Customer Care Solutions RH-20 Series Transceivers System Module and User Interface Issue 1 10/2003 Company Confidential Nokia Corporation
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Table of Contents Page No Glossary of Terms ..........................................................................................................3 Introduction ....................................................................................................................6 Electrical Modules .......................................................................................................
CCS Technical Documentation Company confidential RH-20 System Module and User Interface IHF Speaker & Stereo Audio Amplifier .................................................................33 Internal Microphone ................................................................................................33 Internal Speaker .......................................................................................................33 IHF Speaker & Stereo Audio Amplifier ......................................
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Glossary of Terms Page 4 ACI Accessory Control Interface ADC Analog-Digital Converter AFC Automatic Frequency Control AGC Automatic Gain Control API Application Programming Interface ARM Processor architecture ASIC Application Specific Integrated Circuit BB Baseband CBus Control Bus connecting UPP_WD2 with AEM and UEM CCS Customer Care Solutions CMT Cellular Mobile Telephone (MCU and DSP) COG C
Company confidential RH-20 System Module and User Interface CCS Technical Documentation 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 IHF Integrated H
RH-20 Company confidential System Module and User Interface Page 6 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 PWM Pulse Width Modulation RF Radio Frequency RTC Real Time Clock SIM Subscriber Identity Module SW Software UEM Universal Energy Management UI User Interface UPP Universal Phone Processor VCXO Vo
CCS Technical Documentation Company confidential RH-20 System Module and User Interface Introduction Electrical Modules The system module 1AO consists of Radio Frequency (RF) and baseband (BB). User Interface (UI) contains display, keyboard, IR link, vibra, system connector and audio parts. FM radio is located on the main PWB 1AO. The electrical part of the keyboard is located in separate UI PWB named 1dm. 1dm is connected to radio module PWB through a spring connector.
RH-20 Company confidential 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). Figure 2: Baseband block diagram Baseband is running from power rails 2.8V analog voltage and 1.8V I/O voltage.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface The 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.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Baseband Technical Specifications Absolute Maximum Ratings Signal Note Battery Voltage (Idle) -0.3V - 5.5V Battery Voltage (Call) Max 4.7V 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 BB Regulators Signal Min. Nom Max Note VANA 2.70V 2.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface RF Regulators Signal Min Nom Max Note VR1A 4.6V 4.75V 4.9V Imax = 10mA VR2 2.70V 3.20V 2.78V 3.3V 2.86V 3.40V Imax = 100mA VR3 2.70V 2.78V 2.86V Imax = 20mA VR4 2.70V 2.78V 2.86V Imax = 50mA Isleep = 0.1mA VR5 2.70V 2.78V 2.86V Imax = 50mA Isleep = 0.1mA VR6 2.70V 2.78V 2.86V Imax = 50mA Isleep = 0.1mA VR7 2.70V 2.78V 2.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Power Distribution diagram Page 12 Nokia Corporation.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface 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 covers a connector or a defined interface.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation FM Radio Interface BB Signal FM Radio Signal Min Nom Max VFLASH2 Vcca 2.7V 2.78V 2.86V Imax =10.5 mA Vcc(vco) 2.7V 2.78V 2.86V Imax =940 µA Vccd 2.7V 2.78V 2.86V Imax = 3.9 mA FMClk 1.4V 0 1.8V 1.88V 0.4V GenIO(3) Condition 32kHz 30ppm Note High Low Reference clock for FM radio module Frequency Also 6.5 MHz can be used Stability GenIO(8) FMWrEn 1.4V 0V 1.8V 1.88V 0.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation Current Current drawn by PA when ”off” VR1A UEM Helgo Voltage 4.6 Current VR2 UEM Helgo Voltage 2.70 Current VR3 UEM VCTCXO, Helgo Voltage 2.70 Current VR4 UEM Helgo Voltage 2.70 2000 mA 0.8 2 µA 4.75 4.9 V 2 10 mA 2.78 2.86 V 65 100 mA 2.78 2.86 V 1 20 mA 2.78 2.86 V 50 mA 2.86 V 50 mA 2.86 V 50 mA 2.86 V 30 mA 1.
RH-20 Company confidential System Module and User Interface TXA RFBusEna1X UPP UPP Helgo Helgo CCS Technical Documentation Load Capacitance 20 pF Timing Accuracy 1/4 symbol ”1” 1.38 1.88 V ”0” 0 0.4 V Load Resistance 10 220 kΩ Load Capacitance 20 pF Timing Accuracy 1/4 symbol ”1” 1.38 1.88 V ”0” 0 0.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface AC and DC Characteristics of RF-Baseband Analogue Signals Signal name VCTCXO From VCTCXO To UPP Parameter Min Frequency 13 Signal amplitude 0.2 Input Impedance 10 Typ 0.8 40 VCTCXOGnd VCTCXO UPP DC Level RXI/RXQ Helgo UEM Voltage swing (static) 1.35 1.4 DC level 1.3 Differential voltage swing (static) DC level TXIP / TXIN UEM Helgo V 2.15 2.2 2.25 Vpp 1.17 1.20 1.23 V 200 W 0.
