External Signals and Connections

This section lists and specifies all the electrical connections from the Baseband part of the transceiver, i.e. either to the outside world (Bottom- , SIM card- and battery connector) , or to items in the mechanical assembly that has electrical interface (LCD, Vibra, speaker and microphone). Figure 1. SIM connector, X100 and Battery terminals, X101 & X102, pin locations

Imokia

Customer Care Europe & Africa Technical Services Training Group IMOKIA CONFIDENTIAL 13 (48) Customer Care Europe & Africa Version 5.0 Approved Technical Services Training Group Date 05.09.2001 C145 100pF (2320560) C320 10nF (2320620) C149 2.2pF (2320915) N100 CCONT 2IH (4370393) C149 2.2pF (2320915) N100 CCONT 2I (4370467) R508 47Q (1430718) R319 680KQ (1430826) Improvements in RF PCN (R508) Changed interrupt level for CARDDETX in BB (R319) L103 changed, which improves 600 KHz modulation...

Power Down Schemes

There are four ways to power down the phone 1. by pressing power on off button, 2. by letting the CCONT watchdog expire, 3. by letting the battery voltage drop below the operation limit (either by not charging the battery or by removing it) 4. by removing the charger (in POWER ON ACTING DEAD state only). Power button initiated power down procedure 0. INITIAL CONDITIONS ANY OPERATIONAL STATE 1. POWER BUTTON PRESSED (FOR POWER OFF) 1.1 MCU SW detects that power button is pressed long enough to...

Charger Initiated Power Up Procedure

- all components except DC DC converter and CCONT RTC powered off 1.1 The PSCC starts charging the battery with initial current. When the battery voltage reaches the switcher startup voltage level, the switcher will start up and supply the CCONT 1, which identifies the charger presence (vCHAr) 1.2 CCONT waits until Vdc_out exceeds 3.0 V 2 1.3 CCONT powers on its digital logic and sets the PWM output to100 1.4 CCONT releases the reset of its digital logic after 50 us setup time 2. CCONT RELEASES...

Technical Information

HD947 is a DCT3.5 based product, i.e. a dual band GSM 900 & DCS1800, single board concept using the serial version of the MAD2PR1-and COBBA_GJP chip set. HD947 is based on HD945 (PICA) HW with significant modifications in the Baseband as listed below - HD947 uses a two cell semi fixed NiMH battery-pack only, giving 2.4V nominal supply voltage. Thus the usual NMP battery interface is modified. - A special charge control ASIC, PSCC, is used for two cell NiMH charging instead of CHAPS...

Deep Sleep Mode

In the sleep mode all the regulators except, Vcobba, Vref, VBB, (Vcore when MAD2PR1 in C07 is used) and the SIM card VSIM regulators are off. Sleep mode is activated by the MAD2PR1 after MCU and DSP clocks have been switched off. The voltage regulators for the RF section are switched off and the VCXO power control, VCXOPwr is set low. In this state only the 32 kHz sleep clock oscillator in CCONT is running. The flash memory power down input is connected to the VCXO power control, so that the...

MADPR contains following building blocks

- ARM RISC processor with both 16-bit instruction set (THUMB mode) and 32-bit instruction set (ARM mode) - TMS320C542 DSP core with peripheral - API (Arm Port Interface memory) for MCU-DSP communication, DSP code down load, MCU interrupt handling vectors (in DSP RAM) and DSP booting - Serial port (connection to PCM) - BUSC (BusController for controlling accesses from ARM to API, System Logic and MCU external memories, both 8- and 16-bit memories) - CTSI (Clock, Timing, Sleep and Interrupt...

Charging

Nokia 3210 Charger Specification

At the phone end there is no difference between a plug-in charger or a desktop charger. The DC-jack pins and bottom connector charging pads are connected together inside the phone. The PSCC is the charging control ASIC, basically a CHAPS known from DCT3 but modified for operation on lower supply level and reduced for 2 cell NiMH battery only. The ASIC has the following main functions - controlled low drop power switch - input transient voltage protection - output over voltage protection...

