CCS Technical Documentation RH-26 Series Transceivers 2 - System Module Issue 1 02/04 ©Nokia Corporation
RH-26 2 - System Module CCS Technical Documentation [This page intentionally blank] Page 2 ©Nokia Corporation Issue 1 02/04
RH-26 2 - System Module CCS Technical Documentation Table of Contents Page No Glossary of Terms .......................................................................................................... 4 System Module .............................................................................................................. 7 Baseband ........................................................................................................................ 8 Technical summary ............................
RH-26 2 - System Module CCS Technical Documentation Antenna ................................................................................................................... 46 RF-BB interface ......................................................................................................
RH-26 2 - System Module CCS Technical Documentation Glossary of Terms ACI Accessory Control Interface ADC Analogue-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 CMT Cellular Mobile Telephone (MCU and DSP) CPU Central P
RH-26 2 - System Module Page 6 CCS Technical Documentation DRC Dynamic Range Controller DSP Digital Signal Processor EGSM Extended – GSM EFR Enhanced Full Rate 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 IHF I
RH-26 2 - System Module CCS Technical Documentation 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.
RH-26 2 - System Module CCS Technical Documentation System Module The system module TB6 consists of Radio Frequency (RF) and Baseband (BB) blocks. User Interface (UI) contains display, keyboard, bluetooth, IR link, HF/HS connector and audio parts. Part of the keyboard is implemented in a separate flip module, TF6. The electrical part of the TB6 and half of the qwerty keyboard is located inside the flip module. RH-26 includes a Pop-Port™ accessory interface.
RH-26 2 - System Module CCS Technical Documentation Baseband Technical summary The main functionality of the baseband is implemented into two ASICs: - UPP (Universal Phone Processor) and - UEMK Edge (Universal Energy Management) Figure 1: Baseband block description RF-BB Interface LCD Combo Memory Passive colour STN FLASH 128Mbit & utRAM 16MBit Led driver Keyboard & display illumination SIM Keyboards UEMK Edge UPP8Mv3 DEMI Battery Engine QWERTY Engine control k Flip T9 µC Flip QWERTY 1.
RH-26 2 - System Module CCS Technical Documentation A real time clock function is integrated into the UEMK, which utilises 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 cell capacitor. The backup time with the cell capacitor is 15 minutes minimum.
RH-26 2 - System Module CCS Technical Documentation VSIM 1.745V 2.91V 1.8V 3.0V 1.855V 3.09V Imax = 25mA Isleep = 0.5mA VIO 1.72V 1.8V 1.88V Imax = 150mA Isleep = 0.5mA VCORE 1.0V 1.283V 1.492V 1.710V 1.053V 1.35V 1.57V 1.8V 1.106V 1.418V 1.649V 1.890V Imax = 200mA Isleep = 0.2mA Default value 1.57V Table 2: Accessory regulator Signal Min Nom Max Note Vout 2.70V 2.78 2.86V Imax = 150mA Iquiescent < 1.
RH-26 2 - System Module CCS Technical Documentation Table 5: External BT regulator characteristics Power source Max. load (mA) Voltage (V) Function Min Typ Max VBth 2.72 2.80 2.86 70mA From external 2.8V regulator VIO 1.72 1.80 1.88 10 mA I/O-voltage to ensure compatible IO levels. Table 6: External camera regulator characteristics Power source VCAMDIG Max. load (mA) Voltage (V) Min Typ Max 1.72 1.80 1.88 150 mA Function I/O-voltage to ensure compatible IO levels.
RH-26 2 - System Module CCS Technical Documentation Internal signals and connections Table 7: Internal microphone Signal Min Nom MICP MICN Max Condition Note 200mVpp AC 2.2kΩ to MIC1B 2.0 V 2.1 V 2.25 V DC 2.0V 2.1V 2.25V DC Table 8: Internal speaker Signal Min Nom EARP 0.75V 0.8V EARN 0.75V 0.8V Max Condition Note 2.0 Vpp AC Differential output 0.85V DC (Vdiff = 4.0 Vpp) 2.0 Vpp AC 0.
RH-26 2 - System Module CCS Technical Documentation External signals and connections Table 10: UI connector Pin Signal Min Nom Max 16 VDDI 1.72V 1.8V 1.88V 15 XRES 0.7*VDDI 0 VDDI 0.3*VDDI 13 12 SDA SCLK CXS Logic voltage supply Connected to VIO Reset Active low trw Reset active Logic ’1’ Logic ’0’ Serial data 100ns tsds Data setup time 100ns tsdh Data hold time VDDI 0.3*VDDI Logic ’1’ Logic ’0’ Serial clock input 6.5MHz Max frequency 0.7*VDDI 0 VDDI 0.3*VDDI 0.
