
UEM provides A/D and D/A conversion of the in-phase and quadrature receive and transmit signal paths and also A/D and D/A conversions of received and transmitted audio signals to and from the user interface. The UEM supplies the analog TXC and AFC signals to
RF section according to the UPP DSP digital control. Data transmission between the UEM
and the UPP is implemented using two serial busses, DBUS for DSP and CBUS for MCU.
There are also separate signals for PCM coded audio. Digital speech processing is handled
by the DSP inside UPP ASIC. UEM is a dual voltage circuit, the digital parts are running
from the baseband supply 1.8V and the analog parts are running from the analog supply
2.78V. Also VBAT is directly used (Vibra, LED-driver, Audio amplifier).
The baseband supports both internal and external microphone inputs and speaker outputs. Input and output signal source selection and gain control is performed by the UEM
according to control messages from the UPP. Keypad tones, DTMF, and other audio tones
are generated and encoded by the UPP and transmitted to the UEM for decoding. An
external vibra alert control signals are generated by the UEM with separate PWM outputs.
RM-37 has two serial control interfaces: FBUS and MBUS. FBUS can be accessed through
a test pad and the System Connector as described later. The MBUS can be accessed
through the test pads as described in section MBUS Interface
EMC shielding is implemented using a metallized plastic frame. On the other side, the
engine is shielded with PWB grounding.
Environmental Specifications
Temperature Conditions
o
Full functionality through ambient temperature range -10
Issue 1 04/2004 © Nokia Corporation. Page 11
C to +55 oC.
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Reduced functionality between -25 oC to -10 oC and +55 oC to +75 oC.
Humidity and Water Resistance
Full functionality in humidity range is 5% - 95%.
Condensed or dripping water may cause intermittent malfunctions. Protection against
dripping water is implemented.
Page 12 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
Baseband Technical Specifications
Absolute Maximum Ratings
Signal Note
Battery Voltage (Idle) -0.3V - 5.5V
Battery Voltage (Call) Max 4.8V
Charger Input Voltage -0.3V - 16V
DC Characteristics
Regulators and Supply Voltage Ranges
Battery Voltage Range
Signal Min. Nom Max Note
VBAT 3.1V 3.6V 4.2V (charging
high limit voltage)
3.1V SW cut off
Camera Regulator
Vout/ V (min) Vout/ V (typ) Vout/ V (max) Notes
1.728 1.80 1.872 Imax=150mA
BB Regulators
Signal Min. Nom Max Note
VANA 2.70V 2.78V 2.86V I
VFLASH1 2.70V 2.78V 2.86V I
VFLASH2 2.70V 2.78V 2.86V I
VSIM 1.745V
2.91V
1.8V
3.0V
1.855V
3.09V
max
max
I
sleep
max
I
max
I
sleep
= 80mA
= 70mA
= 1.5mA
= 40mA
= 25mA
= 0.5mA
VIO 1.72V 1.8V 1.88V I
VCORE 1.0V
1.235V
1.425V
1.710V
1.053V
1.3V
1.5V
1.8V
1.106V
1.365V
1.575V
1.890V
= 150mA
max
I
= 0.5mA
sleep
I
= 200mA
max
= 0.2mA
I
sleep
Default value 1.5V
Issue 1 04/2004 © Nokia Corporation. Page 13
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Accessory Regulator
Signal Min Nom Max Note
Vout 2.72V 2.80 2.88V I
max
= 70mA
RF Regulators
Signal Min Nom Max Note
VR1A 4.6V 4.75V 4.9V I
VR2 2.70V
3.20V
2.78V
3.3V
2.86V
3.40V
VR3 2.70V 2.78V 2.86V I
VR4 2.70V 2.78V 2.86V I
VR5 2.70V 2.78V 2.86V I
VR6 2.70V 2.78V 2.86V I
VR7 2.70V 2.78V 2.86V I
max
I
max
max
max
I
sleep
max
I
sleep
max
I
sleep
max
= 10mA
= 100mA
= 20mA
= 50mA
= 0.1mA
= 50mA
= 0.1mA
= 50mA
= 0.1mA
= 45mA
Current Sources
Signal Min Nom Max Note
IPA1 and IPA2 0mA - 5mA Programmable, +/-6%
IPA3 and IPA4 50µ A 100µ A 105µ A V
V
IPA1,VIPA1
IPA1
= 0V - 2.7V
= 0V - 2.7V
Page 14 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
Power Distribution diagram
Issue 1 04/2004 © Nokia Corporation. Page 15
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Baseband External and Internal Signals and Connections
This section describes the external and internal electrical connection and interface levels
on the baseband. The electrical interface specifications are collected into tables that
cover a connector or a defined interface.
