User Guide

ManualsBrandsNokia ManualsCell Phone7260

ISSUE 1 09/2004 COMPANY CONFIDENTIAL

Nokia Customer Care

7 - System Module

Summary of content (56 pages)

PAGE 3
RM-17 7 - System Module Nokia Customer Care Table of Contents Page No Glossary of Terms............................................................................................... 7 Baseband ........................................................................................................... 10 Block diagram .................................................................................................. 11 Environmental Specifications ..........................................................
PAGE 4
RM-17 Nokia Customer Care 7 - System Module Specifications ................................................................................................. 25 CCP bus ......................................................................................................... 25 CCI bus .......................................................................................................... 25 UIF bus ..........................................................................................................
PAGE 5
RM-17 7 - System Module Nokia Customer Care Frequency concept .......................................................................................... 45 RF power supply configuration ........................................................................ 45 RF block diagram............................................................................................. 46 Antenna switch (TX/RX switch)........................................................................ 47 Receiver .....................
PAGE 7
RM-17 7 - System Module Nokia Customer Care Glossary of Terms ACI Accessory Control Interface ADC Analogue to Digital Converter AFC Automatic Frequency Control ASIC Application Specific Integrated Circuit ASM Antenna switch module BB Baseband BSI Battery Size Indicator DCT4 Digital Core Technology, generation 4 DSP Digital Signal Processor DUT Device under test EDGE Enhanced Data Rates for Global Evolution EGPRS Enhanced General Packed Radio Service EMC Electro Magnetic Compatibil
PAGE 8
RM-17 Nokia Customer Care 8 7 - System Module IMEI International Mobile Equipment Identity I/O Input/Output IR Infrared IrDA Infrared Data Association LCD Liquid Crystal Display LED Light Emitting Diode LDO Low Drop Out LNA Low Noise Amplifier LO Local Oscillator MCU Micro Controller Unit PA Power Amplifier Phoenix SW tool of DCT4 PLL Phase Locked Loop PWB Printed Wired Board RF Radio Frequency RTC Real Time Clock RX Receiver SA Spectrum analyzer SIM Subscriber Identi
PAGE 9
RM-17 7 - System Module Nokia Customer Care VBU Back-up Battery Cut Off voltage (typical: 2.0 V) VCO Voltage controlled oscillator VCTCXO Voltage controlled temperature compensated oscillator V Master Reset Threshold (typical: 2.1 V) 8-PSK ISSUE 1 09/2004 Phase Shift Keying with 8 states (Modulation scheme for EDGE/ EGPRS) COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 10
RM-17 Nokia Customer Care 7 - System Module Baseband The RM-17 product is a DCT4.5 Fashion segment phone. It is a triple band EGSM900/ GSM1800/GSM1900 phone.
PAGE 11
RM-17 7 - System Module Nokia Customer Care ■ Block diagram Figure 1: Baseband block diagram VV Camera RF Interface LCD FLASH Active TFD colour 128 Mbit SRAM 16 Mbit LED drivers SIM UEMEK UPP8M Battery Keyboard BL-5B Keyboard Illumination Backup bat IR Int VIBRA Charger IHF DC jack System connector Pop-Port FM-Radio UEMEK supplies both baseband and RF with power via built in voltage regulators, which are connected to the battery. The RF parts use mainly 2.
PAGE 12
RM-17 Nokia Customer Care 7 - System Module The UEMEK ASIC handles the analog interface between the Baseband and the RF section. UEMEK 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 UEMEK supplies the analog TXC and AFC signals to the RF section according to UPP signal control. There are also separate signals for PDM coded audio.
PAGE 13
RM-17 7 - System Module Nokia Customer Care Environmental Specifications ■ Absolute maximum ratings Table 1: Absolute maximum ratings Signal Note Battery Voltage (Idle) -0.3…5.5V Battery Voltage (Call) Max 4.8V Charger Input Voltage -0.
PAGE 14
RM-17 Nokia Customer Care 7 - System Module ■ Frequencies in baseband Table 4: Frequencies in baseband Frequency Context UPP UEMEK 32 kHz SleepClk 1 MHz CBUS X X Up to 1 MHz RFConvClk X X 6,5 MHz Display IF X 3,25 MHz SIMIF 13 MHz DBUS, RFBUClk X 26 MHz RF Clk X 52 MHz Memory Clock X Flash SIM Comment X Estimation X X Min X X ■ PWB Characteristics of the PWB • Single PWB • 8 layer board • Double side assembled Key components Figure 2: Key components 14 COMPANY CONF
PAGE 15
RM-17 7 - System Module Nokia Customer Care Table 5: Key components Position Component Name Code D1470 HW Accelerator 4377033 D2800 UPP8M v 3.5 4371105 D2200 UEMEKv2.0 4376371 D3000 Combo Memory (128M NOR + 16M UTRAM) 4347043 ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 16
RM-17 Nokia Customer Care 7 - System Module Technical Specifications ■ Baseband core UPP Main characteristics of the used UPP are: • DSP, LEAD3 16 bit DSP core 32 bit IF max.