RH-26 2 - System Module CCS Technical Documentation 1 VLED+ 0V LED off LED on 9V Supply Voltage for LEDs Table 11: FLIP connector Pin Signal Min Nom 1 FLIPCLK 0.7*VIO 0 2 VBAT 3 FLIPDATA 3.7V 0.7*VIO 0 Max Condition Note VIO 0.3*VIO Logic ’1’ Logic ’0’ Bus clock for flip module Supply for flip µC 4.2V VIO 0.3*VIO Logic ’1’ Logic ’0’ I/O data for flip module Table 12: DC connector Pin Signal 1 VCHAR Min 7.0 VRMS Nom Max Condition Note 11.1Vpeak 16.9 Vpeak 7.9 VRMS 1.
RH-26 2 - System Module 14 CCS Technical Documentation NC Not Connected Table 14: SIM connector Pin Name Parameter Min Typ Max Unit Notes 1 VSIM 1.8V SIM Card 1.62 1.8 1.98 V Supply voltage 3V SIM Card 2.7 3.0 3.3 V 1.8V SIM Card 0.8xVSIM 0 VSIM 0.2xVSIM V 3V SIM Card 0.8xVSIM 0 VSIM 0.2xVSIM V 2 3 SIMRST SIMCLK Frequency 3.25 Trise/Tfall 4 DATA 5 NC 6 GND Page 16 MHz 50 ns 1.8V Voh 1.8V Vol 0.7xVSIM 0 VSIM 0.2xVSIM V 3V Voh 3V Vol 0.7xVSIM 0 VSIM 0.
RH-26 2 - System Module CCS Technical Documentation Baseband functional description Modes of operation RH-26 baseband engine has six different functional modes: • No supply • Back-up • Acting Dead • Active • Sleep • Charging No supply In NO_SUPPLY mode, the phone has no supply voltage. This mode is a result of disconnection of the main and backup batteries or low battery voltage level in both of the batteries.
RH-26 2 - System Module CCS Technical Documentation abled and its output voltage can be programmed to be 2.78V or 3.3V. VR4 -VR7 can be enabled, disabled, or forced into low quiescent current mode. VR3 is always enabled in the Active mode. Sleep mode SLEEP mode is entered when both MCU and DSP are in stand–by mode. Sleep is controlled by both processors. When SLEEPX low signal is detected, UEMK enters the SLEEP mode. VCORE, VIO and VFLASH1 regulators are put into low quiescent current mode.
RH-26 2 - System Module CCS Technical Documentation Charging Temperature -30 °C… +60 °C Table 16: Pin numbering of battery pack Signal name Pin number Function VBAT 1 Positive battery terminal BSI 2 Battery capacity measurement (fixed resistor inside the battery pack) GND 3 Negative/common battery terminal Figure 3: BL-5C battery pack contacts 3(GND) 2(BSI) 1 (+) The BSI fixed resistor value indicates type and default capacity of a battery. NTC-resistor measures the battery temperature.
RH-26 2 - System Module CCS Technical Documentation Figure 4: Interconnection diagram Li-Ion VBATT BSI Overcharge / Overdischarge protection GND Charging Supported chargers are ACP-7, ACP-8, ACP-9, ACP-12, LCH-8, LCH-9 and LCH-12. Charging is controlled by the UEMK ASIC. External components are needed for current sensing, EMC, reverse polarity and transient protection of the input to the baseband module. The charger is connected to the system connector interface.
RH-26 2 - System Module CCS Technical Documentation Figure 5: UEMK charging circuitry Charger detection When connected, a charger creates voltage on VCHAR input of the UEMK. When VCHAR input voltage level is detected to have risen above VCHDET+ threshold by CHACON, the charging process starts. VCHARDET signal is generated to indicate the presence of the charger. The charger identification is controlled by EM SW. The charger recognition is initiated when the EM SW receives a ”charger connected” interrupt.
RH-26 2 - System Module CCS Technical Documentation 2 Identify the charger as a two-wire or three-wire charger. 3 Check that the charger is within the charger window. If the charger is accepted and identified, the appropriate charging algorithm is initiated. Charge control In the active mode, charging is controlled by UEMK’s digital part. Charging voltage and current monitoring is used to limit charge into safe area. For that reason, UEMK has programmable charging cut–off limits VBATLim 1,2L,2H (3.