Figure 3: RF/BB connections block diagram
PA
DC_sense
Battery
13
Iref1,2
PCS LNA+
SAW's
3
4
TxC
RFtemp
Vreg
UEM
RFI and CODEC
BB & RF
regulators,
charger switch
2
2
HELGA
TxI/Q
7
4
RxI/Q
2
VCO
VRef's
2
RF
Control
Lines
6
VCTCXO
Data to
& from RF
Vmode
CODEC
Samples
UPP
UI
Module
Page 16 © Nokia Corporation. Issue 1 04/2004
Company confidential RM-37
CCS Technical Documentation 7-System Module and User Interface
Camera interface
Table 1: Power supply characteristics
Signal name Type Min Typical Max Unit Description
VIO IN 1.7 1.8 1.9 V Digital supply
VANA IN 2.7 2.78 2.9 V Analogue supply
GND 0 V System GND
Table 2: DC characteristics
Signal
name
CSX IN H: 0.7xVIO
DaClk IN H: 0.7xVIO
TxDa OUT H: 0.8xVIO L: 0 H: VIO
RxDa IN H: 0.7xVIO
ExtClk IN 0.5Vp-p 1Vp-p VIOp-p V All modes
VCtrl IN H: 0.7xVIO
Signal
name
DaCLK IN 0 -
Type Min Typical Max Unit Description
H: VIO
L: 0
L: 0
L: 0
L: 0
NOTE! H stands for high signal level and L for low signal level.
Table 3: AC Characteristics
Type Min Typ Max Unit Description
L: 0.3xVIO
H: VIO
L: 0.3xVIO
L: 0.2xVIO
H: VIO
L: 0.3xVIO
H: VIO
L: 0.3xVIO
1
8.8
V Camera chip-select
V Voltage levels
V Data to transmit, camera
V Data to receive
V Logic 0: shutdown.
MHz Frequency
(active low)
interrupt (active low)
45/55 50/50 55/45 % Duty cycle
ExtClk IN 12.9 13.0 13.1 MHz External system clock
(mode 4)
NOTE! However, DaClk frequency will not exceed ExtClk/2.
Issue 1 04/2004 © Nokia Corporation. Page 17
RM-37 Company confidential
7-System Module and User Interface CCS Technical Documentation
Integrated HF Speaker
Signal Min Nom Max Condition Note
IHFP
0.75V 0.8V
IHFN
0.75V 0.8V
2.0 V
0.85V
2.0 V
0.85V
pp
pp
AC
DC
AC
DC
Differential output
(V
= 4.0 Vpp)
diff
FM Radio Interface
BB Signal FM Radio Signal Min Nom Max Condition Note
VFLASH2 Vcca 2.7V 2.78V 2.86V I
Vcc(vco) 2.7V 2.78V 2.86V I
Vccd 2.7V 2.78V 2.86V I
GenIO(3) FMClk 1.4V
0
30ppm Stability
GenIO(8) FMWrEn 1.4V
0V
1.8V 1.88V
0.4V
32kHz Frequency Also 6.5 MHz can be
1.8V 1.88V
0.4V
High
Low
High
Low
=10.5 mA
max
=940 µA
max
= 3.9 mA
max
Reference clock for
FM radio module
used
Write/Read enable
GenIO(12) FMCtrlDa 1.4V
0
GenIO(11) FMCtrlClk 1.4V
0
FM Antenna RFI1, RFI2 76 MHz 108 MHz FM Input frequency
FM Radio L
FM Radio R
VAFL
VAFR
24 dB 30 dB Channel sep-
54dB 60 dB (S+N)/N
1.8V 1.88V
0.6V
1.8V 1.88V
0.6V
1 MHz Frequency
100mV Audio level
2% Harmonic
High
Low
High
Low
aration
distortion
Bi-directional data
Page 18 © Nokia Corporation. Issue 1 04/2004