PAGE 17
RM-17 7 - System Module Nokia Customer Care The combo is supplied by single 1,8 V for read, write and erase operations. For accelerated flash programming, Vpp = 9.0 V has to be applied to VPP input of the combo device. The combo memory is housed in a 44-ball FBGA. ■ Energy management The energy management of RM-17 is based on BB 4.0 architecture. A so-called semi fixed battery (BL-5B) supplies power primarily to UEMEK ASIC and the RF PA. The UEMEK includes several regulators to supply RF and Baseband.
PAGE 18
RM-17 Nokia Customer Care 7 - System Module In Active mode, the RF regulators are controlled by SW writing into UEMEK´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 the low quiescent current mode. VR3 is always enabled in Active mode. Sleep Mode The sleep mode is entered when both MCU and DSP are in stand–by mode.
PAGE 19
RM-17 7 - System Module Nokia Customer Care Figure 3: Power Distribution Diagram Baseband CAMERA To RF Parts UEME RF Regulators LCD 6 SIM VSIM VFLASH1 VCORE VAUX3 VLED+ LEDs VR1A VR1B VR2-7 UPP VANA Baseband Regulators White LED Driver VFLASH1 VAUX2 Battery Combo Memory VIO RTC FM-Radio CHACON VBAT IR Vibra Vout PA Supply System Connector ■ DC characteristics Supply voltage ranges Table 6: Battery voltage ranges Signal Min VBAT 3.1V Nom 3.7V Max 4.2V Note 3.2V SW cut off 2.
PAGE 20
RM-17 Nokia Customer Care 7 - System Module VANA 80 2.70 / 2.86 (2.78) VFLASH1 70 2.70 / 2.86 (2.78) VAUX2 70 2.70 / 2.86 (2.78) VAUX3 10 2.70 / 2.86 (2.78) VR2 100 2.70 / 2.86 (2.78) VR3 20 2.70 / 2.86 (2.78) VR4 50 2.70 / 2.86 (2.78) VR5 50 2.70 / 2.86 (2.78) VR6 50 2.70 / 2.86 (2.78) VR7 45 2.70 / 2.86 (2.78) VR1A 5* 4.6 / 4.9 (4.75) VR1B 5* 4.6 / 4.9 (4.75) * When both enabled. Load current is 10 mA if other is disabled.
PAGE 21
RM-17 7 - System Module Nokia Customer Care Function Groups ■ Battery A battery of the type BL-5B is used. It is a Li Ion based standard cell. The battery capacity is 760mAh. The battery has a three-pin connector (BTEMP is not used). The battery does not support temperature measurement inside the battery pack. In order to get temperature information of the battery, the NTC mounted on the PWB within the BB area is used. Ni based batteries are not supported. The BSI resistor has a nominal value of 75 kOhm.
PAGE 22
RM-17 Nokia Customer Care 7 - System Module Figure 5: Internal microphone connection Internal speaker The internal earpiece is a dynamic earpiece with an impedance of 32 ohms. The earpiece is low impedance one since the sound pressure is to be generated using current and not voltage as the supply voltage is restricted to 2.7V. The earpiece is driven directly by the UEMEK and the earpiece driver (EARP & EARN outputs) is a fully differential bridge amplifier with 6 dB gain.
PAGE 23
RM-17 7 - System Module Nokia Customer Care IHF speaker UEMEK has an integrated Audio power amplifier to generate output for the IHF speaker. Figure 7: Block diagram of IHF For RM-17, the Integrated Hands Free Speaker is used to generate hands free speech, and also polyphonic ringing tones. The speaker capsule is mounted into the A Cover, and spring contacts are used to connect the IHF Speaker contacts to the PWB. The IHF is furthermore used to generate alerting and warning tones.
