Nokia 3200 Service Manual 07 rh30 sysmod

Nokia Customer Care

RH-30/RH-31 Series Cellular Phones

System Module and User

Interface

Company Confidential

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Table of Contents

Page No

Glossary of Terms ....................................................................................................................................4

Introduction ..............................................................................................................................................7

Electrical Modules ................................................................................................................................7

Interconnection Diagram ...................................................................................................................7

System Module: Baseband ....................................................................................................................8

Baseband Module, technical summary ..........................................................................................8

Environmental Specifications ...........................................................................................................9

Temperature Conditions ..................................................................................................................9

Humidity and Water Resistance ....................................................................................................9

Baseband Technical Specifications ................................................................................................10

Absolute Maximum Ratings .........................................................................................................10

DC Characteristics ...........................................................................................................................10

Power Distribution diagram .........................................................................................................12

Baseband External and Internal Signals and Connections .....................................................13

FM Radio Interface ..........................................................................................................................14

External Signals and Connections .................................................................................................18

Keyboard (board-to-board) Connector ......................................................................................18

LCD Connector (Board to Board) ....................................................................................................19

DC Connector ....................................................................................................................................20

Bottom Connector ...........................................................................................................................20

SIM connector ..................................................................................................................................22

Internal Signals and Connections ...............................................................................................23

Baseband Functional Description .....................................................................................................24

Modes of Operation ...........................................................................................................................24

No Supply ...........................................................................................................................................24

Back-up ..............................................................................................................................................24

Acting Dead .......................................................................................................................................24

Active ..................................................................................................................................................24

Sleep Mode ........................................................................................................................................25

Charging .............................................................................................................................................25

Battery ................................................................................................................................................25

Power Up and Reset ...........................................................................................................................26

Power Up with PWR key ................................................................................................................27

Power Up when Charger is connected ......................................................................................27

Power Up when Battery is connected .......................................................................................27

RTC Alarm Power Up .......................................................................................................................28

A/D Channels .......................................................................................................................................28

FM Radio ...............................................................................................................................................29

Camera.................................................................................................................................................. 30

IR Module ..........................................................................................................................................30

SIM Interface ....................................................................................................................................30

ACI .......................................................................................................................................................31

External Accessory Regulator ......................................................................................................32

External Audio .....................................................................................................................................32

External Microphone Connection ...............................................................................................3

External Earphone Connections ..................................................................................................33

Internal Audio ......................................................................................................................................34

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IHF Speaker & Stereo Audio Amplifier ......................................................................................34

Internal Microphone .......................................................................................................................34

Internal Speaker ...............................................................................................................................34

IHF Speaker & Stereo Audio Amplifier ......................................................................................35

Memory Block ......................................................................................................................................36

Security ...............................................................................................................................................36

Clock distribution ...............................................................................................................................36

Audio Control ....................................................................................................................................37

Accessory identification and Power Supply .............................................................................37

Backup Battery .................................................................................................................................38

RF Module Introduction ......................................................................................................................39

RF Frequency Plan ..............................................................................................................................40

DC characteristics ..............................................................................................................................41

Regulators ..........................................................................................................................................41

Typical current consumption ........................................................................................................42

Power Distribution ..........................................................................................................................43

RF characteristics ..................................................................................................................................44

Channel Numbers and Frequencies ............................................................................................44

Main RF characteristics .................................................................................................................44

Transmitter characteristics ...........................................................................................................46

Receiver characteristics .................................................................................................................46

RF Block Diagram ............................................................................................................................46

RF Block Diagram RH-30/RH-31 .................................................................................................47

Frequency Synthesizers .....................................................................................................................48

Receiver .................................................................................................................................................48

Transmitter ...........................................................................................................................................48

Front End ............................................................................................................................................48

Power Amplifier ...............................................................................................................................49

RF ASIC Helgo ...................................................................................................................................50

AFC function .....................................................................................................................................50

Antenna ......................................................................................................................

User interface modules .....................................................................................................................51

UI board 1bj ......................................................................................................................................51

Keyboard ............................................................................................................................................51

LCD .......................................................................................................................................................53

LCD & keypad illumination ...........................................................................................................53

Flashlight.............................................................................................................................................56

Internal earpiece ..............................................................................................................................57

IHF ........................................................................................................................................................57

Internal microphone .......................................................................................................................57

IR module ...........................................................................................................................................57

Vibra ....................................................................................................................................................58

Pop-Port system connector .............................................................................................................59

.......................50

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Glossary of Terms

ACI Accessory Control Interface

ADC Analog-Digital Converter

AFC Automatic Frequency Control

AGC Automatic Gain Contro

API Application Programming Interface

ARM Processor architecture

ASIC Application Specific Integrated Circuit

BB Baseband

CBus Control Bus connecting UPP_WD2 with AEM and UEM

CCS Customer Care Solutions

CMT Cellular Mobile Telephone (MCU and DSP)

