Customer Care Solutions NMM-3 Series Transceivers 7 - System Module & UI Issue 1 (11/2003) Copyright 2003 Nokia Corporation Company Confidential Page 7-1
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation Table of Contents Page No Introduction ............................................................................................................................................. 5 System Module Baseband .................................................................................................................... 5 Power Distribution Diagram ...............................................................................
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI General ............................................................................................................................................. 30 Description of the RF Related Converters .............................................................................. 31 GSM RF ..................................................................................................................................................
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation This page has been delibrately left blank Page 7-4 Copyright 2003 Nokia Corporation Company Confidential Issue 1 (11/2003)
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation Introduction The NMM-3 System module (or Engine) consists of Baseband and RF sub-modules, a summary of the function and operation of the Baseband sub-modules are described here. System Module: Baseband Main functionality of the baseband is implemented into two ASICs: TIKU and UEME.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation • An extra regulator for Tomahawk so saving small area and cost needed for an external regulator. • Stereo audio support for stereo tomahawk accessories, which is necessary for the Music Player. • Wider audio bandwidth that can be used to improve audio quality of MP3/AAC and ring tones. Baseband power is supplied from a 2.8V analogue voltage and 1.8V I/O voltage.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation of working in various modes from ordinary telephone voice quality to near CD quality. An 8ohm output loudspeaker driver is available for integrated handsfree use. UEME has twin stereo codecs for stereo headsets. The audio signals are passed from Tiku in the form of LEFT and RIGHT PDM signals plus and audio clock. The clock and PDM speed changes according to the quality mode. UEME digital i/o voltages are 1.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation Environmental operating conditions Temperature Conditions: NMM-3 should operate with full functionality within an ambient temperature range of 10°C to +60°C, and with reduced functionality between -25°C to -10°C and +55°C to +75°C. Humidity and Water Resistance: Full functionality within humidity range of 5% to 95%. Condensed or dripping water may cause intermittent malfunctions.
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI Active In the active mode the phone is in normal operation, scanning for channels, listening to a base station, transmitting and processing information. There are several sub–states in the active mode depending on if the phone is in burst reception, burst transmission, if DSP is working etc. One of the sub–state of the active mode is Bluetooth on state, enabled by UEME.
NMM-3 7 - System Module & UI Signal Name Pin Number Company Confidential CCS Technical Documentation Function VBAT 1 Positive battery terminal BSI 2 Battery capacity measurement (fixed resistor inside the battery pack) GND 3 Negative/common battery terminal Battery temperature measurement In Lynx batteries there are neither BTEMP pin nor NTC resistor. Battery’s temperature is estimated by the measurement of a discrete NTC resistor in the phone located close to the battery.
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI All baseband regulators are switched on at the UEME power on except SIM and VAUX1, 2, 3 regulators that are controlled by the MCU (VFLASH2 is not used on NMM-3). The UEME internal watchdogs are running during the UEME reset state, with the longest watchdog time selected. If the watchdog expires the UEME returns to power off state.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation The monitored battery functions are: • Battery voltage (VBATADC), • Battery type (BSI) • Battery temperature (BTEMP). The battery type is recognized through a resistive voltage divider. In phone there is a 100kOhm pull up resistor to VFLASH1 in the BSI line and the battery has a pull down resistor in the same line. Depending on the battery type the pull down resistor value is changed.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation Current Sense track resistor VBAT VBAT BSI GND UEME D200 Sense In ZOCUS CBUS N201 VDD GND To determine the functionality of ZOCUS, use Phoenix ADC Reading option to read the phones Battery average current, the value returned is calculated from values measured by ZOCUS. Also self-test will prove CBUS connectivity to ZOCUS.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation Pin Description: No.