PAGE 24
RM-17 Nokia Customer Care 7 - System Module Figure 8: Camera module Key features • VGA resolution sensor • On-chip viewfinder • Video data interface - CCP • Command interface - CCI • 2,8/1,8 V operation • On board 11 bit ADC • Automatic exposure control (AEC) • Automatic white balance (AWB) • Small physical size • Ultra low power standby mode • On board PLL 24 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 25
RM-17 7 - System Module Nokia Customer Care Specifications Table 8: Camera specification Feature Description Resolution 480 x 640 pixels Size 10,6 x 8,7 x 5,8 mm Sensor technology 0,35 µm HCMOS6i Pixel size 5,6 x 5,6 µm Signal to noise 35 dB @ 100 lux Minimum illumination < 10 lux Lens f# 2.
PAGE 26
RM-17 Nokia Customer Care 7 - System Module UIF bus UIF is a slow (6,5 MHz) 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. Clocks The cameras and HWA can use 19.44MHz, 19.2MHz, 16.8MHz and 13MHz clocks in CCP/CCI mode. The cameras can also use the half-frequencies. The HWA can use 16.8MHz, 13MHz, 9.72MHz, 9.6 MHz and 8.4MHz clocks for UIF mode.
PAGE 27
RM-17 7 - System Module Nokia Customer Care Characteristics Table 9: LCD Characteristics Active display area format 130 columns x 130 rows UserInterface display area format 128 columns x 128 rows Module size (width x height x thickness) 33,9 mm x 41.3 mm x 3.
PAGE 28
RM-17 Nokia Customer Care 7 - System Module LCD connector The TE signal is not used. Table 10: LCD connector Pin No: Description Type Symbol Parameter Min 1 Power supply OUT VLED- LED power supply current 2 Power supply voltage IN VDDI Operating voltage 1.
PAGE 29
RM-17 7 - System Module Nokia Customer Care Figure 10: LCD display Connector type (Plug) Hirose DF23C-12DP-0.5V 6 1 1 6 7 12 12 7 Top view Back view Test possibility Phoenix Display Test For troubleshooting see Display faults in Baseband Troubleshooting Instructions. ■ Keypad The RM-17 keys are connected to the UPP via the KEYB(10:0) bus. The keypad consists of a 5x4 matrix of 5 rows, ROW0 – ROW4, and 4 columns, COL1 – COL4.
PAGE 30
RM-17 Nokia Customer Care 7 - System Module Figure 11: RM-17 keypad ■ Illumination In RM-17, three white LED’s are used for LCD backlight and two red LED’s for keypad lightning. A step up DC-DC converter is used as a LED driver that is configured as a constant current source. Test possibility Phoenix LED test For troubleshooting see Display faults in Baseband Troubleshooting Instructions. ■ SIM The whole SIM interface locates in UPP and UEMEK.
PAGE 31
RM-17 7 - System Module Nokia Customer Care Both 3V and 1.8V SIM cards are supported. A register in the UEMEK selects SIM supply voltage. It is only allowed to change the SIM supply voltage when the SIM IF is powered down.
PAGE 32
RM-17 Nokia Customer Care 7 - System Module Figure 13: FM radio with UPP/UEME CBUSClk UPP UEMEK CBUSDa Busen MIC3PN MIC3PR MIC3N MIC3P VANA VIO SleepClk32K Clk32k GENIO 24 CBUSEnX CBUS / I²C 1.8V VCCD INT 2.8V (15.5mA max) VCCA VAFL ANT FM Radio TEA5761 VAFR Function The communication between the FM radio and the phone is done using CBUS. Headset is used as FM antenna. The 32kHz sleep clock of UPP is used as reference clock for the FM radio.
PAGE 33
RM-17 7 - System Module Nokia Customer Care maximum speed is 1.152Mbit/s. The IR transceiver can be set into shutdown mode by setting SD pin to logic ’1’ for current saving reasons. Figure 14: IR interface IR UPP IRRx IRTx GENIO10 IACCDIF(1) RXD IACCDIF(0) TXD SD GENIO(10) RXD TXD SD VBAT LEDA VIO VLOGIC VFLASH1 VCC ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 34
RM-17 Nokia Customer Care 7 - System Module Interfaces ■ BB-RF interface The interface between the Baseband and RF can be divided into three categories: • The digital interface from UPP to the RF ASIC (Helgo). The serial digital interface is used to control the operation of different blocks in the RF ASICs • The analogue interface between Baseband and RF. The analogue interface consists of Tx and Rx converter signals. The power amplifier control signals TXC and AFC also come from the UEMEK.
