Customer Care Solutions RM-37 Series Transceivers 7-System Module and User Interface Issue 1 04/2004 Company Confidential ©Nokia Corporation
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Table of Contents Page No Glossary of Terms ..........................................................................................................5 Introduction ....................................................................................................................8 Electrical Modules .......................................................................................................
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface ACI ..........................................................................................................................34 External Accessory Regulator .................................................................................35 External Audio ...........................................................................................................35 External Microphone Connection ......................
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Schematics/Layouts, TK8_12 module (A3 size)................................................................................................ User Interface diagram 1 (ver.0.0 ed.16) ................................................................................................ 1 Parts Placement diagram ....................................................................................................................
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation Glossary of Terms ACI Accessory Control Interface ADC Analog-Digital Converter AEC Acoustic Echo Canceller AFC Automatic Frequency Control AGC Automatic Gain Control AIF Application Interface ALWE Background noise suppressor AMS After Market Service API Application Programming Interface ARM Processor architecture ASIC Application Specific Integrated Circuit BB Baseband BT Bluetooth CBus Con
RM-37 Company confidential 7-System Module and User Interface Page 6 CCS Technical Documentation DAI Digital Audio Interface DB Dual band DCS1800 Digital Cellular system at 1800 MHz DCT3 Digital Core Technology, 3rd generation DCN Offset Cancellation control signal DLL Dynamic Link Library DRC Dynamic Range Controller DSP Digital Signal Processor EGSM Extended – GSM EFR Enhanced Full Rate EGPRS Enhanced General Packet Radio Service EMC Electromagnetic compatibility EMI Electromag
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation LCD Liquid Crystal Display LDO Low Drop-Out LNA Low Noise Amplifier MBUS 1-wire half duplex serial bus MCU Micro Controller Unit MDI MCU-DSP Interface MFI Modulator and Filter Interface PA Transmit Power Amplifier PC Personal Computer PCM Pulse Code Modulation PCM SIO Synchronous serial bus for PCM audio transferring PIFA Planar Inverted F-antenna PWB Printed Wiring Board RF Radio Frequency
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Introduction Electrical Modules The system module TB3 consists of Radio Frequency (RF) and baseband (BB). User Interface (UI) contains display, keyboard, IR link, vibra, HF/HS connector and audio parts. FM radio is located on the main PWB TB3. The electrical part of the keyboard is located in separate UI PWB named TK8. TK8 is connected to radio PWB through spring connectors.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Temperature Conditions Specifications are met within range of -10...+55 deg. C ambient temperature Storage temperature range -40...+70 deg. C Humidity Relative humidity range is 5... 95%. This module is not protected against water. Condensated or splashed water might cause malfunction momentary. Long term wetness will cause permanent damage. Issue 1 04/2004 ©Nokia Corporation.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation System Module : Baseband The System module (or Engine) consists of Baseband and RF sub-modules, each described below. Baseband Module, technical summary Main functionality of the baseband is implemented into two ASICs: UPP (Universal Phone Processor) and UEM (Universal Energy Management).
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface UEM provides A/D and D/A conversion of the in-phase and quadrature receive and transmit signal paths and also A/D and D/A conversions of received and transmitted audio signals to and from the user interface. The UEM supplies the analog TXC and AFC signals to RF section according to the UPP DSP digital control. Data transmission between the UEM Technical Summary Baseband of the RM-37 is running from power rails 2.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Reduced functionality between -25 oC to -10 oC and +55 oC to +75 oC. Humidity and Water Resistance Full functionality in humidity range is 5% - 95%. Condensed or dripping water may cause intermittent malfunctions. Protection against dripping water is implemented. Page 12 ©Nokia Corporation.
Company confidential RM-37 7-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 4.8V Charger Input Voltage -0.3V - 16V DC Characteristics Regulators and Supply Voltage Ranges Battery Voltage Range Signal Min. Nom Max Note VBAT 3.1V 3.6V 4.2V (charging high limit voltage) 3.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Accessory Regulator Signal Min Nom Max Note Vout 2.72V 2.80 2.88V Imax = 70mA 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.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Power Distribution diagram Issue 1 04/2004 ©Nokia Corporation.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Baseband External and Internal Signals and Connections This section describes the external and internal electrical connection and interface levels on the baseband. The electrical interface specifications are collected into tables that cover a connector or a defined interface.
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation Camera interface Table 1: Power supply characteristics Signal name Type Min Typical Max Unit Description VIO IN 1.7 1.8 1.9 V Digital supply VANA IN 2.7 2.78 2.9 V Analogue supply V System GND GND 0 Table 2: DC characteristics Signal name Type Min CSX IN DaClk Typical Max Unit Description H: 0.7xVIO L: 0 H: VIO L: 0.3xVIO V Camera chip-select (active low) IN H: 0.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Integrated HF Speaker Signal Min Nom Max Condition Note 0.75V 0.8V 2.0 Vpp 0.85V AC DC Differential output (Vdiff = 4.0 Vpp) 0.75V 0.8V 2.0 Vpp 0.85V AC DC IHFP IHFN 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.
