Text preview for : 07-rh12-sysmod.pdf part of NOKIA 6230_6230i Servicemanual and Video
Back to : 6230 - 6230i_SM.zip.part0 | Home
CCS Technical Documentation RH-12/RH-28 Series Transceivers
7 - System Module
Issue 1 02/04
Nokia Corporation
RH-12/RH-28 System Module
CCS Technical Documentation
[This page left intentionally blank]
Page 2
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation Table of Contents
RH-12/RH-28 System Module
Page No Glossary of Terms..................................................................................................................................... 5 Baseband Module Introduction ........................................................................................................... 8 Features ...................................................................................................................................................... 9 Environmental Specifications............................................................................................................ 10 Normal and extreme voltages .........................................................................................................10 Temperature conditions ....................................................................................................................10 Humidity ...............................................................................................................................................11 Vibration ...............................................................................................................................................11 ESD strength ........................................................................................................................................11 Technical Specifications ..................................................................................................................... 12 UEME ......................................................................................................................................................12 DC Characteristics .......................................................................................................................... 14 Power Distribution.......................................................................................................................... 15 Tiku .........................................................................................................................................................16 Main Features .................................................................................................................................. 16 Memory Block.................................................................................................................................. 17 Memory .................................................................................................................................................17 NOR Flash.......................................................................................................................................... 17 NAND Flash....................................................................................................................................... 17 SDRAM............................................................................................................................................... 17 Charging ................................................................................................................................................18 Battery ...................................................................................................................................................20 Interfaces ..............................................................................................................................................20 FM-Radio........................................................................................................................................... 20 IrDA..................................................................................................................................................... 21 Camera............................................................................................................................................... 23 SIM...................................................................................................................................................... 25 MMC................................................................................................................................................... 26 Bluetooth .......................................................................................................................................... 27 FBUS ................................................................................................................................................... 29 USB ..................................................................................................................................................... 30 UI Interface....................................................................................................................................... 31 RF Interface ...................................................................................................................................... 36 Test Pattern ...................................................................................................................................... 36 Test Points............................................................................................................................................... 38 Main board A side of PWB ...............................................................................................................38 Main board B side of PWB ...............................................................................................................39 RF Module Introduction...................................................................................................................... 40 RF Frequency Plan ..............................................................................................................................41 DC Characteristics ..............................................................................................................................41 Regulators......................................................................................................................................... 41 Typical Current Consumption...................................................................................................... 42 Power Distribution.......................................................................................................................... 43 RF Characteristics ...............................................................................................................................43 RF Block Diagram ...............................................................................................................................46 Frequency Synthesizers................................................................................................................. 47 Receiver ............................................................................................................................................. 47 Nokia Corporation Page 3
Issue 1 02/04
RH-12/RH-28 System Module
CCS Technical Documentation 47 47 48 49 49 49
Transmitter ....................................................................................................................................... Front End........................................................................................................................................... Power Amplifier............................................................................................................................... RF ASIC Helgo.................................................................................................................................. AFC function .................................................................................................................................... Antenna .............................................................................................................................................
Page 4
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Glossary of Terms
ACI ADC AMSL ASIC ASIP ADSP ARM BB BC02 CCP CDSP COF COG CSR CSTN CTSI DCT4.5 DSP EMC ESD FCI FR FSTN Accessory Control Interface Analog Digital Connector After Market Service Leader Application Specific Integrated Circuit Application Specific Integrated Passive Application DSP (expected to run high level tasks) Advanced RISC Machines Baseband Bluetooth module made by CSR Compact Camera Port Cellular DSP (expected to run low level tasks) Chip on foil Chip On Glass Cambridge Silicon Radio Color Super Twisted Nematic Clock Timing Sleep and Interrupt block of Tiku Digital Core Technology, generation 4.5 Digital Signal Processor Electro Magnetic Compatibility Electro Static Discharge Functional Cover Interface Full Rate Film compensated Super Twisted Nematic
Issue 1 02/04
Nokia Corporation
Page 5
RH-12/RH-28 System Module GSM HW IF IHF IMEI IR IrDa LCD LDO LED LPRF MCU NTC PA PDA PDRAM Phoenix PUP PWB PopPortTM RTC Global System Mobile Hardware Interface Integrated Hands Free
CCS Technical Documentation
International Mobile Equipment Identity Infrared Infrared Data Association Liquid Crystal Display Low Drop Out Light Emitting Diode Low Power Radio Frequency Microprocessor Control Unit Negative temperature Coefficient, temperature sensitive resistor used as an temperature sensor. Power Amplifier (RF) Personal Digital Assistant Program/Data RAM (on chip in Tiku) SW tool of DCT4.x General Purpose IO (PIO), USARTS and Pulse Width Modulators Printed Wired Board BB4.x system connector. It includes: USB, Stereo headset, Fbus. Real Time Clock, small circuitry that keeps track of updating the clock counter and the calendar. To keep it update without (or empty) battery, an alternative power source can be used: small battery or large capacitor. Single Access RAM
SARAM
Page 6
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation SIM SW SWIM SPR STI TCXO Tiku UEME UI USB UPP UPP_WD2 Subscriber Identification Module Software Subscriber / Wallet Identification Module Standard Product Requirements Serial Trace Interface Temperature controlled Oscillator Finnish for Chip, Successor of the UPP (Universal Phone Processor), Official Tiku3G Universal Energy Management Enhanced User Interface Universal Serial Bus Universal Phone Processor Communicator version of DCT4 system ASIC
RH-12/RH-28 System Module
Issue 1 02/04
Nokia Corporation
Page 7
RH-12/RH-28 System Module
CCS Technical Documentation
Baseband Module Introduction
This chapter describes the baseband module for the RH-12/RH-28 program. The baseband module includes the baseband engine chipset, the UI components and acoustical parts of the transceiver. The RH-12/RH-28 is a hand-portable GSM900/GSM1800/GSM1900 phone for the Smart Classic segment, having the DCT4.5 generation baseband- and RF circuitry. The key driver for this product is the implementation of EDGE, introducing true multimedia capability from WCDMA in GSM single mode. RH-12/RH-28 is equipped with the DCT4 connector, supporting most of the DCT4 accessories. The battery interface is relative new consisting of only 3 connections. Standard battery will be the BL-5C battery with 850mAh.
Page 8
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Features
The HW specific features of the RH-12/RH-28 phone: · · · · · · · · · · · · · · · Monoblock phone with easy exchangeable covers. Tripleband Engine (900, 1800, 1900), US variant (850, 1800, 1900) E-GPRS MSC 5 (2+2) FR, EFR, AMR codecs Integrated Camera and Colour Display 128x128 MMS (Multi Media Messaging), Java MIDP, SyncML & xHTML MMC for storing pictures and sound SWIM (dual function SIM) MP3 Player USB Interface to PC IrDA Bluetooth FM Radio IHF PopPortTM Accessory support
Accessories: · · · · · Chargers: ACP7, ACP8, ACP9, ACP-12, LCH-8, LCH-9, LCH-12, AC-1 and DC-1. Car accessories: CARK126, CARK112, BHF-1 and RAN CARKIT 610/810 (BT). Audio accessories: HDB-4, HS-5, LPS-4, HS-10, HS-6, SU-3, HF-2, HDS-3, HDW1, HDW-2, DT-1 Connectivity accessories: DCV-14, DKU-2, DTL-4 and HDA-10. Accessory covers: X-press on covers.