RH-26 2 - System Module CCS Technical Documentation Figure 6: Transformed type charger window (U/I curve) Figure 7: Full-wave rectified output of standard charger Current limited constant voltage chargers 2- and 3-wire current limited constant voltage chargers are supported.
RH-26 2 - System Module • ACP-8 • ACP-12 • LCH-8 • LCH-12 CCS Technical Documentation The 3-wire chargers have a 3-wire interface to the phone, 2 power and 1 control. To control the charger output voltage, the wire carries a 32Hz digital pulse width modulated signal generated by the phone. In RH-26, 32 Hz PWM for the charger is connected to GND inside the bottom connector. This sets full charger output voltage and equals to 0% PWM from the charger point of view.
RH-26 2 - System Module CCS Technical Documentation Charger interface protection In order to ensure safe operation with all chargers and in misuse/fail situations, the charger interface is protected by using a transient voltage suppressor (TVS) and 1.5A fuse. TVS used in RH-26 is a 16V@175W device. Table 20: TVS characteristics Parameter Value Breakdown voltage (VBR) 17.8 Vmin (at IT 1.
RH-26 2 - System Module CCS Technical Documentation to be grounded. The UEMK PWRONX signal is not part of the keypad matrix. The power key is only connected to the UEMK. This means that when pressing the power key, an interrupt is generated to the UPP that starts the MCU. The MCU then reads the UEMK interrupt register and notices that it is a PWRONX interrupt. The MCU now reads the status of the PWRONX signal using the UEMK control bus, CBUS.
RH-26 2 - System Module CCS Technical Documentation The UEMK’s 11-channel analogue to digital converter is used to monitor charging functions, battery functions, user interface and RF functions. Bluetooth A single chip bluetooth BC02-ROM is used in RH-26. Figure 9: Baseband-BT connections Vbat CBUSClk VR3 HELGO PURX 2.8V LDO VIO UPP8Mv3 BC02-ROM Vreg_in VDD_VIO Xtal_in GenIO 14 (PCMClk) PCM_clk GenIO 16 (PCMRx) PCM_out GenIO 15 (PCMTx) PC_Min GenIO 17 (PCMSync) GenIO 8 (BTRstX) 1.
RH-26 2 - System Module CCS Technical Documentation quality still image mode. The camera module supports the CCP/CCI interface. The camera module supports a sleep and shutdown functions in order to minimize the current consumption when not used. In viewfinder mode the device outputs RGB 4:4:4 pixel data for the color LCD display. Keypads RH-26 consists of a separate flip board, TF6, which includes contacts for the qwerty and T9 keypad domes, MCU, led driver and LEDs for keypad lighting.
RH-26 2 - System Module CCS Technical Documentation Engine qwerty keypad LEDs are driven in 2 serial mode with each branch having its own current limiting resistor. Serial resistance R is used to limit the current through the LEDs. The feedback signal, FB, from LCD LEDs controls also the current of keypad LEDs. Qwerty LEDs are controlled through UEMK CALLED1 pin. Driver is controlled by the UEMK via DLight output. This signal is connected to driver ENpin (on/off).
RH-26 2 - System Module CCS Technical Documentation LCD A passive matrix colour STN display having 128 x 128 8 bpp (bits per pixel) is used in RH26. The LCD display is connected to the transceiver PWB by a board-to-board connector.
RH-26 2 - System Module CCS Technical Documentation Back-up battery cut-off limit V_BUCOFF+ V_BUCOFF- 2.04 1.94 2.10 2.0 2.16 2.06 V V Charging voltage (VBAT ? 3.4V) VBU 3.1 3.2 3.3 V Charging current ILIMVBU 150 500 µA SIM interface The UEMK contains the SIM interface logic level shifting. The SIM interface can be programmed to support 3V and 1.8V SIMs. SIM supply voltage is selected by a register in the UEMK.
RH-26 2 - System Module CCS Technical Documentation Figure 12: UPP/UEMK SIM interface connections GND GND SIM SIMDATA C5 C6 C7 C8 SIMIO SIMIO C1 C2 C3 C4 SIMClk SIMClk Data Data SIMCLK SIMRST VSIM UEM UPP SIMIF register UIF Block UEM digital logic UEMInt CBusDa CBusEnX From Battery Type contact CBusClk BSI The internal clock frequency from CTSI block is 13 MHz in GSM. To achieve the minimum starting SIMCardClk rate of 3.
RH-26 2 - System Module CCS Technical Documentation Figure 13: Pop-PortTM system connector (charger plug socket & system connector) ACI ACI (Accessory Control Interface) is a point-to-point, bi-directional serial bus. ACI has two main features: 1) The insertion and removal detection of an accessory device 2) acting as a data bus, intended mainly for control purposes.
