Customer Care Solutions Technical Documentation Engine module ISSUE 1 02/2004 COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
RM-4/RM-5 CCS Technical Documentation Engine Module [This page left intentionally blank] 2 COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
RM-4/RM-5 Engine Module CCS Technical Documentation Table of Contents Page No Abbreviations ................................................................................................................ 5 Baseband HW Introduction ........................................................................................... 8 Technical Summary .................................................................................................... 8 Modes of Operation ...........................................
RM-4/RM-5 CCS Technical Documentation Engine Module FLASH Interface ....................................................................................................... 31 FBUS Interface ......................................................................................................... 31 MBUS Interface ........................................................................................................ 32 General description of the RF circuits .................................................
RM-4/RM-5 Engine Module CCS Technical Documentation Abbreviations Abbr. Description ACI Accessory Control Interface ADC Analog Digital Connector ARM Advanced RISC Machines ASIC Application Specific Integrated Circuit ATR Answer To Reset BB Baseband BL-5C Battery type.
RM-4/RM-5 CCS Technical Documentation 6 Engine Module HW Hardware IF Interface IHF Integrated Hands Free IMEI International Mobile Equipment Identity LCD Liquid Crystal Display LDO Low Drop Out LED Light Emitting Diode Li-Ion Lithium Ion battery LPRF Low Power Radio Frequency Lynx Battery type MALT Medium And Loud Transducer Mbus Asynchronous message bus connected to MCU (phone control interface). Slow message bus for control data.
RM-4/RM-5 Engine Module CCS Technical Documentation SARAM Single Access RAM SIM Subscriber Identification Module SLEEP UEM power saving state controlled by UPP SPR Standard Product Requirements SRAM Static RAM STI Serial Trace Interface SW Software TBSF Through the Board Side Firing TI Texas Instruments, American company UEM Universal Energy Management UI User Interface UPP Universal Phone Processor VBAT Main battery voltage VCHAR Charger input voltage VCHARDET Charger detecti
RM-4/RM-5 CCS Technical Documentation Engine Module Baseband HW Introduction This document specifies the baseband module for the Nokia 2300 phone. The baseband module includes the baseband engine chipset, the UI components and the acoustical parts for the transceiver. Nokia 2300 is a hand-portable dual band 900/1800MHz phone, featuring DCT4 generation baseband (UEM/UPP) and RF (MJOELNER) circuitry.
RM-4/RM-5 Engine Module CCS Technical Documentation mable voltage of either 1.8 V or 3.0 V. The core of the UPP is supplied with a programmable voltage of 1.0 V, 1.3 V, 1.5 V or 1.8 V. The UPP operates from a 26MHz clock, coming from the RF ASIC MJOELNER, the 26 MHz clock is internally divided by two, to the nominal system clock of 13MHz. The DSP and MCU contain phase locked loop (PLL) clock multipliers, which can multiply the system frequency.
RM-4/RM-5 CCS Technical Documentation Engine Module No supply In No_Supply mode, the phone has no supply voltage. This mode is due to disconnection of the main battery or low battery voltage level. The phone is exiting from No_Supply mode when sufficient battery voltage level is detected. Battery voltage can rise either by connecting a new battery with VBAT > Vmstr+ or by connecting charger and charging the battery above Vmstr+. Power_off In this state the phone is powered off, but supplied.
RM-4/RM-5 Engine Module CCS Technical Documentation Table 1: Regulator controls VR1A Enabled; Disabled in sleep mode VR1B Not used in Nokia 2300, disabled VR2 Controlled by register writing; Enabled in sleep mode VR3 Enabled; Disabled in sleep mode VR4 Not used in Nokia 2300, disabled VR5 Enabled; Disabled in sleep mode VR6 Enabled; Disabled in sleep mode VR7 Enabled; Disabled in sleep mode IPA1-2 Not used in Nokia 2300, disabled Sleep mode The sleep mode is entered when both MCU and DSP
RM-4/RM-5 CCS Technical Documentation Engine Module DC Characteristics Supply Voltage Ranges Table 2: Absolute Maximum Ratings Signal Rating Battery Voltage 0 ... 4.39V (VBAT) Charger Input Voltage -0.3 ... 9.2VRMS (16,9 Vpeak) Following voltages are assumed as normal and extreme voltages for used battery: Table 3: Battery voltage range Signal 1 12 Min Nom Max Note VBAT 3.21V 3.80V 4.39V 1 Vcoff+ 3.0V 3.1 3.2 HW off to on Vcoff- 2.7V 2.8V 2.9V HW on to off Vmstr+ 2.0V 2.