Issue 1 02/04
Nokia Corporation
Page 9
RH-12/RH-28 System Module
CCS Technical Documentation
Environmental Specifications
Normal and extreme voltages
Following voltages are assumed as normal and extreme voltages for used battery:
Table 1: Normal and extreme voltages Voltage General Conditions Nominal voltage Lower extreme voltage Higher extreme voltage (fast charging) HW Shutdown Voltages Vmstr+ VmstrSW Shutdown Voltages Sw shutdown Sw shutdown Min Operating Voltage Vcoff+ Vcoff1 2
Voltage [V]
Condition
3,700 3,145 4,230 1 2
2,1 ± 0,1 1,9 ± 0,1
Off to on On to off
3,1 3,2
In call In idle
3,1 ± 0,1 2,8 ± 0,1
Off to on On to off
ADC settings in the SW might shutdown the phone above this value. During fast charging of an empty battery, the voltage might exceed this value. Voltages between 4.20 and 4.60 might appear for a short while.
Temperature conditions
· · · Operational temperature range (all specifications met within this range): 5°C.. +55°C (stationary use) Functional temperature range (reduced performance): 30°C.. +70°C Storage temperature range: 30°C.. +85°C
Temperatures at 10°C, +25°C and +55°C are used for the cpk analysis. The baseband module complies with the SPR4 Operating Conditions.
Page 10
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Humidity
Relative humidity range is 5...95%. The BB module is not protected against water. Condensed or splashed water might cause malfunction. Any submerge of the phone will cause permanent damage. Long-term high humidity, with condensation, will cause permanent damage because of corrosion. The baseband module complies with the SPR4 Operating Conditions.
Vibration
The baseband module complies with the SPR4 Operating Conditions.
ESD strength
Standard for electrostatic discharge is IEC 61000-4-2 and level 4 requirements are fulfilled. The baseband module complies with the SPR4 Operating Conditions.
Issue 1 02/04
Nokia Corporation
Page 11
RH-12/RH-28 System Module
CCS Technical Documentation
Technical Specifications
UEME
UEME is the Universal Energy Management Enhanced IC for digital hand portable phones. In addition to energy management, the UEME functionality performs all baseband mixedsignal functions. The different states of the UEME are explained below. No supply In the NO_SUPPLY mode the UEME has no supply voltage (VBAT < VMSTR and VBACK V_BUCOFF+). The regulator VRTC that supplies the real time clock is disabled in the BACK_UP mode. Instead the unregulated backup battery voltage VBACK supplies the output of the VRTC. All other regulators are disabled and the phone has no functionality. The UEME will recover from the BACK_UP mode into the RESET mode if VBAT rises above VMSTR+. Power off In order for the UEME to be in the PWR_OFF mode, it must have supply voltage (VBAT > VMSTR+). The VRTC regulator is enabled and supplying the RTC within the UEME. The UEME will enter the RESET mode after a 20 ms delay whenever one of the below listed conditions is logically true: · · · The power button is activated. Charger connection is detected. RTC alarm is detected.
The UEME will enter PWR_OFF from all other modes except NO_SUPPLY and BACK_UP if the internal watchdog elapses.
Page 12
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation Reset
RH-12/RH-28 System Module
When the UEME enters the RESET mode from the PWR_OFF mode the watchdog is enabled. If the VBAT fails to rise above the power-up voltage level VCOFF+ (3.1 V), before the watchdog elapses, the UEME will enter the PWR_OFF mode. Otherwise, after a 200 ms delay the regulator VFLASH1 will be enabled and after an additional delay of 500 _s, the regulators VANA, VIO, VCORE and VR3 will be enabled. All other regulators i.e. VFLASH2, VSIM, VR1, VR2 and VR4 VR7 are software controlled and disabled by default. After an additional delay of 20 ms, the UEME enters the PWR_ON mode. Power on In PWR_ON the UEME is fully functional in the sense that all internal circuits are powered up or can be by means of software. The UEME will enter the PWR_OFF mode if VBAT drops below VCOOF- for a period of time longer than 5 _s. The UEME will furthermore enter the PWR_OFF mode if either of the watchdogs Operational State Machine (approx. 100 _s), Security (32 sec.) or Power Key (4 sec.) elapses or if any of the regulators triggers the thermal protection circuitry. Sleep The UEME can be forced into the SLEEP mode by the Tiku by setting the input SLEEPX low for more than 60 _s. This state is entered when the external Tiku activity is low (phone in sleep) and thereby lowering the internal current consumption of the UEME. The regulator VANA is disabled and VR1 VR7 are either disabled or in low quiescent mode. From SLEEP the UEME enters PWR_ON if SLEEPX goes high, the PWR_OFF mode if watchdog elapses or the BACK_UP mode if VBAT drops below VMSTR-. Protection mode The UEME has two separate protection limits for over temperature conditions, one for the charging switch and one for the regulators. The temperature circuitry measures the onchip temperature. In case of charging over temperature, the circuit turns the charging switch off. In case of over temperature in any of the regulators, the UEME powers off.
Issue 1 02/04
Nokia Corporation
Page 13
RH-12/RH-28 System Module
CCS Technical Documentation
DC Characteristics The figures in the following table reflect the specification of the voltage and current regulators within the UEME.
Table 2: UEME Regulator Output and State in Sleep Voltage (V) Name Min 2.70 Nom 2.78 Max 2.86 Current (mA) Max 80 Sleep Max Filter Comment
VANA
2
5uA minimum for stability. Controlled by the UEME. Disabled in Sleep mode. 5uA minimum for stability. Controlled by the UEME. 5uA minimum for stability. Controlled by the UEME. 5uA minimum for stability. MCUSW is setting the voltage. Voltage level is set by MCUSW. 5uA minimum for stability. 5uA minimum for stability. 5uA minimum for stability. Disabled in Sleep mode. The maximum current is for 1 regulator active. If both are used, maximum 5mA each. 100uA minimum for stability. Active during (Sleepmode). 100uA minimum for stability. Controlled by the UEME. 100uA minimum for stability. 100uA minimum for stability. 100uA minimum for stability. 100uA minimum for stability.