RH-26 2 - System Module CCS Technical Documentation that the comparator level is 1.9V. The HeadInt signal does not change the state, even if the HF output is biased to 0.8V. When the plug is inserted, the switch is opened and the HeadInt signal is pulled up by the internal pull-up. The 1.9V threshold level is reached and the comparator output changes to low state causing an interrupt. The hook signal is generated by creating a short circuit between the headset microphone signals.
RH-26 2 - System Module CCS Technical Documentation Internal audio IHF speaker & audio amplifier Integrated handsfree speaker, 16mm MALT, is used to generate alerting and warning tones in RH-26. IHF speaker is driven by the audio amplifier (LM4890 & NCP2890) external to the UEMK. The speaker capsule is mounted in the antenna assembly. Spring contacts are used to connect the IHF Speaker contacts to the main PWB.
RH-26 2 - System Module CCS Technical Documentation Figure 18: Speaker connection UEM 10Ω EARP 1000Ω@100MHz 10Ω EARN 14V 27pF 14V 27pF Memory block For the MCU, UPP includes ROM, 2x4kbytes, that is used mainly for boot code of MCU. To speed up the MCU operation, small 4 kbytes cache is also integrated as a part of the MCU memory interface. For program memory, 8Mbit (512k x 16bit) PDRAM is integrated into the UPP. RAM block can also be used as data memory and it is byte addressable.
RH-26 2 - System Module CCS Technical Documentation Figure 19: Flip PWB construction Security The phone flash program and IMEI codes are software protected using an external security device that is connected between the phone and a PC. After sales interface Test pads are placed on the engine PWB for service troubleshooting purposes. The same test pattern is used for after sales purposes as well. In the pin assignment below, pins numbered 1, 4, and 5 are not in use.
RH-26 2 - System Module CCS Technical Documentation RF This section presents the electrical specifications of the GSM850/GSM1800/GSM1900 triple band transceiver, RH-26. The section contains electrical specifications, functional descriptions and block diagrams. The RF requirements follow ETSI GSM850/GSM1800/ GSM1900 phase2+ specifications. The module is supporting GPRS, EGPRS, and HSCSD protocols. GPRS multislot class in 10 and HSCSD multislot class is 6. EGPRS multislot classes are 1 - 2.
RH-26 2 - System Module CCS Technical Documentation The baseband circuitry is located on the other side of the board, which is shielded with a metallized frame and ground plane of the UI-board. Maximum height of the RF components on the PWB is 1.8 mm. Heat generated by the circuitry is carried off via the PWB ground planes and metallic shields. Main technical specifications Nominal and maximum ratings Parameter Rating Battery voltage nominal 3.7 V Battery voltage maximum 4.
RH-26 2 - System Module CCS Technical Documentation Figure 21: RF frequency plan DC characteristics Regulators The transceiver baseband section has a multi-function analogue ASIC, UEM, which contains six pieces of 2.78 V linear regulators and a 4.8 V switching regulator. All the regulators can be controlled individually by the 2.78 V logic directly or through a control register.
RH-26 2 - System Module CCS Technical Documentation Typical current consumption.
RH-26 2 - System Module CCS Technical Documentation Helgo Figure 22: Power distribution diagram Page 42 ©Nokia Corporation Issue 1 02/04
RH-26 2 - System Module CCS Technical Documentation RF characteristics Channel numbers and frequencies Main RF characteristics TX characteristics Issue 1 02/04 ©Nokia Corporation Page 43
RH-26 2 - System Module CCS Technical Documentation RX characteristics Table 24: Receiver characteristics RF block diagram The block diagram of the RF module can be seen in the figure below. The detailed functional description is given in the following sections.
RH-26 2 - System Module CCS Technical Documentation Helgo Figure 23: RF block diagram.
RH-26 2 - System Module CCS Technical Documentation 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 into two separate paths according to the band of operation: either lower, GSM850 or upper, GSM1800/GSM1900 path. Each of the paths follows a pin-diode switch which is used to select either a receive or transmit mode.
RH-26 2 - System Module CCS Technical Documentation for the ADCs is 1.45 V. Transmitter In contrast to the receiver where the adaptation to the modulation (GMSK) is performed by the DSP algorithm, the transmitter must be configured differently also as regards the hardware. The selected modulation scheme affects the operation of the IQ-modulator, power control loop, and the power amplifier biasing.
RH-26 2 - System Module CCS Technical Documentation RF-BB interface Figure 24: Engine block diagram Page 48 ©Nokia Corporation Issue 1 02/04