RH-20 Company confidential System Module and User Interface IPA1 / IPA2 UEM PA CCS Technical Documentation Voltage at +25oC 1,7 Voltage at +60oC 1,79 Output Voltage 0 2.7 V Current range 0 5 mA PA final stage quiescent current adjustment External Signals and Connections Keyboard (board-to-board) Connector Pin Signal Condition Note 1 GND 0V 2 VLED+ VBAT 7.5V LED off LED on Supply Voltage for Keyboard LEDs 3 ROW(4) 0.7xVIO 0 1.8V 0.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation 15 VLED3- 0V 1.9V 16 GND 0V LED off LED on LED Katode Voltage LCD Connector (Board to Board) Table 1: LCD Connector (Board to Board) Pin Signal Min 1 VDDI 1.72V 2 XRES 0.7*VDDI 0 Nom 1.8V Max 1.88V VDDI 0.
RH-20 Company confidential System Module and User Interface 2.70V 2.78V CCS Technical Documentation 6 VDD 2.86V Supply Voltage. Connected to VFLASH1 7 NC 8 GND 0V 9 VLED- 0V 0.525V LED off LED on Feedback Voltage to LED Driver 10 VLED+ 0V 7V LED off LED on Supply Voltage for LEDs Not Connected Ground DC Connector Pin Signal 1 VCHAR Min. 7.0 VRMS Nom Max Condition Note 11.1Vpeak 16.9 Vpeak 7.9 VRMS 1.0 Apeak Standard charger Charger positive input 8.4 VRMS 9.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation Bottom connector pins and signals: Spectral range Voltage / Current levels Max or nominal serial impedance CHARGE V Charge DC 0-9 V / 0.85 A 2 GND Charge GND 3 ACI ACI 4 VOUT DC out 5 NC 6 FBUS RX FBUS 115kbit 0 / 2.78V 7 FBUS TX FBUS 115kbit 0 / 2.78V 8 GND Data GND 9 XMIC N Audio in 300 - 8k 1Vpp & 2.78V Ext. Mic Input 10 XMIC P Audio in 300 - 8k 1Vpp & 2.78V Ext.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation SIM connector Pin Name Parameter Min. Typ Max Unit Notes 1 VSIM 1.8V SIM Card 1.6 1.8 1.9 V Supply voltage 3V SIM Card 2.8 3.0 3.2 V 1.8V SIM Card 0.9xVSIM 0 VSIM 0.15xVSIM V 3V SIM Card 0.9xVSIM 0 VSIM 0.15xVSIM V 2 3 SIMRST SIMCLK Frequency 3.25 Trise/Tfall 4 DATA 5 NC 6 GND MHz 50 ns SIM reset (output) SIM clock 1.8V Voh 1.8V Vol 0.9xVSIM 0 VSIM V 3V Voh 3V Vol 0.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface Internal microphone Signal Min. MICP MICN Nom Max Condition Note 200mVpp AC 2.2kΩ to MIC1B MICP 2.0 V 2.1 V 2.25 V DC 2.0V 2.1V 2.25V DC MICN Internal speaker Signal Min. Nom Max Condition Note 0.8V 2.0 Vpp 0.85V AC DC Differential output (Vdiff = 4.0 Vpp) EARP 0.75V 0.75V 0.8V 2.0 Vpp 0.85V AC DC Min. Nom Max Condition Note 0.8V 2.0 Vpp 0.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Baseband Functional Description Modes of Operation 1AO baseband 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 due to disconnection of main battery and backup battery or low battery voltage level in both of the batteries.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface In Active mode the RF regulators are controlled by SW writing into EM’s registers wanted settings: VR1A can be enabled or disabled. VR2 can be enabled or disabled 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 Active mode. Sleep Mode Sleep mode is entered when both MCU and DSP are in stand–by mode.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation 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) BTEMP 3 Battery temperature measurement (measured by ntc resistor inside pack) GND 4 Negative/common battery terminal Figure 5: BLD-3 battery pack pin order 4(GND) 3(BTEMP) 2(BSI) 1 (+) Power Up and Reset Power up and reset is controll
CCS Technical Documentation Company confidential RH-20 System Module and User Interface give the same watchdog response time to the MCU. Power Up with PWR key When the Power on key is pressed the UEM enters the power up sequence as described in the previous paragraph. Pressing the power key causes the PWRONX pin on the UEM to be grounded. The UEM PWRONX signal is not part of the keypad matrix. The power key is only connected to the UEM.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation described in section Power Up and Reset. After baseband is powered on, an interrupt is given to MCU. When RTC alarm occurs during power on state the interrupt for MCU is generated. A/D Channels The UEM contains the following A/D converter channels that are used for several measurement purpose. The general slow A/D converter is a 10 bit converter using the UEM interface clock for the conversion.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface FM Radio The FM radio in the transceiver RH-20 is a single chip electronically tuned FM stereo radio with fully integrated IF selectivity and demodulation. The FM radio is completely adjustment free. It can be tuned the European, US and Japanese FM bands. The channel tuning and bus data are controlled by UPP.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Camera CIF camera module will be used in RH-20. Camera is connected to baseband (UPP) through HW accelerator IC. External 1.8V regulator is used as a power supply (VDIG) for camera module and HW accelerator together with VFLASH2.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation The SIM interface is powered up when the SIMCardDet signal indicates "card in". This signal is derived from the BSI signal. Parameter Variable Min. Typ Max Unit SIMCARDet, BSI comparator Threshold Vkey 1.94 2.1 2.26 V SIMCARDet, BSI comparator Hysteresis (1) Vsimhyst 50 75 100 mV The entire SIM interface locates in two chips: UPP and UEM.