VFLASH1 VIO VCORE VAUX1 VAUX2 VAUX3 VSIM VR1A/B
2.61 1.72 1.41 1.745 2.91 2.70 2.70 1.745 2.91 4.60
2.78 1.80 1.50 1.80 3.0 2.78 2.78 1.80 3.00 4.75
2.95 1.88 1.59 1.855 3.09 2.86 2.86 1.855 3.09 4.90
70 150 200 50 70 10 25 10
1.5 0.5 0.2 0.5 0.5 0.5 0.5 -
1 3 1 1 1 1 4
VR2 VR3 VR4 VR5 VR6 VR7
2.70 (2.61) 2.70 2.70 2.70 2.70 2.70
2.78 (2.78) 2.78 2.78 2.78 2.78 2.78
2.86 (2.95) 2.86 2.86 2.86 2.86 2.86
100 20 50 50 50 45
0.1 0.1 0.1 -
5 4 6 7 7 7
Page 14
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Power Distribution The connection of the miscellaneous power connection can be seen in the following overview.
Figure 1: Power distribution
VBUS
HF Speaker Amplifier
CHARGER
TOMAHAWK
NUT
VCC
VOUT
ACI
ESD
PAOUTN PAOUTP Vibra BuzzO PwrOnX
VCharOut
VCharIn
IR Module
UEME
LED driver
Vibra
ESD ESD
"On Key"
Display illumination VAUX2 VAUX3 VANA LCD Driver
VR1A 4.75V VR1B 4.75V VR2 VR3 VR4 VR5 VR6 VR7 2.78V 2.78V / 3.6V 2.78V / 3.6V 2.78V / 3.6V 2.78V / 3.6V 2.78V / 3.6V
BTEMP LS RF CODECS AUDIO CODEC DIGITAL BLOCKS BSI
2.78V 2.78V 2.78V
Parallel Display
2.78V VFLASH1
LED driver
ESD
Keyb Light
Keyboard
1.8/3.0V
VSIM
1.8/3.0V VAUX1 1.0-1.8V VCORE DIGITAL BLOCKS 1.8V 1,8V VIO
Memory Card
2.8V
LP3987
RF Regulators
BB Regulators DLight
VRefRF02 VRefRF01
PURX SleepClk
VBack
SleepX
UEMRstX
KLight
CCP Camera
FM Radio
VBack
VBAT_RF
VXO
HELGA RF
RFClock
TIKU EDGE
LM2708
1.5V VCORE
SDRAM 64Mb
BC02
FLASH 64Mb
BATT BSI
ZOCUS-C
FLASH 64Mb
Lynx Battery
VBAT
FCI
MAS9161
2.8V
Matrix
Power Distribution Diagram
Ver. 0.3 Søren Larsen, Copenhagen 15.05.2003 CONFIDENTIAL
Copyright 2002 Nokia Mobile Phones
Issue 1 02/04
Nokia Corporation
Page 15
RH-12/RH-28 System Module
CCS Technical Documentation
Tiku
This is the main digital baseband ASIC. Main Features The Tiku consists of the following sections: · · · · · · · · · · · · · · · · · · · · Arm 925 MPU A-DSP (Lead3 for Application sw 4KB ApiRam, 128KB saram, 32KB daram) C-DSP (Lead3 for Cellular sw 4KB ApiRam, 128KB saram, 32KB daram) DSP Co-processors (DCT and Motion Estimator) on both DSP Corona EDGE hardware accelerator Serial flash interface (SFI001) 2G Body logic, as in UPP-WD2 4Mb of pdram. Traffic controller for memory interface (dct4 flash/sram, sdram) General purpose USARTs SIM card interface 2nd SIM interface (used for MMC) I2C interface (used for FCI) GSM coder Interface control for: keyboard, LCD, Camera, audio and UEME control Accessory interfaces: IrDa and LPRF (Bluetooth) Handling of RF-BB interface I/O voltage = 1.8V, Core voltage = 1.5V TI 15C035 process (Tiku version 1.11) 288 pins uBGA, 0.5mm pitch, 12 mm x 12 mm package (Tiku version 1.11)
The Brain consists of 5 sections; the ARM925 Mega-Module, (consisting of the ARM9
Page 16
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
MCU, Cache memory, Parallel LCD Controller, and Traffic Controller), C-DSP Lead 3 Mega-Module, A-DSP Lead 3 Mega-Module, PDRAM, and PDA Peripherals. The ARM-Mega-Module has a Traffic controller, which provides the interface between the MCU, external memories, LCD controller, and internal busses. It also processes the data packages for memory access. The PDA Peripherals consists of Camera Compact Port (CCP) interface, Multi-Media Card (MMC), IR, USB, and Display interfaces. Memory Block For the MCU, TIKU includes ROM, 2 kbytes, that is used mainly for boot code of MCU. For the program memory, 4Mbit (256K x 16bit, organized as 8 banks of 64Kb) PDRAM is integrated. RAM is mainly for MCU purposes. The MCU can also store a code into the external flash memory, which consist of one NOR flash and one NAND flash. The size of the NOR flash is 128Mbit (8Mbit x16bit) and it's used for primary application code. The secondary flash is a NAND flash, which is used for slow accessible data such as user-settings, pictures, ringtones etc. (non speed dependent code). The size of the NAND flash is 64Mbit (4096K x 16 bit).
Memory
The external memory interface consists of three different type of memory, used for different purposes. NOR Flash The NOR flash is used as the primary data storage. Here the MCU sw package is stored. Furthermore, the memory is capable of handling burst mode (multiplexed address/databus) and memory blocking, which is controlled by TIKU. NAND Flash The NAND flash is used as the secondary data storage, mainly used for user specific data like sounds, games, pictures and other applications. This device also stores language package. SDRAM The SDRAM is used as a data handling memory. The SDRAM interface to TIKU is different than the 24 lines multiplexed data/address bus used for the flash memory. First the address is set up then the data is latched out in a normal asynchronous/synchronous way. In the synchronous mode, the data is clocked out at a maximum frequency at 133MHz.
Issue 1 02/04
Nokia Corporation
Page 17
RH-12/RH-28 System Module
CCS Technical Documentation
Charging
The RH-12/RH-28 program is conform to the global NMP Charger Interface. This comprehensive interface ensures future proofing should new chargers become available. Charging is controlled by the UEME and external components are needed for EMC, reverse polarity and transient protection of the input to the baseband module. The charger connection is through the system connector interface. The DCT4.5 baseband is designed to support DCT3 chargers from an electrical point of view. Both 2- and 3-wire type chargers are supported. 3-wire chargers are treated as 2-wire (PopPortTM specifications). The operation of the charging circuit has been specified in such a way as to limit the power dissipation across the charge switch and to ensure safe operation in all modes.
Figure 2: Charging
TRANSCEIVER VBATBB 10nF GND GND 1uF 0R22 UEME Feedthrough cap VCHAROUT VCHARIN 27pF GND SMF16A GND 1uF GND Filter cap. 1000uF max VBATREGS Charger CHACON Section 1,5A CHARGER
GND
GND
Connecting a charger creates voltage on VCHAR input. When VCHAR input's voltage level is detected to rise above the VCHDET+ threshold by CHACON, the charging starts. The VCHARDET signal is generated to indicate the presence of the charger. However, detection output signal must be gated always to a logical `0' when MSTRX=`0', in order not to force logical high level to the UEME's internal blocks that are not supplied at the time. Level crossing detection of the VCHAR line is used to generate synchronizing pulses for UEME's state machine for control of rectifier type chargers. The VCHARDET output gives a logical `1' when the VCHAR input is detected to be above the VCHDET+ level and `0' when the VCHAR input level is below VCHDET.