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI No. Bluetooth Name 22 TDO - JTAG test output / No Connection 23 TDI - JTAG data input / No Connection 25 TCK - JTAG clock / No Connection 42 WRX - Write enable / No Connection NMM-3 Name Function / Destination Camera A 14-way connector connects the camera and shield housing attached is on B-side of the engine. This uses the differential camera interface on TIKU. 1.8V Supply: UEME VCORE programmed to 1.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation No. Camera Name NMM-3 Name NMM-3 Destination Function 11 CLK - CIFCLKN CIFClkN TIKU Fast serial data out which is inverted to Clk+ 12 VDD VCAM VOUT N102 Reg 2.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation VBAT TOKO 350mA pk boost circuit. Switching freq=600kHz DLIGHTPWM +KEYLED 10mA max +LCDLED 15mA 22mA 10.5V nom 0.5V Blue KEY LEDS White LCD LEDS -LCDLED 33R 22R VFLASH1 constant current sink 3.5V (8.5mA) KLIGHTPWM 1.9V -KEYLED ENGINE MODULE 220R UI MODULE LED brightness is controlled by a PLUM to DLIGHT and KLIGHT enable.
NMM-3 7 - System Module & UI UI Connector Company Confidential CCS Technical Documentation LCD Connector PIN Function PIN Name Name 24 COL2 Keypad Column 25 ROW4 Keypad Row 26 ROW3 Keypad Row 27 GND 11 GND Ground 28 GND 12 GND Ground 29 ROW2 Keypad Row 30 ROW1 Keypad Row 31 ROW0 Keypad Row 32 COL3 Keypad Column 33 DIFRDX 17 RDX Memory read enable (active low) 34 DIFWRX 18 WRX Memory write enable (active low) 35 LCDRSTX 20 RESX Reset (active low) 36 GND
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation SIM Interface NMM-3’s SIM interface uses the standard DCT4 interface, provided by TIKU and UEME. This complies with international standard specifications. The SIM interface signals are protected by SIM EMC/ESD ASIP (R407). UEME contains the SIM interface logic level shifting. SIM interface can be programmed to support 3V and 1.8V SIMs. SIM supply voltage is selected by a register in the UEME.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation External Accessory Interface Pop-Port System Connector Because of NMM-3’s shape, there is one deviation from the Tomahawk (pop-Port) mechanical interface that affects an in-car holder solution: The charger jack will be mounted remotely from the system connector. The charger pin on the Pop-Port interface is not connected.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation A B Charger connector Pin No / Signal Name Signal Description Spectral Range Voltage / Current Levels A. GND Charge GND - 0.85A B. Charge V Charge DC 0-9V / 0.85A Notes Inner pin Charger interface. NMM-3 conforms to the global Nokia Charger Interface ACI The ACI (Accessory Control Interface) is a point-to-point, bi-directional serial bus.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation The Nokia USB device solution is supported using the Wireless 2 Function Controller (W2FC) core block in the TIKU ASIC. The core completes several USB functions automatically and is controlled by the ARM9 MCU. NUT (D300)provides the interface between the ASIC's 1.8 V bus and the 3.3 V USB data bus. Nokia USB Transceiver (NUT) is fully compliant with the Universal Serial Bus Specification Rev. 1.1.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation External Microphone connection: HOOKINT MICB2 UEME D200 R415 MIC2P MIC2N EMC / ESD Components XMICP XMICN System Connector Pop-Port External Earphone Connections The external earphone output has stereo fully differential lines are connected to UEME HF outputs HF, HFCM, HFR and HFCMR. The external audio is processed by the Audio Receive Path in UEME, and controlled by TIKU.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation IHF speaker connections: UEME D200 PAOUTP PAOUTN Internal Microphone The internal microphone capsule is mounted in the C-cover. The microphone is omni directional and is connected to UEME microphone inputs MIC1P and MIC1N. The microphone input is asymmetric and the UEME (MICB1) provides a bias voltage.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation UI Module UEME D200 EARP EARN Memory Block PDRAM The PDRAM block is the internal memory system for TIKU. It contains the following subblocks: • Boot ROM, containing MCU program code. The boot ROM size is 4k bytes (1k x 32). • 256 Kbytes of x32 RAM (organized as 4 banks of 16k x 32) for the Cellular DSP code.