Technical Summary

The Baseband architecture is basically similar to DCT3 GSM phones. HD947 differs from DCT3 in the single pcb concept and the serial interface between MAD2PR1 and COBBA_GJP and between MAD2PR1 and CCONT. In HD947 the MCU, the system specific ASIC and the DSP are integrated into one ASIC, called the MAD2PR1 chip, which takes care of all the signal processing and operation controlling tasks of the phone. The Baseband architecture supports a power saving function called sleep mode. This sleep mode...

Technical Documentation

Audio Block connections (continued) Table 13. Audio Block connections (continued) Negative line of the in phase transmit signal Positive line of the in phase transmit signal Negative line of the quadrature phase transmit signal Positive line of the quadrature phase transmit signal Positive line of the in phase receive signal Negative line of the in phase receive signal Logical signal controlling the keyboard backlight driver. Logical signal controlling the LCD backlight driver. 32KHz...

Power Supply

The DC DC converter is the only unit which draws current from the 2 cell NiMH battery pack. The battery voltage, Vb, is up converted through the DC DC converter to an output voltage level, Vdc_out, which is dependent on the phone state (operating mode) and in call mode depending upon which band and on what power level the phone is transmitting at. The DC DC converter feeds power directly to four parts of the system the CCONT, the power amplifier, the UI (buzzer, Vibra, display- and keyboard-...

Earphone down link audio

The internal down link audio circuitry consists of basically 3 blocks Which converts the PCM bitstream from the speech processor in the DSP to analog signals which are feed to the earpiece. Which converts the voltage variations to air pressure variations sound . The low impedance 32 ohm , dynamic type internal earphone is connected to the PCB by means of mounting springs for automatic assembly. L202 and L203 prevents the RF radiated by the antenna from getting demodulated in by the earpiece in...

Electrical Specifications

Lna Nokia Gsm Phone

935.2 959.8 MHz GSM 1805.2 1879.8 MHz DCS1800 890.2 914.8 MHz GSM 1710.2 1784.8 MHz DCS1800 5 33 dBm 3.2 mW 2 W GSM 0 30 dBm 1 mW 1 W DCS1800 -102 dBm BER lt 2.439 GSM -100 dBm BER lt 2.439 DCS1800 DET BAND_SEL PA_GSM PA_PCN LNA.GSM VRX_1 LNA.PCN VTX CHARGE.GND r T IMICN 2S_ IMICP 38-INT XEARP XMICN XEARN XMICP CHARG-CTRL CHARGE.GND V_CHARGE_IN CHARG-CTRL VRX_ VRX_2 VSYN_2 VXO VTX VCP VREF VDC_OUT RF-TEMP AFC RXC TXC TXIN TXIP TXQN TXQP RXINP RXINN KEY-LIGHT COBBACLK LCD_LIGHT COBBARESET -C gt...

Microphone uplink audio

The internal uplink audio circuitry consists of basically 5 blocks Which converts air pressure variations to current variations. The internal microphone is placed in a well in the bottom connector part, it's connected to the bottom connector by means of mounting springs for automatic assembly. 2. The microphone bias circuitry MBIAS from Cobba generates a 2.1V dc suppply, which is filtered by R214 and C220 for better TDMA suppression. R215 and R216 converts the current variations created by the...

FLASH Memory

The MCU program code resides in the program memory. The program memory size is 16 Mbits 1024kx16bit in the uBGA48 -package. The flash memory has a power down pin that is kept low,by ESysResetX, during the power up phase of the flash to ensure that the device is powered up in the correct state, read only. The power down pin is utilized in the system sleep mode by connecting the ExtSysResetX to the flash power down pin to minimize the flash power consumption during the sleep. MAD2PR1 interfaces...

Contents

New PCB GD7 component amp vendor changes -Z700 71MHz filter - New ceramic package -Different CCONT N100 versions implemented -Does not switch on with battery also with service battery -Flash D301 SRAM D302 related faults -Phone does not switch on SectionDC DC converter -Phone does not switch on Section CCONT -Phone does not switch on Flash update not possible -Charging problems with ACP - 8 9 charger IMOKIA CONFIDENTIAL 5 48 Customer Care Europe amp Africa Version 5.0 Approved Technical...