Figure 3: Detection of charger / generation of charger synchronisation pulses
Page 18
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
In case the main battery is fully discharged and the UEME subsequently is without power, i.e. in NO_SUPPLY or BACKUP mode, the start-up charging circuitry is in control, giving the possibility to detect a charger and engage charging. If the VBAT level is detected to be lower than the master reset voltage (VMSTR-) the CHACON will charge the battery with a constant current of 100 mA until VBAT exceeds VMSTR+. When this happens, from a charging point of view, normal PWM charging situation resumes. A PWM signal is generated by the digital part of the UEME, which sources the CHACON. The frequency of the signal can be either 1 Hz or 32 Hz. If the connected charger is of a 2-wire kind, e.g. ACP- 7, the PWM signal has the frequency of 1 Hz. If the charger on the other hand is a 3-wire type, e.g. ACP-9, the switch is left on permanently and the 32 Hz PWM control signal routed to the charger in order to produce a constant voltage.
Issue 1 02/04
Nokia Corporation
Page 19
RH-12/RH-28 System Module
CCS Technical Documentation
Battery
Type: BL-5C Technology: Li-Ion. 4.2V charging. 3.1V cut-off Capacity: 850 mA/h (BSI=75K) The battery is a Li Ion based standard cell with LiMnO chemistry. This type of battery has a three-pin connector (BTEMP is not used).
Figure 4: BL-5C Battery
Table 3: BSI Levels BL-5C Battery Mode BSI (kOhm / Min Normal Service 3.2 Type 75 3.3 3.4 Max Used for calculating the Capacity (BL5-C = 850mA) Pull-down resistor in battery. Used for fast power-up in production (LOCAL mode), R/D purposes or in aftersales, 1% tolerance resistors shall be used. Pull-down resistor in battery, used in production for testing purposes. 1% tolerance resistors shall be used. Description
Test Banned
6.7
6.8
6.9 <3.2
Inside the battery, an over-temperature and an over-voltage protection circuit are implemented. Care should be taken with the temperature. If the battery is charged above 60 degrees Celsius, overheating might occur.
Interfaces
FM-Radio The FM radio circuitry is implemented using a highly integrated radio IC, TEA5767HN. The MCU SW controls the FM radio circuitry through serial bus interface. The stereo output is fed to the UEME on one of the microphone inputs.
Page 20
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
The antenna of the FM Radio is created with the headset. The wires of the headset are used as poles of the antenna. Only version TEA5767HN-VF1 and newer can be used. The previous versions have a 2.78V digital interface and need level shifters. While W/R (WRITE/READ) is HIGH the TIKU can transmit data to the TEA5767. At the rising edge of the Bus clock, the register shifts and accepts the stable bit. At clock low the TIKU writes the following bit. A tuning function is started when the W/R signal changes from HIGH to LOW. Was a search tuning requested sent, the IC autonomously starts searching the FM band. Search direction and search stop level can be chosen. Was a station with a fieldstrength equal or higher than this stop level found, the tuning system stops and the Found Flag bit is set to "HIGH". Was during search a band limit reached, the tuning system stops at the band limit and the Band Limit flag bit is set to high. Also the Found Flag is set to high in this case. While Write/Read is "LOW" the Tiku EDGE can read data. At the rising edge of the BUS Clock, data will be shifted out of the register. This data is available from the point where the bus clock is HIGH until the next rising edge of the clock occurs. Interface to Engine
Figure 5: FM Radio schematic
TIKU
GPIO25 GPIO24 GPIO22 GENIO8 FMCtrlDa FMCtrlClk FMWrEn FMClk
UEME
1
MIC3NR
MIC3PR
MIC3N MIC3P
VIO
TEA5767
SDA SCL W/R VAFL VAFR
Filter
C1
GND
Ant Clk VDIG
L1
C2 C3 C4
14
VFLASH1 1U
Tomahawk
GND
IrDA The RH-12/RH-28 phone supports data connectivity via the Infra Red link. The IR interface is integrated into the TIKU and the main external component is the IR module. The datarate supported will be 1.152Mbit.
Issue 1 02/04
Nokia Corporation
Page 21
RH-12/RH-28 System Module
CCS Technical Documentation
Interface to Engine This interface receives data from and transmits data to peripheral equipment. It transforms serial data to parallel data for the MCU or DSP and vice versa. The IAccIF IR interface is divided into two blocks, MIR and FIR. IR is a UART-based block for baud rates in the range 9600 bit/s to 115.2 kbit/s, and FIR is for the 1.152 Mbit/s rate. Both parts have the same physical connections so they cannot be used simultaneously. The shut down pin SD can power off the module. The maximum distance in the RH-12/RH-28 phone configuration is approximately 20 centimetres. The SIR block (9600 bit/s to 115.2 kbit/s): · · Supports IrDA format with speeds up to 115.2 kbit/s Supports Phonet format, having all the same baud rates (9600 bit/s 115.2kbit/s) as Fbus.
The FIR block (1.152 Mbit/s): · · Supports IrDA format with baud rate 1.152 Mbit/s. Both these blocks are sub-divided into IR transmitter and IR receiver. Interconnection details are shown in the following figure and table.
Figure 6: IRDA Interconnections between Tiku and UEME
VBATT
UEME
IR Module
VIO VFLASH1
Tiku EDGE
IRSD(GenIO23) IrRx (GPIO 0) IrTx (GPIO 1)
LEDA VLOGIC Vdd LEDC GND SD RxD TxD
Table 4: IRDA connections between Tiku EDGE and the IR module Name TXD RXD I/O O I Engine connection TIKU TIKU GPIO1: [IRTx] GPIO0: [IRRx] Description Transmitted data output to IR Module Received data input from IR Module.
Page 22
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
SD VLOGIC VCC LEDA O O O O TIKU UEME UEME VBATT GenIO23: [IRSD] VIO VFLASH1 IR Module shut down.
RH-12/RH-28 System Module
Supply voltage for digital parts, 1.8 V. IR Module supply voltage, 2.78 V. IR LED Anode supply voltage.
Camera The RH-12/RH-28 phone is equipped with a VGA resolution camera with an active area of 660H x 492V. Pictures delivered to engine are standard VGA (640 x 480). This camera is able to transfer up to 30 frames per second in the viewfinder mode and 15 frames per second in full resolution mode (VGA). Full resolution pictures are in RGB 5:6:5 or YUV 4:2:2 (10 bits raw sensor resolution). The camera used is a Mirage-1 TCM8100MD module. Mounting The camera is placed physically almost inside the antenna on the backside of the phone PWB. The camera fixture (spring type, see the figure below) is located between the RF shielding cans. Shielding is done in a combination of metalized plastic housing of the camera module and ground connected spring/clip fixture. Experience shows that good shielding is necessary. The metalized housing and the spring/ clip will shield the camera. The hole for the lens is kept as small as possible to avoid direct EMC entrance into camera module by lens opening.