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation Internal Speaker Signal Min Nom Max Condition Note 0.75V 0.8V 2.0 Vpp 0.85V AC DC Differential output (Vdiff = 4.0 Vpp) 0.75V 0.8V 2.0 Vpp 0.85V AC DC Min Nom Max Condition Note 0.75V 0.8V 2.0 Vpp 0.85V AC DC Differential output EARP EARN Integrated HF Speaker Signal IHFP (Vdiff = 4.0 Vpp) IHFN 0.75V 2.0 Vpp 0.85V 0.
RM-37 Company confidential 7-System Module and User Interface VR5 UEM HELGA Voltage 2.70 CCS Technical Documentation 2.78 Current VR6 UEM HELGA Voltage 2.70 2.78 Current VR7 UEM SHF VCO Voltage 2.70 2.78 Current VrefRF01 UEM HELGA Voltage 1.334 1.35 Current VrefRF02 UEM VB_EXT Voltage 1.334 1.35 Current Temp Coefficient -65 2.86 V 50 mA 2.86 V 50 mA 2.86 V 30 mA 1.366 V 100 µA 1.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface ”0” 0 Current Load resistance 10 Load capacitance RFBusData RFBusClk Mode Select (GENIO9) RESET (GENIO6) UPP UPP UPP UPP HELGA HELGA HELGA HELGA 0.4 V 50 µA 220 kΩ 20 pF ”1” 1.38 1.88 V ”0” 0 0.4 V Load resistance 10 220 kΩ Load capacitance 20 pF Data frequency 10 MHz ”1” 1.38 1.88 V ”0” 0 0.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Input Capacitance Duty Cycle 40 VCTCXOGnd VCTCXO UPP DC Level RXI/RXQ HELGA UEM Voltage swing (static) 1.35 1.4 DC level 1.3 Differential voltage swing (static) DC level TXIP / TXIN UEM HELGA 1.45 Vpp Received demodulated IQ signals 1.35 1.4 V 2.15 2.2 2.25 Vpp 1.17 1.20 1.23 V 200 W 0.1 2.6 V HELGA Same spec as for TXIP / TXIN AFC UEM VCTCXO Voltage Min Max 0.0 2.
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation 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 0.3xVIO High Low Keyboard matrix row 4 4 ROW(3) 0.7xVIO 0 VIO 0.3xVIO High Low Keyboard matrix row 3 5 COL(2) 0.7xVIO 0 VIO 0.3xVIO High Low Keyboard matrix column 2 6 ROW(2) 0.7xVIO 0 VIO 0.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation LCD Connector (Board to Board) Pin Signal Min. Nom Max 1 VDDI 1.72V 1.8V 1.88V 2 XRES 0.7*VDDI 0 VDDI 0.3*VDDI 4 SI SCLK 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 Logic ’1’ Logic ’0’ Serial clock input 0.7*VDDI 0 VDDI 0.3*VDDI 0.7*VDDI 0 VDDI 0.3*VDDI 6.
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation 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.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation 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. Mic Input 11 HSEAR N Audio out 20 - 20k 1Vpp Ext. audio out (left) 12 HSEAR P Audio out 20 - 20k 1Vpp Ext. audio out (left) 13 HSEAR R N Audio out 20 - 20k 1Vpp Ext. audio out (right) 14 HSEAR R P Audio out 20 - 20k 1Vpp Ext.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Internal Signals and Connections 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.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Baseband Functional Description Modes of Operation TB3 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 RM-37 7-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.