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation Pin Control System control enable 1=On UEMRSTX enabled at UEME delay0 0=0ff mode 1=ON SLEEPX Rises when PURX=1, then under deep sleep control. NMM-3 Test interfaces The following interfaces available: • 9 way test access pads including Fbus, flashing, DAI if needed (Mbus pin) and STI. • 3-way battery interface repeated under the battery used for production test.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation RF Regulators Signal Min Nom Max Output Current VR1A / VR1B 4.60V 4.75V 4.90V Imax = 10mA VR2 2.70V 2.61V 2.78V 2.78V 2.86V 2.95V 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.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation Table 1: Voltage supplies and references Signal name From To Function VR2 UEME TEX, HELGO WCDMA: TEX supply voltage GSM: VRF_TX. VR3 UEME VCTCXO, HELGO VCTCXO. GSM: VDIG. RFCLK buffer VR4 UEME REX, HELGO WCDMA: REX LNA, demod, biasing, local buffer. GSM: VRF_RX, VF_RX, VBB VR5 UEME REX, HELGO WCDMA: REX BB gain, filter, AGC, VLO, synthesizer.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation RF-BB Interface Table 2: Binary signals Signal name From To Function RFBusEn1X TIKU RF (REX, TEX, HELGO) Data enable for RF-IC RFBusDa TIKU RF (REX, TEX, HELGO) Data for PLL and RX AGC RFBusClk TIKU RF (REX, TEX, HELGO) Clock RXA1/GenIO 9 TIKU REX WCDMA RX AGC one step tuning RXA2/GenIO 10 TIKU REX WCDMA RX AGC one step tuning TXP/GenIO 2 TIKU HELGO GSM transmitter power amplifier enable REXRstX/GenIO
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation Table 3: Analog signals Signal name TXC From UEME To Function HELGO, WCDMA PA SMPS GSM transmitter power control, WCDMA PA SMPS converter control RF block diagram General The GSM and WCDMA RF engines are based on direct conversion architecture. GSM TX/RX design is based around the HELGO RF ASIC. The WCDMA RX design is based around the REX ASIC.
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI Description of the RF Related Converters UEME: • The single ended GSM RXIQ signals from HELGO are routed to the 12 bit AD converters in UEME Figure 2. VREFRF02 is a reference voltage for the converters. • GRF_temp is using channel 6 and WTX_temp channel 4 of the 11 channel AD converter. GRF_temp is used for GSM temperature compensation and WTX_temp for WCDMA TX gain temp.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation UEME BB AGC HELGO VREFRF02 RXIQ 12 bit ADC 12 bit ADC IQ modulator TXC 10 bit DAC 11 bit DAC GRF_temp 11 channel ADC VREFRF01 IPA1 4 bit DAC WTX_Temp WCDMA PA SMPS VCTCXO AFC WCDMA PA bias TIKU TEX IQ modulator HEX 10/8 bit DAC I/U TXIQ MUX 10/8 bit DAC I/U Iref2 Iref1 32 uA 32 uA 10 bit AuxDAC1 10 bit AuxDAC2 REX 6 bit ADC RXIQ 6 bit ADC LNA IQ d BB filter BB AGC d l t VrefL Vref VrefM VrefH
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation GSM RF GSM RF Characteristics Table 4: GSM900 / GSM1800 System Characteristics Item Value (GSM900 / GSM1800) Receive frequency range 925…960 MHz / 1805…1880 MHz Transmit frequency range 880…915 MHz / 1710…1785 MHz Duplex spacing 45 MHz / 95 MHz Channel spacing 200 kHz Number of RF channels 174 / 374 Power class 4 (2 W) / 1 (1 W) Number of power levels 15 / 16 Table 5: Transmitter Characteristics Item Value (GSM
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation GSM functional descriptions RF block diagram The figure below shows the block diagram of the dual band GSM900/1800 section of the transceiver. It is based around the HELGO RFIC which is a direct conversion modulator/ demodulator. The main off chip ICs shown are power amplifier module, antenna switch, TX /RX VCO-module TX SAW filter and VCTCXO.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation GSM Frequency Synthesizer The PLL is located in HELGO and is controlled via serial RFBus. There is a 64/65 (P/P+1) prescaler, N- and A-divider, reference divider, phase detector and charge pump for the external loop filter. The LO signal, generated by the VCO is fed through a 180deg balanced phase shifter to the prescaler. The prescaler is a dual modulus divider.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation into IQ-modulator in HELGO. The LO-signal for the modulator is generated by a VCO which is divided by 4 for the GSM900 band and 2 for the GSM1800 band. In the GSM900 branch there is a SAW filter before the PA to attenuate unwanted signals and wide-band noise from the HELGO IC. The GSM1800 band uses a balun to convert the differential modulator signal output to single ended.