Figure 7: Camera Module Mounting
Lens Spring/clip fixture Springs CMOS sensor
Camera module (metalized plastic)
PWB Camera connector
Interface to Engine The camera is connected to the TIKU via a dedicated differential camera bus called CCP. The control of the camera is routed through normal-type general I/O ports. The camera uses 2 different supplies; analog and digital supply.
Issue 1 02/04
Nokia Corporation
Page 23
RH-12/RH-28 System Module
Figure 8: Camera Interface
Camera
CCPDATAP 1 3 1 2 1 0 9 7 6 5 4k7 3p3 XSHUTDOWN 4 L 3 CCP(0) 100R CCP(1) CCP(2) VIO CCP(3) 4k7 4k7 100R C1
CCS Technical Documentation
TIKU
CIFDaP E4 CIFDaN D2 F4 CIFClkN L 4 L 7 K3 GenIO26 (SDA (I2C) CAM) GenIO25 (SCI (I2C) CAM) GenIO24 CAMClk) CIFClkP
CCPDATAN CCPCLKP
CCPCLKN SDA SCL EXTCLK
GenIO27 CAMVCtrl)
UEME
DGND VDIG DGND VANA AGND SHIELD 1 4 1 1 8 3 2 1 100n 100n 27p 600R/100MHz 1 3 1 3 27p VCORE
600/100MHz
VFLASH1
Power supply to the camera module doesn't need to be shut down when the camera is in the idle mode. The camera uses very low stand-by current (1 mA in current spec).
Page 24
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation SIM
RH-12/RH-28 System Module
The UEME contains the SIM interface logic level shifting. The SIM interface can be programmed to support 3V and 1.8V SIMs. The SIM interface is powered up when the SIMCardDet signal indicates, "card in". This signal is derived from the BSI signal. Interface to Engine
Figure 9: TIKU/UEME SIM Interface Connections
SIM
C5 C6 C7 C8
UEME
SIMData SIMClk
GND
Tiku
Data SIMClk SIMIO Data SIMClk SIMIO
GND
SIMIF Block
C1
C2
C3
C4
SIMRst
UIF Block
VSIM
UEME Dig. Logic
UEMInt CBusDa CBusEnX CBusClk
From Battery type contact
BSI
The internal clock frequency from the CTSI Block is 13 MHz in GSM.
Issue 1 02/04
Nokia Corporation
Page 25
RH-12/RH-28 System Module
CCS Technical Documentation
Figure 10: SIM Interface Data
MMC The RH-12/RH-28 phone is equipped with a standard MMC card connector. The MMC card is physically placed under the battery, on top of the BB shielding can. The MMC card can be replaced when the phone is powered off, and the b-cover and battery are removed. The RH-12/RH-28 phone is able to accept all known high and dual voltage types of MMC cards. Only limitation is a maximum current withdrawal of 150 mA, where the maximum current class of MMC cards is 200mA.
Table 5: VMMC power specifications Name Voltage (V) Min VMMC 2.76 Nom 2.85 Max 2.94 Current (mA) Max 150 1 Filter Comment
Page 26
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Mounting The MMC card is mounted as shown in the figure below, seen from the backside of the phone, with the b-cover and battery removed. The MMC card slides in from the right side.
Figure 11: MMC Card Placement
Interface to Engine The MMC card is connected to the engine at UEME. MMC uses the dedicated MMC/secondary SIM (SWIM) card interface. As it can be seen in the figure below, the MMC card uses an external regulator VMMC as supply.
Figure 12: MMC Card Engine Interface
Tiku EDGE
UEME
LDO Voltage regulator
2,85V
MMC Card
Level shifters
GPIO15 GPIO17 GPIO19 GPIO16 GPIO18
GEN18i01 GEN18i02 GEN18i03 GEN18i04 GEN18i05
GENIO28i01 GENIO28i02 GENIO28i03
MMC Clock MMC Cmd MMC Data
Bluetooth The Bluetooth solution for the RH-12/RH-28 phone is a single chip solution designed by CSR.
Issue 1 02/04
Nokia Corporation
Page 27
RH-12/RH-28 System Module Interface to Engine
Figure 13: BT HW Interface
Vbatt (3 - 5,4V)
CCS Technical Documentation
2,8V LDO PURX ENABLE
VIO
RF Filter + Balun
VDD_IO XTAL_IN VREG_IN TX_A TX_B
RF_Clock
BB 4.5
PCM_CLK PCM_IN PCM_OUT PCM_SYNC BT_ResetX UART_RX UART_TX UART_RTS UART_CTS
PCM_CLK PCM_OUT PCM_IN PCM_SYNC RESETX UART_TX UART_RX UART_CTS
1,8V LDO
VDD_ANA
BC02
VDD_RADIO VDD_VCO VDD_CORE VDD_MEM FLASH_EN
BT_WAKEUP HOST_WAKEUP
UART_RTS_P - PIO(2) UART_CTS_P - PIO(3) BT_WAKEUP - PIO(4) HOST_WAKEUP - PIO(6)
Power Management The external BT regulator is enabled by PURX, witch is an internal UEME reset signal. This signal is high whenever the phone is powered on, which also is the case in sleep. This means that the BC02 module power is always on. Due to this, the modules use sw power down, witch results in a constant current consumption of approx. 100µA, when the BC02 module is in sleep. Sw Interface Host and Bluetooth module interface can be logically divided into audio, user data and control interfaces. User audio at 8 ksamples/s is exchanged between the host and the Bluetooth module on a PCM connection. (Optionally, the audio data can be multiplexed on a logical UART channel). Accessorey Interface (ACI) ACI (Accessory Control Interface) is a point-to-point, Master-Slave, bi-directional serial bus. ACI supports the following features: · The identification of accessory type is provided · The insertion and removal detection of an accessory device
Page 28
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation · · Providing power to the accessory: 200mW Power out Reference voltage to the accessory
RH-12/RH-28 System Module
The insertion / removal detection is provided by the HeadInt input.
Figure 14: ACI schematics
Phone Board TIKU
ARM IRQ FIQ CBUS PUP Level Shifter ACI Block RX TX HeadInt Comp. Vhead
UEME
ACI Accessory
VAUX2 Vflash1 VFLASH1 120k GND VOUT Cbypass
ACI ASIC Tomahawk
Authentication
Ccom 56K GND GND GND GND
ACI HEADINT
Comm. Logic RC Clock
EEPROM I/O Logic
GND
The Vout pin on the PopPortTM provides external power to accessories. The Vout is supplied by VAUX2 and can be controlled by the UEME. VAUX2 is short circuit protected.