RM-4/RM-5 Engine Module CCS Technical Documentation Regulator Voltage Ranges Table 4: BB regulators Signal Min Nom Max VANA 2.70V 2.78V 2.86V VFLASH1 2.70V 2.78V 2.86V VFLASH2 2.70V 2.78V 2.86V VSIM 1.745V 2.91V 1.8V 3.0V 1.855V 3.09V VIO 1.72V 1.8V 1.88V VCORE 1.000V 1.140V 1.235V 1.425V 1.710V 1.053V 1.2V 1.3V 1.5V 1.8V 1.106V 1.260V 1.365V 1.575V 1.890V Table 5: RF regulators Signal Min Nom Max VR1A 4.6V 4.75V 4.9V VR1B 4.6V 4.75V 4.9V 2.70V 2.61V 2.78V 2.
RM-4/RM-5 CCS Technical Documentation Engine Module Interconnection Diagram Figure 2: Power distribution diagram Baseband UEM VR1A VR1B VR2-7 RF Regulators 6 SIM VSIM VCORE UPP VANA Baseband Regulators VLED+ VIO RTC LED Driver VFLASH1 VFLASH2 VBAT Battery FLASH SRAM LCD CHACON VBAT Audio Amplifier FM Radio Accessory Regulator Vout PA Supply System Connector External Signals and Connections System connector (X102) Table 6: DC connector Pin 2 1 14 Signal VCHAR CHGND Min Nom Max C
RM-4/RM-5 Engine Module CCS Technical Documentation Table 7: External microphone Signal Min Nom Max Condition Note MIC2P (Differential input P) - - 100mVpp G=20dB 1,22kΩ to MIC1B (AC condition) MIC2N (Differential input N) - - 100mVpp G=20dB 1kΩ to GND MICB2 (Microphone Bias) 2.0 V 2.1 V 2.25 V DC Unloaded External loading of MICB2 - - 600uA DC Table 8: External speaker, differential output XEARP (HF) & XEARN (HFCM) Signal Min Nom Max 2.
RM-4/RM-5 CCS Technical Documentation Engine Module Battery connector Name Description Test usage VBAT Battery voltage terminal. GND Battery ground terminal. BSI Battery size identification. Battery calibration. Flash and local mode forcing. Battery temperature is estimated by measurement in transceiver PWB with a separate NTC resistor.
RM-4/RM-5 Engine Module CCS Technical Documentation Table 11: Internal speaker (Differential output EARP & EARN) Signal Min Nom Max Units Output voltage swing 4.0 - - Vpp Load Resistance (EARP to EARN) 26 32 - W Load Capacitance (EARP to EARN) - - 50 NF Note Differential output Speaker (IHF & ringer) Table 12: Connections between UPP and Boomer Signal From Shutdown GENIO[14] To Parameter Shutdown (p. 5) Min. Vih Vil Max. 1.2 - Unit 0.
RM-4/RM-5 CCS Technical Documentation Engine Module Table 14: Board Clocks RFBUSCLK UPP MJOELNER - 13 13 MHz Only active when bus-enable is active DBUSCLK UPP (DSP) UEM - 13 13 MHz Only active when bus-enable is active CBUSCLK UPP (MCU) UEM - 1 1.2 MHz Only active when bus-enable is active LCDCAMCLK UPP (Write) (Read) LCD 0.3 4 MHz Only active when bus-enable is active 18 3.25 0.650 COMPANY CONFIDENTIAL Copyright © 2003 Nokia. All Rights Reserved.