PAGE 35
RM-17 7 - System Module Nokia Customer Care Table 11: System connector interface description Pin # Signal Notes 1 VCHAR 2 GND Charge ground 3 ACI Insertion & removal detection / Serial data bi-directional 1 kbit/s 4 Vout Power supply for external accessories 5 Not used in RM-17 6 FBUS_RX Serial data from accessory to phone / 115 kbit/s 7 FBUS_TX Serial data from phone to accessory / 115 kbit/s 8 GND Data ground 9 XMIC N Negative audio in signal 10 XMIC P Positive audio in sig
PAGE 36
RM-17 Nokia Customer Care 7 - System Module DC plug NMP standard 2- or 3-wire chargers are compatible with the charger IF. The IF does not support 3-wire charging control. Nevertheless, it is potential possible to use a 3-wire charger without PWM charging support. RM-17 uses a 3mm DC plug besides the PopPortTM IF. 36 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 37
RM-17 7 - System Module Nokia Customer Care Component Placement Hints When exchanging components, all components must be placed properly. There is an extra challenge when: • Components are manually placed • Lead free process is applicable (which is the case for all RM-17 devices) Therefore, the following placement support and check possibilities have been implemented: Figure 16: PWB overview ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 38
RM-17 Nokia Customer Care 7 - System Module ■ Power switch (S2419) The power switch placement has a direct influence to the phone usability and failure rates. Improper placement can cause difficulties to switch the phone on / off or increase the switch’s sensitivity when dropping the phone (peeling of the switch or its pads). For proper placement, the corner marks need to fit properly even after soldering to get proper functionality of the switch.
PAGE 39
RM-17 7 - System Module Nokia Customer Care ■ Camera socket (X1470) There are also corner marks introduced in order to support placement and checking placement after rework process. ■ Hardware accelerator (D1470) There are also corner marks introduced in order to enable checking placement after rework process. ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 40
RM-17 Nokia Customer Care 7 - System Module ■ UEM (D2800) There are also corner marks introduced in order to help checking placement after rework process. ■ Flash (D3000) There are some corner marks introduced. ■ SIM card reader (X2700) There are some corner marks introduced. ■ System connector (X2002) There are also some marks introduced (bars) in order to help placing the system connector and checking placement after rework.
PAGE 41
RM-17 7 - System Module Nokia Customer Care ■ UEM (D2200) There are also corner marks introduced in order to help checking placement after rework. ■ Battery connector (X2000) There are also some corner marks introduced in order to support placement of the connector and checking placement after rework. ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 42
RM-17 Nokia Customer Care 7 - System Module ■ Label placement Different countries require different labels. This guide explains where it is possible to place these labels. In the figure below, there are numbered shaded areas (1 - 5) where labels can be placed. On the right hand side there are numbers and labels. The numbers refer to the place where the label is allowed to be placed.
PAGE 43
RM-17 7 - System Module Nokia Customer Care RF Module Description The RF module performs the necessary high frequency operations of the triple-band engine. Both the transmitter and receiver have been implemented by using a direct conversion architecture, which means that the modulator and demodulator operate on the channel frequency. No intermediate frequencies are used for up- or down-conversion. The core of the RF is an application-specific integrated circuit (RF ASIC), Helgo85.
PAGE 44
RM-17 Nokia Customer Care 7 - System Module ■ General specifications of the transceiver Parameter 44 Unit Cellular System GSM900, GSM1800, GSM1900 Modulation schemes GMSK, 8-PSK RX Frequency Band GSM900: 925 … 960 MHz GSM1800: 1805 ... 1880 MHz GSM1900: 1930 … 1990 MHz TX Frequency Band GSM900: 880 … 915 MHz GSM1800: 1710 ... 1785 MHz GSM1900: 1850 … 1910 MHz Output Power GMSK GSM900: +5 … +33 dBm (3.2 mW … 2 W) GSM1800: +0 … +30 dBm (1.0 mW … 1 W) GSM1900: +0 … +30 dBm (1.
PAGE 45
RM-17 7 - System Module Nokia Customer Care ■ Frequency concept The 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 modulated signals from baseband are directly converted up to the transmission frequency and the received RF signals directly down to the baseband frequency.
PAGE 46
RM-17 Nokia Customer Care 7 - System Module Figure 18: RF power distribution diagram UEM VR1 VR2 4.75 V [ 4.6V ... 4.9V ] 2.78 V [ 2.70V ... 2.86V ] charge pump (VCP) Tx modulator (Vcc_ModOut) TX buffer & EDGE ALCs (VRF_TX) 2.78 V [ 2.70V ... 2.86V ] VCTCXO (+VCC) VR3 digital interface (VDIG) 2.78 V [ 2.70V ... 2.86V ] Rx Front End (VRF_RX) VR4 Bias & Rx CH filters (VF_RX) RF controls (VPAB_VLNA) VR5 2.78 V [ 2.70V ... 2.86V ] PLL prescaler (VPRE) phasing dividers of Rx (VLO) VR6 2.