Table 6: Vout specifications Voltage (V) Name Min 2.70 Nom 2.78 Max 2.86 Current (mA) Max 70 Sleep Max 0.5 Filter Comment
VAUX2
1
FBUS More intelligent accessories can use the serial FBUS connection. These devices can use Vout as the power supply and ACI for identification. FBUS is an asynchronous data bus having separate TX and RX signals. Default bit rate of the bus is 115.2 Kbit/s. FBUS is mainly used for controlling the phone in the production and for interface to PC via serial cables. Tiku can also support fast bus. This is FBUS with a bitrate of 1.2Mbit.
Issue 1 02/04
Nokia Corporation
Page 29
RH-12/RH-28 System Module Fbus is using the same pins as the USB connection.
Table 7: Fbus signals Voltage (V) Min 1.95 0 1.95 0 Nom 2.78 0.20 2.78 0.20 Max 3.00 0.83 3.00 0.83 12.5ns
CCS Technical Documentation
Name FBUS RX
Name VIH VIL
Comment 0.7*VFLASH1 0.3*VFLASH1 0.7*VFLASH1 0.3*VFLASH1 For Rx and Tx signals
FBUS TX
VOH VOL
Rise Time
USB The Nokia USB device solution is supported using the Wireless 2 Function Controller (W2FC) core. This core is included in the TIKU ASIC. The core completes several USB functions automatically and is controlled by the ARM9 MCU. NUT provides the interface between the ASIC's 1.8 V bus and the 3.3 V USB bus. In addition, NUT is capable of transmitting and receiving Fbus signals to and from the Fbus UART in Tiku. Nokia USB Transceiver (NUT) is fully compliant with the Universal Serial Bus Specification Rev. 1.1. NUT is able to transmit and receive serial data at full-speed (12 Mbit/s). The USB signal ESD protection and line matching resistance, and USB pull-up resistor is included to the USB ASIP. This component also includes ESD protection for VOUT and ACI system connector pins.
Page 30
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
Figure 15: USB Circuit
RH-12/RH-28 System Module
UI Interface Display Unit Hardware Interface: The Display Unit interface is a parallel interface consisting of the following: · 8-bit data bus (DISPDATA(7:0))
· Write enable WRX · Read enable RDX A 24-pin connector as shown in the figure below provides the interface between the Display Unit and the Engine PWB. Internally, the TIKU DIF block has interfaces with the VIA bus and the secondary DMA controller. Interconnection details are shown in the figure below.
Issue 1 02/04
Nokia Corporation
Page 31
RH-12/RH-28 System Module
CCS Technical Documentation
Figure 16: Display Unit Connections
Tiku
DIFDa[7:0] WRX RDX A0 TE RESETX
Display Unit
UEME
VIO VFLASH1 P_S
LED Drivers
VLED1+ VLED2+ VLED3+ VLEDCSX GND GND GND
GND
Keyboard and Navigator The RH-12/RH-28 phone consists of a mainboard with interface to the UI board. The connection between the main board and the UI board is via a board-to-board connector. The signals on the board-to-board connector are: · · Signals for LED's Signals for numeric Keypad and navigation key
The UI board is the base for the keyboard, which includes a five-way navigation key.
Page 32
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Figure 17: Keyboard layout with special keys for Navi_Up, Navi_Down and Navi_Select
Issue 1 02/04
Nokia Corporation
Page 33
RH-12/RH-28 System Module
CCS Technical Documentation
Table 8: Keyboard allocation Tiku GPIO
Keypad matrix and Navigation key Navigation Key Left Up Right Down Select GND Keypad Column 0 Column 1 Column 2 Column 3 Row 0 Row 1 Row 2 Row 3 Row 4
Tiku connection Tiku GPIO 6 GPIO 7 GPIO 13 Tiku GPIO 2 GPIO 3 GPIO 4 GPIO 5 GPIO 8 GPIO 9 GPIO 10 GPIO 11 GPIO 12
Description Separate controllines (Special keys) for Navi_Up, Navi_Down and Navi_Select. Navi_Left and Navi_Right are connected to the keyboard matrix
Tiku, Keyboard interface KDI in the UIF block,
Multiple-keypress: The RH-12/RH-28 phone will implement multiple keypress. By multiple keypress we mean the ability to detect that the user has pressed several keys simultaneously. The incitement for implementing this functionality is mainly the support for Java and the requirements set by games. UI software is capable of supporting multiple keypress, while core SW will have to incorporate this feature into the keyboard driver. With the current implementation, the design supports 2 simultaneously arbitrarily pressed keys in the keyboard matrix, together with any combination of Navi_Up, Navi_Select and Navi_Down (The special keys). LED Driver The RH-12/RH-28 phone UI module has 2 sets of LED's: · · 3 pcs. for LCD LED: White 2 pcs. for Keyboard (prepared for 4) LED: White, sidefiring
Both groups are individual controllable by the PWM output signal from UEME ASICs Page 34 Nokia Corporation Issue 1 02/04
CCS Technical Documentation
Figure 18: . LED driver block
RH-12/RH-28 System Module
Vbat
TK11851L Dlight UEME
LCD
Keypad configuration is optional
Intensity Control: LEDs are controlled by the PWM output from UEME UI block. The PWM controls can be adjusted in 8-bit step (256). The TK11851L contains a sleep mode. This mode is achieved when the Dlight signal is low. Vibra A vibra-alerting device is used to generate a vibration signal for an incoming call. The vibra is placed in the top of the phone. It is placed in the D-cover next to the microphone. The vibra is electrically connected to the PWB by spring contacts. The vibra is controlled from the UEME by a PWM (Pulse Wide Modulated) square wave signal. IHF-speaker Alerting tones and/or melodies are generated by an Internal HandsFree speaker, which is controlled by a PWM signal from the UEME. The ringer melodies will be optimised in MCU so the main frequency of any given melody is shifted to near the resonant peak. Sound hole is placed in the D-cover The IHF is electrically connected to the PWB by spring contacts.
Issue 1 02/04
Nokia Corporation
Page 35
RH-12/RH-28 System Module
CCS Technical Documentation
RF Interface The interface between baseband and the RF section is shown below:
Figure 19: Simplified RF/BB Interface Block Diagram
RF_BB interface
Antenna Switch
RF_RF interface
VCO PA LNA
4 GHz
LNA2, Mixer, AGC, DTOS TxPwrDet IPA1 IPA2 Tx IQ modulator
PLL, Dividers
HELGA
4 Tx I/Q
RFtemp TXC
AFC
RF BB Zocus-C Battery BL-5C
RFConvClk
2 Rx I/Q
7xVreg
2xVref
LPRF Clk 26 MHz
VCTCXO
26 MHz
UEME RFI and Codec BB & RF regulators
2 RxI/QDa 2 TxI/QDa 3 DBUS
TIKU MCU, ASIC, CDSP & ADSP
Test Pattern Test pads are placed on engine PWB for service. RH-12/RH-28 has adopted the two-row test pattern layout. The basic test pads (FBUS_TX, FBUS_RX, VPP, MBUS & GND) have a defined location, while optional signals can be on either side of the test pads. The `DAI_CLK' is included as an optional signal. For specific test pad placement, please see the figure below.