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation External Accessory Regulator An external LDO Regulator exists for accessory power supply purposes. All ACI-accessories require this power supply. Regulator input is connected to battery voltage VBAT and output is connected to Vout pin in the system connector. Regulator is controlled via UPP (On/Off-function). Accessory Regulator Signals Signal Min. Nom Max Note Vout 2.70V 2.78 2.86V Imax = 150mA GenIO(0) 1.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface Int comparator output to change state, in this case from 0 to 1. The button can be used for answering incoming calls but not to initiate outgoing calls. Figure 10: External microphone connection HookInt MICB2 UEM MIC2P EMC/ESD Components MIC2N XMICP XMICN External Earphone Connections Headset implementation uses separate microphone and earpiece signals.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Internal Audio IHF Speaker & Stereo Audio Amplifier Integrated Hands Free Speaker, 16mm MALT, is used to generate speech audio, alerting and warning tones in RH-20. Audio amplifier is controlled by the UPP. Speaker capsule is mounted in the C-cover. Spring contacts are used to connect the IHF Speaker contacts to the main PWB.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation type earpiece is used. Figure 14: Internal speaker Common mode choke EARP UEM EARN IHF Speaker & Stereo Audio Amplifier Integrated Hands Free Speaker, 16mm MALT, is used to generate speech audio, alerting and warning tones in RH-20. Audio amplifier is controlled by the UPP. Speaker capsule is mounted in the C-cover. Spring contacts are used to connect the IHF Speaker contacts to the main PWB.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Memory Block For the MCU UPP includes ROM, 8 kbytes, that is used mainly for boot code of MCU. To speed up the MCU operation small 4 kbyte cache is also integrated as a part of the MCU memory interface. For program memory 8Mbit (512 x 16bit) PDRAM is integrated. RAM block can also be used as data memory and it is byte addressable. RAM is mainly for MCU purposes but also DSP has also access to it if needed.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation Audio Control Figure 17: Audio block diagram RH-20 earp iece UPP T om ahaw k bottom connector UEM earp m ic1 m ic2 headint xear m ic3 m icrofo ne M ic ACI SP K R L out R out Lo ut R out ear d ata m ic d ata Ph s Pihf Lin R in PA R adio L R anten na Control Bus IH FSp eak er Accessory identification and Power Supply Figure 18: Accessory identification and Power supply Tomahawk UEM Vflash1 Vflash1 Vh
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Backup Battery Backup battery is used in case when main battery is either removed or discharged. Backup battery is used for keeping real-time clock running for minimum of 30 minutes. Rechargeable backup battery is connected between UEM VBACK and GND. In UEM backup battery charging high limit is set to 3.2V. The cut–off limit voltage (V BUCoff–) for backup battery is 2.0V.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation RF Module Introduction The RF module performs the necessary high frequency operations of the EGSM900/ GSM1800/GSM1900 tripleband (EDGE) engine. 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.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation 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.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation 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 the regulators can be controlled individually by the 2.78 V logic directly or through a control register.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Typical current consumption The table shows the typical current consumption in different operation modes. Operation mode Current consumption Notes Power OFF < 10 uA Leakage current (triple band PA) RX, EGSM900 75 mA, peak RX, GSM1800/GSM1900 70 mA, peak TX, power level 5, EGSM900 1600 mA, peak TX, power level 0, GSM1800/ GSM1900 900 mA, peak Page 42 Nokia Corporation.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface Power Distribution Figure 20: Power distribution diagram HELGO LNA GSM1800/ GSM1900 1900 Issue 1 10/2003 Nokia Corporation.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation RF characteristics Channel Numbers and Frequencies System Channel number TX frequency RX frequency Unit EGSM900 0 < =n <=124 F = 890 + 0.2 * n F = 935 + 0.2 * n MHz 975<= n <= 1023 F= 890+0.2* (n -1024) F= 935+0.2* (n -1024) MHz GSM1800 512 <= n <= 885 F=1710.2+0.2*(n-512) F=1805.2+0.2*(n-512) MHz GSM1900 512 <= n <=810 F=1850.2+0.2*(n-512) F=1930.2+0.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface Transmitter characteristics Item Values (EGSM900/GSM1800/GSM1900) Type Direct conversion, nonlinear, FDMA/TDMA LO frequency range 3520...3660 MHz/3420...3570 MHz/3700...3820 MHz Output power GMSK 33/30/30 dBm 8-PSK 27/26/26 dBm Gain control range min. 30 dB Phase error (RMS/peak), GMSK EVM (RMS/peak), 8-PSK 5 deg./20 deg.