RM-4/RM-5 Engine Module CCS Technical Documentation Environmental Specifications Operating conditions Temperature Conditions Table 15: Temperature conditions for Nokia 2300 Environmental condition Ambient temperature Remarks Normal operation -25 ° C … +55 °C Specifications fulfilled Reduced performance -40 °C ..-25 °C and +55 °C … +85 °C No operation and/or storage < -40 °C or > +85 °C No storage or operation.
RM-4/RM-5 CCS Technical Documentation Engine Module Functional Description Audio External Nokia 2300 is designed to support a fully differential external audio accessory connection. A headset and PnPHF can be directly connected to the system connector. Detection of the different accessories is made in an analogue way by reading the DC voltage value of EAD converter. Figure 3: Headset interface 2.7V Not all components are shown Hookint /MBUS EAD Headint Bottom Connector Mic_bias 2.
RM-4/RM-5 Engine Module CCS Technical Documentation The front cover consists of two parts, an A-cover and an earmat. The earpiece circuit includes only a few components: • two 10 ohm in order to have a stable output • an EMC filter Figure 4: Earpiece interface Placed near UEM Placed in top of PWB, near earpiece UEM 10 ohm EARP EARP 10 ohm EARN EARN Microphone Acoustical design An omni directional microphone is used. The microphone is placed in the system connector sealed in its rubber gasket.
RM-4/RM-5 CCS Technical Documentation Engine Module The RC filter 2.2 kΩ and 1nF are EMC component, while the remaining 10 nF and 1 nF capacitors near the bottom connector are for ESD. Figure 6: Internal electrical microphone interface Placed near bottom connector Placed near UEM UEM 220 MICB1 1k 4.
RM-4/RM-5 Engine Module CCS Technical Documentation The speaker has an external amplifier connected (a so-called boomer) to provide sufficient power for an 8 Ω load. The boomer is implemented with a differential configuration on the input. The inputs are wired to the headset connections HF and HFCM from UEM. These two outputs can each deliver an output swing up to 1.6 Vpp before clipping occurs. HF and HFCM are 180 × out of phase.
RM-4/RM-5 CCS Technical Documentation Engine Module Figure 8: BL-5C battery The BSI values for the BL-5C batteries: Table 17: BSI levels BL-5C Battery Mode BSI (kOhm) Min Normal Type Description Max 75 Used for calculating the Capacity (BL5-C = 850mA) Service 3.2 3.3 3.4 Pull-down resistor in battery. Used for fast power-up in production (LOCAL mode), R/D purposes or in after sales, 1% tolerance resistors shall be used. Test 6.7 6.8 6.
RM-4/RM-5 Engine Module CCS Technical Documentation FM radio Headset is used as antenna. Figure 9: FM radio antenna interface UEM INT 100k HEADINT 1u 22 HF XEARP 22 HFCM XEARN 10n 10n FM 12p RFIN1 120 nH 270 nH 47p 39p RFIN2 As the chipset and the bottom connector used by Nokia 2300 doesn’t support true stereo, the stereo functionality from a radio point of view cannot be used efficiently for playing stereo over headset. ISSUE 1 02/2004 COMPANY CONFIDENTIAL Copyright © 2003 Nokia.
RM-4/RM-5 CCS Technical Documentation Engine Module Figure 10: FM radio - BB interface TEA5777 Vafl Vana 33nF MIC3P Gain MIC3N 33nF UEMC Boomer max 1.5Vrms Attenuation Gain The nominal output of the radio will be in the order of max. 86mVrms @ 22.5kHz swing, max. 190mVrms @ 50kHz swing, max. 280mVrms @ 75kHz swing. This output is routed as a single ended signal to MIC3P and internally in UEM routed to HF/HFCM (by means of an appropriate routing that either amplifies or provides attenuation).
RM-4/RM-5 Engine Module • CCS Technical Documentation Reference clock (GENIO 3) The reference clock is 13 MHz. The reference clock is only needed when the radio is active. This means that data transfer can be made without having the reference clock active. Using a reference clock of 13 MHz also indicates that the radio will not work if the phone is in sleep modes where the RF reference is turned off.