Page 36
Nokia Corporation
AuxD
BC 02 BT Module
Issue 1 02/04
RF-Bus: Ena, Clk & Data
Edge Mode
26 MHz
TXA TXP Reset
CCS Technical Documentation
Figure 20: Production Test Pattern
RH-12/RH-28 System Module
1 4 5
2 6
3
1: TXD / FBUS_Tx 2: RXD / FBUS_Rx 3: DAI_CLK 4: VPP 5: SCK / MBUS 6: GND
Issue 1 02/04
Nokia Corporation
Page 37
CCS Technical Documentation
See the following two figures for an indication as to where some of the test points can be found.
J417 SDRAd0
J416 SDRDa0
J420 MMICS0X
J402 SDRCKE
J418 MMIDa0
J470 VBAT J471 GENTEST0/STJTxD J473 STJRxD J472 GENTEST1/STJClk
J414 CBusEnX
J413 CBusDa
J412 CBusClk
J411 UEMInt J474 GND J488 EMU1 J487 EMU0
Main board A side of PWB
J404 PURX J481 JTRst J484 JTD0 J483 VCC J482 JTDI J489 GND J485 JClk_rst J486 JTClk J480 JTMS
J403 SleepX
J408 DBusDa
J407 DBusClk
RH-12/RH-28 System Module
Test Points
J410 DBusEn1X
Page 38
Nokia Corporation
J401 SleepClk
Issue 1 02/04
RH-12/RH-28 System Module
J356 FMCtrlDa J358 FMWrEn
J357 FMCtrlClk J359 FMClk
J315 FCI supply
J319 GND
J317 FCI scl
J316 FCI sda
J318 FCI Int
J105 D+/RXD
J106 D-/TXD
J112 USBTx
CCS Technical Documentation
J111 USBSE
Main board B side of PWB
J104 Vpu J306 IHF1 J307 IHF0 J100 VBAT J101 BSI J107 USB6Z J108 USBRx J110 USBRxP
J113 USBSuspend
J109 USBRxM
Issue 1 02/04
Nokia Corporation
Page 39
RH-12/RH-28 System Module
CCS Technical Documentation
RF Module Introduction
The RF module performs the necessary high frequency operations of the EGSM900/ GSM1800/GSM1900 triple band (EDGE) engine in the RH-12/RH-28 product. The EGSM900 is rematched to GSM850 in the RH-28 product. Both, the transmitter and receiver have been implemented by using direct conversion architecture, which means that the modulator and demodulator operate at the channel frequency. The core of the RF is an application-specific integrated circuit, Helgo. Another core component is a power amplifier module, which includes two amplifier chains, one for GSM850/EGSM900 and the other for GSM1800/GSM1900. Other key components include: · · · · 26 MHz VCTCXO for frequency reference 3296-3980 MHz SHF VCO (super high frequency voltage controlled oscillator) front end module comprising a RX/TX switch and two RF bandpass SAW filters three additional SAW filters
The control information for the RF is coming from the baseband section of the engine through a serial bus, referred later on as RFBus. This serial bus is used to pass the information about the frequency band, mode of operation, and synthesizer channel for the RF. In addition, exact timing information and receiver gain settings are transferred through the RFBus. Physically, the bus is located between the baseband ASIC called UPP and Helgo. Using the information obtained from UPP, Helgo controls itself to the required mode of operation and further sends control signals to the front end and power amplifier modules. In addition to the RFBus, there are still other interface signals for the power control loop and VCTCXO control and for the modulated waveforms. The RF circuitry is located on the top side of the 8 layer PWB. EMC leakage is prevented by using a metal cans. The RF circuits are separated to three blocks: · · · FM radio PA, front end module, LNA and 1900 band SAWs Helgo RF IC, VCO, VCTCXO, baluns and balanced filters
The RF transmission lines constitute of striplines and microstriplines after PA. The baseband circuitry is located on the one side of the board, which is shielded with a Nokia Corporation
Page 40
Issue 1 02/04
CCS Technical Documentation meallized frame and ground plane of the UI-board.
RH-12/RH-28 System Module
RF Frequency Plan
RF frequency plan is shown below. The VCO operates at the channel frequency multiplied by two or four, depending on the frequency band of operation. This means that the baseband-modulated signals are directly converted up to the transmission frequency and the received RF signals directly down to the baseband frequency.
Figure 21: RF Frequency Plan
DC Characteristics
Regulators The transceiver baseband section has a multi-function analog ASIC, UEM, which contains among other functions six pieces of 2.78 V linear regulators and a 4.8 V switching regulator. All regulators can be controlled individually by the 2.78 V logic directly or through a control register. The use of the regulators can be seen in the power distribution diagram, which is presented in the Figure Power Distribution Diagram below.
Issue 1 02/04
Nokia Corporation
Page 41
RH-12/RH-28 System Module
CCS Technical Documentation
The seven regulators are named VR1 to VR7. VrefRF01 and VrefRF02 are used as the reference voltages for the Helgo, VrefRF01 (1.35V) for the bias reference and VrefRF02 (1.35V) for the RX ADC (analog-to-digital converter) reference. The regulators (except for VR7) are connected to the Helgo. Different modes of operation can be selected inside the Helgo according to the control information coming through the RFBus.
Table 9: List of the needed supply voltages Volt. Source VR1 VR2 VR3 VR4 VR5 VR6 VR7 VrefRF01 VrefRF02 Vbatt Load PLL charge pump (4.8 V) TX modulators, VPECTRL3s (ALC), driver VCTCXO, synthesizer digital parts Helgo pre-amps, mixers, DtoS dividers, LO-buffers, prescaler LNAs, Helgo baseband (Vdd_bb) VCO ref. Voltage for Helgo ref. Voltage for Helgo PA
Typical Current Consumption The table below shows the typical current consumption in different operation modes.