Company Confidential CCS Technical Documentation DIR COUPLER NMM-3 7 - System Module & UI EGSM900 PA TX_OUT TX_IN TX_OUT KGSM_PA Kcp GSM1800 PA TX_IN TXP 1p8 R1 22K DETECTOR K = -R1/R2 Kdet 3k3 R2 4k7 DOMINANT POLE KDCS_PA 68N 68N 33R 33R TXP Ctemp 2n + 10pF 3k3 10pF ERROR AMPLIFIER + TXC Figure 5: GSM power control loop GSM receiver The GSM receiver is a direct conversion, dualband linear receiver. From the antenna the received RF-signal is first fed to the ASM.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation After the pregain stages there are demodulator mixers at each signal path to convert the RF signal directly down to baseband I- and Q-signals. Local oscillator signals for the mixers are generated by an external VCO the frequency of which is divided by two in GSM1800 and by four in GSM900.
Company Confidential NMM-3 7 - System Module & UI CCS Technical Documentation monitoring, long term average value is used instead. There is 54 dB gain control in 6 dB steps and one larger step of about 30 dB in the LNA. According to the system specification the received signal level must be measured accurately in the range of -48...-110 dBm. Above -48 dBm the phone can report a constant reading to the base station. Production calibration is done with one RF-level.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation WCDMA RF WCDMA RF Characteristics Table 7: WCDMA System Characteristics Item Receive frequency range Transmit frequency range Duplex spacing Channel spacing Number of RF channels Power class Value (WCDMA) 2110…2170MHz 1950…1980 MHz 190MHz 5MHz 277 4 (21dBm) Table 8: TX Main Characteristics Item Transmitter frequency range TX VCO freq.
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI Table 9: RX main characteristics Item Value NF (max gain) IQ level (differential) 9.0 dB (max) 400 mVppms (nominal) BB 3 dB bandwidth 10 kHz … 2 MHz (tunable) WCDMA FUNCTIONAL DESCRIPTION WCDMA synthesizers TEX and REX have there own synthesizers. The PLL designs are basically the same and are copied from HELGO. The loop filters are optimized separately so that the RX synthesizer is faster than the TX. The 19.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation WCDMA transmitter isolator Duplexer (TX) VBATREG1 power detector VBAT TxPwrDet VBAT VBATT_RF PA SMPS PA Ext reg 2 GenIO13 TXpwr PApwr GenIO15 TXC IPA1 HEX GSM TX I/Q TXA2 TEX U/I I/Q modulator MUX I/U MUX I/U 2 TXI_P TXI_N TXQ_P TXQ_N PLL TXA1 Balun VBAT VBATREG1 Ext reg 1 TXVCO GenIO 14 TXVCOpwr Figure 7: WCDMA TX block diagram Page 7-42 Copyright 2003 Nokia Corporation Company Confidential Iss
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI The differential IQ signals from TIKU to TEX are in current mode. Before any processing can be done they are converted to voltage mode by a current to voltage (I/V) converter . Analog BB filtering (WCDMA and GSM) is then applied in TEX. The MUX (multiplexer) switches the IQ signals to either WCDMA or GSM signal paths depending on which mode is selected. After modulation the WCDMA signal is amplified by the AGC stage in TEX.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation gain curve for both AGCs covering the entire dynamic range. This ensures that when the TX power level is changed both AGCs are adjusted simultaneously. WCDMA receiver TX signal Duplexer REX IQ demodulator ANT signal WRXI_P Balun WRXI_N WRXQ_P WRXQ_N 2 PLL Balun RXVCO Figure 8: WCDMA RX block diagram The receiver is based on direct conversion architecture.
Company Confidential CCS Technical Documentation NMM-3 7 - System Module & UI After the SAW filter the signal is fed back to REX to the demodulator. After the preamplifier stage there are demodulator mixers which convert the RF signal to analog baseband I- and Q-signals. The LO signal for the mixers is generated by the external RX VCO at twice the RF frequency. The frequency division and 90 deg phase shift is made in REX. I- and Q-signals are then amplified and filtered by the BB stage.
NMM-3 7 - System Module & UI Company Confidential CCS Technical Documentation This page has been delibrately left blank Page 7-46 Copyright 2003 Nokia Corporation Company Confidential Issue 1 (11/2003)