Copyright (C) Nokia Corporation. All rights reserved. UNAUTHORIZED REPRODUCTION OF THIS DRAWING IS NOT PERMITTED. THIS DRAWING IS PROTECTED BY COPYRIGHT AS AN UNPUBLISHED WORK. This document is property of Nokia Corporation THIS DRAWING CONTAINS PROPRIETARY AND CONFIDENTIAL INFORMATION. RF block diagram Appr LEIPALA 27-May-03 17-Aug-99 dd-mmm-yy Name LEIPALA 70 Des. Edit 1 (01) Dr. yy 1.0 RF/BB module RH-20 V.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation 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.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Figure 22: Front End RX RX GSM1900 PCS RX RX GSM1800 DCS Ant TX TX EGSM900 EGSM TX GSM TX 1800/1900 RX RX EGSM900 EGSM DCS/PCS Power Amplifier The power amplifier features include: - 50 ohm input and output, EGSM900/GSM1800/GSM1900 - internal power detector - EDGE mode Page 48 Nokia Corporation.
CCS Technical Documentation Company confidential RH-20 System Module and User Interface Figure 23: Power amplifier EGSM900 EGSM out EGSM900 EGSM in GSM1800/ DCS/ 1900 PCS out GSM1800/ DCS/ 1900 PCS in EGSM900 EGSM Power control GSM1800/ 1900 DCS/PCS Power control Power detector Mode 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 - The signal from VCO is balanced, fr
RH-20 Company confidential System Module and User Interface CCS Technical Documentation User interface modules The RH-20 UI module has a separate 4-layer UI PWB 1dm. The user interface features a 130 x130 pixel passive matrix color STN display, 4096 colours. The LCD display is connected to transceiver PWB by 10-pin board-to-board connector. Earpiece, microphone, IHF speaker and Vibra are connected using spring type connections. IR module and system connector are SMD devices.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation Rows are read while columns one at the time are written low. If some row is down it indicates that the key which is at the cross point of selected column and row was pressed. After key press detection registers in UPP are reset and columns are written back to low state. Figure 25: Keyboard matrix connections.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation LCD RH-20 has 130 x130 pixel 12bpp (bits per pixel) passive matrix color STN display. LCD is connected to transceiver PWB by 10-pin board to board connector. Interface is using 9bit data transfer. Partial display function is implemented in the module. Table 1 shows main characteristics of RH-20 LCD. Figure 3 shows LCD interface connections.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation LCD & keypad illumination In RH-20, white LEDs are used for LCD and keypad lighting. Two LEDs are used for LCD lighting and eight LEDs for keyboard. A step up DC-DC converter is used as a LED driver. LCD LEDs are driven in serial mode to achieve stable backlight quality. This means that a constant current flow is lead through LCD LEDs. Serial resistance Rlcd is used to define the proper current.
RH-20 Company confidential System Module and User Interface CCS Technical Documentation Internal microphone The internal microphone capsule is mounted in the UI-frame. Microphone is omnidirectional and it is connected to UEM microphone input MIC1P/N. The microphone input is asymmetric and the UEM (MICB1) provides the bias voltage. Nominal impedance of the microphone is 1.8kOhms. The microphone input to UEM is ESD protected. Spring contacts are used to connect the microphone to the main PWB.
Company confidential RH-20 System Module and User Interface CCS Technical Documentation Pop-Port system connector Pop-Port system connector consists of a charging plug socket and a Pop-Port System Connector. The Pop-Port is a feature based interface. The accessory contains information about its features (ACI ASIC) and it is detected with a fully digital detection procedure. Table 3: Pop-Port functions.
RH-20 Company confidential System Module and User Interface Page 56 Nokia Corporation.