RM-4/RM-5 CCS Technical Documentation Engine Module Table 18: Overview of keyboard configuration P14 C In Up P1 int Falling edge interrupt P15 2 In Up P1 int Falling edge interrupt All lines are configured as input, when there is no key pressed. When a key is pressed, the specific line where the key is placed is pulled low. This generates an interrupt to the MCU and the MCU now starts its scanning procedure.
RM-4/RM-5 Engine Module CCS Technical Documentation Display The LCD is a black and white 96x65 full dot matrix display. The LCD cell is part of the complete LCD module, which includes C-cover, gasket, light guide, spring connector, transflector, LEDs and earpiece. Figure 12: LCD module The LCD is powered from both VFLASH1 and VIO. VFLASH1 is used for the boosting circuit and VIO for the driver chip.
RM-4/RM-5 CCS Technical Documentation Engine Module Figure 13: UEM & UPP SIM connections GND GND SIM SIMDATA C5 C6 C7 C8 C1 C2 C3 C4 SIMCLK SIMIO SIMIO SIMClk SIMClk Data Data SIMRST VSIM UEM UPP SIMIF register UIF Block UEMInt UEM digital logic From Battery Type CBusDa CBusEnX BSI CBusClk Vibra The vibra is placed in the bottom of the phone. The vibra is controlled from the UEM by a PWM (Pulse Wide Modulated) square wave signal. In Nokia 2300 Duty cycle is 40.
RM-4/RM-5 Engine Module CCS Technical Documentation Test Interfaces Production test pattern is placed on the engine PWB, for service and production purposes. The same test pattern is used for after sales purposes as well. Through MBUS or FBUS connections, the phone HW can be tested by PC software (Phoenix) and production equipment (FLALI/FINUI/LABEL). The testpads are listed in the schematic diagrams.
RM-4/RM-5 CCS Technical Documentation Engine Module Table 20: FBUS interface signals Signal FBUS_TX FBUS_RX Rise time Min Nom Max Voh 0.7*VFLASH1 VFLASH1 Vol 0 0.3*VFLASH1 Vih 0.7*VFLASH1 VFLASH1 Vil 0 0.3*VFLASH1 Tr 12.5 ns GND Note for TX and RX signals 0 MBUS Interface The MBUS interface is used for controlling the phone in R&D and CCS. It is a bi-directional serial bus between the phone and PC. In production, the phone initialisation is made using MBUS.
RM-4/RM-5 Engine Module CCS Technical Documentation General description of the RF circuits In the following general description the different parts is described at block level. Receiver signal path The signal from the antenna pad is routed to the RX/TX switch (Z700). If no control voltages are present at VANT2 and VANT1, the switch works as a diplexer and the GSM900 signal is passed through the RX/TX switch to the GSM-RX and the GSM1800 signal to PCS-RX.
RM-4/RM-5 CCS Technical Documentation Engine Module VDDRXF VDDRXBB VRX Mjoelner BIQUAD RBEXT 2,7k RXIP RXIM RX LPF1 BBAMP DCN1 Ant Switch DCN2 LPF2 GSM AGC TX RXQP BIQUAD RX RXQM BBAMP PCN 2 TX 2 1/2 LPF1 2 2 DCN1 AGC DCN2 LPF2 VPLL VDDPLL VDDLO VDDPRE 1/4 VCP VDDCP ϕ NDIV ADIV 64/65 charge pump CPOUT loop filter 2 1/4 1/2 RF Controls LOCNT REFCNT 2 2 RF Controls 1800 / 1900 Balun 2 2 Buffer PA REFOU T XTALM XTALP 2 2 2 VXO VDDXO VTXBL VTXBH VTXLOL
RM-4/RM-5 Engine Module CCS Technical Documentation The PLL is operating at twice the channel center frequency when transmitting or receiving in the GSM1800 band. For the GSM900 band the PLL is operating at 4 times the channel frequency. Therefore divide-by-2 and divide-by-4 circuits are inserted between the PLL and output and the LO input for the GSM900 and GSM1800 mixers.
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