Table 10: Typical current consumption in different operation modes Operation mode Power OFF RX, EGSM900 RX, GSM1800/GSM1900 TX, power level 5, EGSM900 TX, power level 0, GSM1800/ GSM1900 Current consumption < 10 uA 75 mA, peak 70 mA, peak 1700 mA, peak 1000 mA, peak Notes Leakage current (triple band PA)
Page 42
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation Power Distribution
Figure 22: Power Distribution Diagram
RH-12/RH-28 System Module
RF Characteristics
Table 11: Channel Numbers and Frequencies System GSM850 GSM900 Channel number 128 <= n <= 251 0 < =n <=124 975<= n <= 1023 GSM1800 GSM1900 512 <= n <= 885 512 <= n <=810 TX frequency F = 824.2 + 0.2(n 128) F = 890 + 0.2n F = 890 + 0.2 (n -1024) F = 1710.2 + 0.2 (n-512) F = 1850.2 + 0.2 (n-512) RX frequency F = 869.2 + 0.2(n-128) F = 935 + 0.2n F = 935 + 0.2(n -1024) F = 1805.2 + 0.2 (n-512) F = 1930.2 + 0.2 (n-512) Unit MHz MHz MHz MHz MHz
Issue 1 02/04
Nokia Corporation
Page 43
RH-12/RH-28 System Module
CCS Technical Documentation
Table 12: Main RF Characteristics
Parameter Cellular system[RH-12] [RH-28] RX Frequency range
Unit and value EGSM900/GSM1800/GSM1900 GSM850/GSM1800/GSM1900 GSM850: 869 ... 894 MHz EGSM900: 925 ... 960 MHz GSM1800: 1805...1880 MHz GSM1900: 1930...1990 MHz GSM850: 824 ... 849 MHz EGSM900: 880 ... 915 MHz GSM1800: 1710 ...1785 MHz GSM1900: 1850 ...1910 MHz GSM850: 45 MHz EGSM900: 45 MHz GSM1800: 95 MHz GSM1900: 80 MHz 200 kHz GSM850: 124 EGSM900: 174 GSM1800: 374 GSM1900: 300 GSM850: GSMK 5...33 dBm GSM850: 8-PSK 5...27 dBm EGSM900: GSMK 5...33 dBm EGSM900: 8-PSK 5...27 dBm GSM1800: GSMK 0...30 dBm GSM1800: 8-PSK 0...26 dBm GSM1900: GSMK 0...30 dBm GSM1900: 8-PSK 0...26 dBm GSM850: 15 EGSM900: 15 GSM1800: 16 GSM1900: 16 GSM850: 12 EGSM900: 12 GSM1800: 14 GSM1900: 14
TX Frequency range
Duplex spacing
Channel spacing Number of RF channels
Output Power
Number of power levels GMSK
Number of power levels 8-PSK
Page 44
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
Table 13: Transmitter Characteristics Item Type LO frequency range Values (EGSM900/1800/1900)
RH-12/RH-28 System Module
Direct conversion, nonlinear, FDMA/TDMA GSM850: 3296...3395 MHz (4 x TX freq) EGSM900: 3520...3660 MHz (4 x TX freq) GSM1800: 3420...3570 MHz (2 x TX freq) GSM1900: 3700...3820 MHz (2 x TX freq) GMSK 33/33/30/30 dBm 8-PSK 27/27/26/26 dBm
Output power (GSM850/EGSM900/GSM1800/GSM1900)
Table 14: Receiver Characteristics Item Type LO frequencies Values, EGSM900/1800/1900 Direct conversion, Linear, FDMA/TDMA GSM850: 3476...3575 MHz (4 x RX freq) EGSM900: 3700...3840 MHz (4 x RX freq) GSM1800: 3610...3760 MHz (2 x RX freq) GSM1900: 3860...3980 MHz (2 x RX freq) +/- 91 kHz min. - 102 dBm (normal condition) 86 dB 230 mVpp, single-ended I/Q signals to RX ADCs
Typical 3 dB bandwidth Sensitivity Total typical receiver voltage gain (from antenna to RX ADC) Receiver output level (RF level -95 dBm)
Issue 1 02/04
Nokia Corporation
Page 45
RH-12/RH-28 System Module
CCS Technical Documentation
RF Block Diagram
The block diagram of the RF module can be seen in the following figure. The detailed functional description is given in the following sections.
Figure 23: RF Block Diagram
HELGO
Page 46
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation
RH-12/RH-28 System Module
Frequency Synthesizers The VCO frequency is locked by a PLL (phase locked loop) into a stable frequency source given by a VCTCXO, which is running at 26 MHz. The frequency of the VCTCXO is in turn locked into the frequency of the base station with the help of an AFC voltage, which is generated in UEM by an 11 bit D/A converter. The PLL is located in Helgo and it is controlled through the RFBus. The required frequency dividers for modulator and demodulator mixers are integrated in Helgo. The loop filter filters out the comparison pulses of the phase detector and generates a DC control voltage to the VCO. The loop filter determines the step response of the PLL (settling time) and contributes to the stability of the loop. The frequency synthesizer is integrated in Helgo except for the VCTCXO, VCO, and the loop filter. Receiver Each receiver path is a direct conversion linear receiver. From the antenna the received RF signal is fed to a front-end module where a diplexer first divides the signal to two separate paths according to the band of operation: either lower, GSM850/EGSM900 or upper, GSM1800/GSM1900 path. Most of the receiver circuitry is included in Helgo. Transmitter The transmitter consists of two final frequency IQ-modulators and power amplifiers, for the lower and upper bands separately, and a power control loop. The IQ-modulators are integrated in Helgo, as well as the operational amplifiers of the power control loop. The two power amplifiers are located in a single module with power detector. In the GMSK mode the power is controlled by adjusting the DC bias levels of the power amplifiers. Front End The front end features include: · Antenna 50 ohm input · RX GSM850/EGSM900 balanced output
· RX GSM1800 balanced output · · · RX GSM1900 single ended output TX GSM850/GSM900 single ended 50 ohm input TX GSM1800/GSM1900 single ended 50 ohm input
· 3 control lines from the Helgo Issue 1 02/04 Nokia Corporation Page 47
RH-12/RH-28 System Module
Figure 24: Front End
CCS Technical Documentation
Power Amplifier The power amplifier features include: · · · 50 ohm input and output, GSM850/EGSM900 and GSM1800/GSM1900 Internal power detector GMSK and EDGE mode
Figure 25: Power Amplifier
Page 48
Nokia Corporation
Issue 1 02/04
CCS Technical Documentation RF ASIC Helgo The RF ASIC features include · · · · · Package uBGA108 Balanced I/Q demodulator and balanced I/Q modulator Power control operational amplifier, acts as an error amplifier
RH-12/RH-28 System Module
The signal from VCO is balanced, frequencies 3296 to 3980 MHz Low noise amplifiers (LNAs) for GSM850/EGSM900 and GSM1800 are integrated
The Helgo can be tested by test points only. AFC function AFC is used to lock the transceiver's clock to the frequency of the base station. Antenna The antenna for RH-12/RH-28 is a triple band antenna. Two versions: · · RH-12 GSM900/GSM1800/GSM1900 RH-28 GSM850/GSM1800/GSM1900
Antenna concept: Flex print on substrate covered with decorated label
The antenna also works as cover for the IHF-speaker (Internal Handsfree Speaker). The IHF sound chamber and the camera are sealed with a rubber gasket (part of the antenna).
Issue 1 02/04
Nokia Corporation
Page 49
RH-12/RH-28 System Module
CCS Technical Documentation
[This page left intentionally blank]
Page 50
Nokia Corporation
Issue 1 02/04