PAGE 47
RM-17 7 - System Module Nokia Customer Care Figure 19: RF block diagram VLNA 1900 Rx VRF_RX RXIP Balun SAW RF Front-end Module LNAB_P LNA_P HB BP 1800 Rx LC LB LP SAW RXQP VBB VF_RX INTEGRATED LC LOW-PASS FILTERS ESD 900 Rx FILTER SAW AND AGC FUNCTION VDIG BUILT-IN DC COMP. 1900 Tx VBB VR5 VLO 900 Tx VPRE,VDIG,VCP VPRE PLL VRF_RX VR4 LC RFTEMP temp sensor EGSM VR6 LC VF_RX VPAB_VLNA CTRL inputs VR3 VDIG VR2 VRF_TX VR1 VCP VLO VR7 VBB Divide Balun by 2/4 2.
PAGE 48
RM-17 Nokia Customer Care 7 - System Module VANT_2 VANT_3 VANT_1 Rx1 Rx2 Rx3 Tx1 VC1 VC2 VC3 GSM GSM GSM GSM GSM 900 1800 1900 900 1800/1900 Rx Rx Rx Tx Tx [Volt] [Volt] [Volt] 0 0 0 0 0 0 0 2.6 2.6 0 2.6 0 2.6 2.6 0 Tx2 X X X X X To switch the TX-GSM 1800/1900 path both signals VANT2 and VANT3 have to be activated. Receiver Each receiver path is a direct conversion linear receiver.
PAGE 49
RM-17 7 - System Module Nokia Customer Care The VCTCXO (Voltage Controlled Temperature Compensated Crystal Oscillator) generates the clock frequency of 26 MHz. This frequency is buffered in the RF ASIC and fed to the UPP. Additionally, it is used as the reference frequency for the RF PLL. The frequency of the VCTCXO is locked into the frequency of the base station with the help of an AFC voltage which is generated in the UEM by an 11 bit D/A converter.
PAGE 50
RM-17 Nokia Customer Care 7 - System Module The SAW filters provide the wanted out-of-band blocking immunity. The SAW filters have approximately 2.5 to 3 dB insertion loss. The GSM 900 and the GSM 1800 filters are matched to the corresponding LNA inputs of the RF ASIC with a differential matching network (LC-type). For GSM 1900 an external LNA improves the noise figure of the receiver. The external LNA provides a gain of approximately 17 dB.
PAGE 51
RM-17 7 - System Module Nokia Customer Care Transmitter signal paths VLNA 1900 Rx VRF_RX RXIP Balun SAW RF Front-end Module LNAB_P LNA_P HB BP 1800 Rx LC LB LP SAW RXQP VF_RX VBB INTEGRATED LOW-PASS FILTERS LC ESD 900 Rx FILTER SAW AND AGC FUNCTION VDIG BUILT-IN DC COMP. 1900 Tx VBB VR5 VLO 900 Tx VPRE,VDIG,VCP VPRE PLL VRF_RX VR4 LC RFTEMP temp sensor EGSM VR6 LC VF_RX VPAB_VLNA CTRL inputs VR3 VDIG VR2 VRF_TX VR1 VCP VLO VR7 VBB Divide Balun by 2/4 2.
PAGE 52
RM-17 Nokia Customer Care 7 - System Module In GMSK mode, the output signal of the RF ASIC has constant level as the ALC amplifiers are set to constant gain. The different power levels are generated by the gain variation of the power amplifier. In EDGE mode, the ALC amplifiers generate the different power levels and the PA is set to constant gain. Frequency synthesizer signals The reference oscillator is implemented as Voltage Controlled Temperature Compensated Crystal Oscillator (VCTCXO) module.
PAGE 53
RM-17 7 - System Module Nokia Customer Care Printed Wiring Board Figure 20: Assembled PWB with shielding chambers ISSUE 1 09/2004 COMPANY CONFIDENTIAL Copyright © 2004 Nokia. All Rights Reserved.
PAGE 55
RM-17 7 - System Module Nokia Customer Care List of RF key components: Position Z7800 Z7802 Component Name Supplier and Description Antenna Switch Module ASM 1) Hitachi Metals, M090QV 455B084* 2), 3) Murata, SPq* DA269 *q means date code which will change 4550305 1) FMD, B2CC 4511499 2), 3) Murata, 4511457 SAW1800 RX Code SAFEKG84MFC0F04 Z7801 SAW1900 RX 1) Epcos, LF55F 4511503 2), 3) Murata, 4511459 SAFEJ1G96KB0F04 N7500 RF ASIC (Helgo 8.