RM-37 Company confidential 7-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 BLD-3 battery pack pin order Figure 5: 4(GND) 3(BTEMP) 2(BSI) 1 (+) Power Up and Reset Power up and reset is contr
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface watchdog is running during the UEM reset state, with the longest watchdog time selected. If the watchdog expires, the UEM returns to power off state. The UEM watchdog is internally acknowledged at the rising edge of the PURX signal in order to always give the same watchdog response time to the MCU.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation RTC Alarm Power Up If phone is in power off mode when RTC alarm occurs the wake up procedure is as 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.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface FM Radio The FM radio in the transceiver RM-37 is a single chip electronically tuned FM srereo radio with fully integrated IF selectivity and demodulation. The FM radio is completely adjustment free. It can be tuned into the European FM bands. The channel tuning and bus data are controlled by UPP. A variable capacitance diode, two coils and some resistors and capacitors are the external components for the FM radio.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation 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.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface 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.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation 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 9: External microphone connection HookInt MICB2 UEM MIC2P XMICP EMC/ESD Components MIC2N XMICN External Earphone Connections Headset implementation uses separate microphone and earpiece signals.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Internal Audio IHF Speaker & Stereo Audio Amplifier Integrated Hands Free Speaker, 16mm MALT, is used to generate speech audio, alerting and warning tones in RM-37. 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.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation by the UEM and the earpiece driver in UEM is a bridge amplifier. In RM-37, 8mm PICO type earpiece is used. Figure 13: 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 RM-37. Audio amplifier is controlled by the UPP. Speaker capsule is mounted in the C-cover.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Camera Camera is connected to the BB by UIF –bus. UIF is a slow (10MHz bus) which may be shared with other UI functions (e.g. LCD). This version has unidirectional TX and Rx data lines and consists of a chip enable, chip select, Tx data, Rx data, data clock and system clock. Note there is a severe restriction on image transfer in UPP v2 devices due to a DMA shortcoming.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation ExtClk is external system clock for the camera module. The clock may be AC or DC coupled. Four fixed frequencies are available (8.4, 9.6, 9.72,13 and 16.8 MHz each within +/ -100kHz). VCAMDIG is a regulated 1.8V nominal I/O logic supply for the HWA and sensor. Regulator output voltages are seen in Table 5. Global net is named VCAMDIG in schematics and connected to the sensor’s and HWA’s VIO –interface.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Clock Distribution Figure 16: Clock Distribution Diagram VR3 VCTCX 26MH HELGA 26 HELG 26 MHz 32 kHz UEM 32 kHz SLEEP UPP SLICE RFBUSCLK 13MH CBUSCLK 1MH DBUSCLK 13MHz MC DSP PLL CTSI Issue 1 04/2004 ©Nokia Corporation. CAMCLK max. 13MH LCDCLK max.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Audio Control Figure 17: Audio block diagram RM-37 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
Company confidential RM-37 7-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.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation mation 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 Helga.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface 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.
RM-37 Company confidential 7-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.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Typical current consumption The table shows the typical current consumption in different operation modes. Operation mode Current consumption Power OFF < 10 uA RX, EGSM900 75 mA, peak RX, DCS1800/PCS1900 70 mA, peak TX, power level 5, EGSM900 1700 mA, peak TX, power level 0, DCS1800/PCS1900 1000 mA, peak Issue 1 04/2004 ©Nokia Corporation.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Power Distribution Figure 20: Power distribution diagram Page 48 ©Nokia Corporation.
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation RF characteristics Channel Numbers and Frequencies System Channel number TX frequency RX frequency Unit EGSM 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 DCS1800 512 <= n <= 885 F=1710.2+0.2*(n-512) F=1805.2+0.2*(n-512) MHz PCS1900 512 <= n <=810 F=1850.2+0.2*(n-512) F=1930.2+0.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Receiver characteristics Item Values, E-GSM/GSM1800 Type Direct conversion, Linear, FDMA/TDMA LO frequencies 3700...3840 MHz / 3610...3760 MHz Typical 3 dB bandwidth +/- 91 kHz Sensitivity min. - 102 dBm (GSM1800 norm.cond.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface RF Block Diagram RM-37 Figure 21: RF Block Diagram Issue 1 04/2004 ©Nokia Corporation.
RM-37 Company confidential 7-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 Helga and it is controlled through the RFBus.
CCS Technical Documentation Company confidential RM-37 7-System Module and User Interface Figure 22: Front End RX PCS RX DCS Ant TX EGSM TX DCS/PCS RX EGSM Power Amplifier The power amplifier features include: - 50 ohm input and output, EGSM/DCS/PCS - internal power detector - low power (EGSM) and EDGE mode Issue 1 04/2004 ©Nokia Corporation.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Figure 23: Power amplifier EGSM out EGSM in DCS/ PCS out DCS/ PCS in Power detector EGSM Power control DCS/PCS Power control Mode RF ASIC Helga 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, frequencies 3420 to 3980 MHz - EGSM and DCS low noise amplifier (L
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation User Interface Modules UI module consist of a separate 4-layer UI PWB TK8 for RM-37. The User Interface features a 130 x 130 8bpp (bits per pixel) passive matrix color STN display, 4096 colours. Interface is using 9-bit data transfer. The LCD display is connected to transceiver PWB by board-to-board connector. The diagram below describes the user interface connections.
RM-37 Company confidential 7-System Module and User Interface CCS Technical Documentation Figure 25: U P P Row4 Row3 Row2 Row1 Row0 Col0 Col1 Col2 Col3 Col4 U E M PWRONX Power Switch When no key is pressed row inputs are high due to UPP internal pull-up resistors. The columns are written zero. When key is pressed one row is pulled down and an interrupt is generated to MCU. After receiving inte rupt MCU starts scanning procedure.
Company confidential RM-37 7-System Module and User Interface CCS Technical Documentation LCD & Keypad Illumination In RM-37 white leds are used for LCD and keypad illumination. For LCD illumination two leds are used and for keypad six leds. Figure 27: Coil Schottky VBAT Cin Cout V in DLIGHT En Cx Cosc Is Ext Vovp LED Driver FB Rlcd Gnd LCD Illumination R Keyboard Illumination Current through leds is controlled by transistor circuitry.
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