COG Chip On Glass

CPU Central Processing Unit

CTSI Clocking Timing Sleep Interrupt

CSP Chip Scale Package

CSTN Colour Super Twisted Nematic

DAC Digital-Analog Converter

DAI Digital Audio Interface

DB Dual band

DCT4 Digital Core Technology, 4th generation

DCN Offset Cancellation control signal

DLL Dynamic Link Library

DRC Dynamic Range Controller

DSP Digital Signal Processor

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EFR Enhanced Full Rate

EGPRS Enhanced General Packet Radio Service

EMC Electromagnetic compatibility

EMI Electromagnetic Interference

ESD Electro Static Discharge

EXT RF External RF

FBUS Asynchronous Full Duplex Serial Bus

GPRS General Packet Radio Service

GSM Global System for Mobile communications

HS Half Rate Speech

HSCSD High Speed Circuit Switched Data

IC Integrated Circuit

IHF Integrated Hands Free

IMEI International Mobile Equipment Identity

I/O Input/Output

IRDA Infra Red Association

LCD Liquid Crystal Display

LDO Low Drop-Out

LED Light Emitting Diode

LNA Low Noise Amplifier

MBUS 1-wire half duplex serial bus

MCU Micro Controller Unit

MDI MCU-DSP Interface

MFI Modulator and Filter Interface

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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

PWM Pulse Width Modulation

RF Radio Frequency

RTC Real Time Clock

SIM Subscriber Identity Module

SW Software

UEM Universal Energy Management

UI User Interface

UPP Universal Phone Processor

VCXO Voltage Controlled Crystal Oscillator

VCTCXO Voltage Controlled Temperature Compensated Crystal Oscillator.

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Introduction

Electrical modules

The system module1bj consists of Radio Frequency (RF) and baseband (BB). User Interface (UI) contains display, keyboard, IR link, vibra, system connector and audio parts.

FM radio and camera module are located on the main PWB 1bj.

The electrical part of the keyboard is located in separate UI PWB named 1bk. 1bk is connected to radio module PWB through a spring connector.

The baseband blocks provide the MCU, DSP, external memory interface and digital control functions in the UPP ASIC. Power supply circuitry, charging, audio processing and RF control hard ware are in the UEM ASIC.

The purpose of the RF block is to receive and demodulate the radio frequency signal from the base station and to transmit a modulated RF signal to the base station.

The UI module is described in this section of the manual.

Interconnection diagram

Figure 1: Interconnection diagram

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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).

Figure 2: Baseband block diagram

Baseband is running from power rails 2.8V analog voltage and 1.8V I/O voltage. UPP core voltages can be lowered down to 1.0V, 1.3V and 1.5V. UEM includes 6 linear LDO (Low Drop-Out) regulator for baseband and 7 regulators for RF. It also includes 4 current sources for biasing purposes and internal usage. UEM also includes SIM interface which supports both 1.8V and 3V SIM cards.

Note: 5V SIM cards are no longer supported by DCT-4 generation baseband.

A real time clock function is integrated into the UEM. RTC utilizes the same 32kHz clock supply as the sleep clock. A backup power supply is provided for the RTC-battery, which keeps the real time clock running when the main battery is removed. The backup power supply is a rechargeable surface mounted Li-Ion battery. The backup time with the bat-

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tery is 30 minutes minimum.

The UEM ASIC handles the analog interface between the baseband and the RF section. 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 and the UPP is implemented using two serial busses, DBUS for DSP and CBUS for MCU. There are also separate signals for PDM coded audio. Digital speech processing is handled by the DSP inside UPP ASIC. UEM is a dual voltage circuit, the digital parts are running from the baseband supply 1.8V and the analog parts are running from the analog supply

2.78V. Also VBAT is directly used (Vibra, LED-driver, Audio amplifier).

The baseband supports both internal and external microphone inputs and speaker outputs. Input and output signal source selection and gain control is performed by the UEM according to control messages from the UPP. Keypad tones, DTMF, and other audio tones are generated and encoded by the UPP and transmitted to the UEM for decoding. An external vibra alert control signals are generated by the UEM with separate PWM outputs.

RH-30/RH-31 has a serial control interface: FBUS. FBUS can be accessed through a test pad and the System Connector as described later. EMC shielding is implemented using a metallized plastic frame. On the other side, the engine is shielded with PWB grounding.

Environmental specifications

Temperature conditions

Full functionality through ambient temperature range -10 oC to +55 oC.

Reduced functionality between -25

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.

C to -10 oC and +55 oC to +75 oC.

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Baseband technical specifications

Absolute maximum ratings

Signal Note

Battery Voltage (Idle) -0.3V - 5.5V

Battery Voltage (Call) Max 4.7V

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)

3.1V SW cut off

BB regulators

Signal Min. Nom Max Note

VANA 2.70V 2.78V 2.86V I

VFLASH1 2.70V 2.78V 2.86V I

VFLASH2 2.70V 2.78V 2.86V I

VSIM 1.745V

2.91V

VIO 1.72V 1.8V 1.88V I

VCORE 1.0V

1.235V

1.425V

1.710V

1.8V

3.0V

1.053V

1.3V

1.5V

1.8V

1.855V

3.09V

1.106V

1.365V

1.575V

1.890V

= 80mA

max

= 70mA

max

= 1.5mA

sleep

= 40mA

max

= 25mA

max

= 0.5mA

sleep

= 150mA

max

= 0.5mA

sleep

= 200mA

max

= 0.2mA

sleep

Default value 1.5V

Accessory regulator

Signal Min Nom Max Note

Vout 2.72V 2.80 2.88V I

max

= 70mA

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RF regulators

Signal Min Nom Max Note

VR1A 4.6V 4.75V 4.9V I

VR2 2.70V

3.20V

2.78V

3.3V

2.86V

3.40V

VR3 2.70V 2.78V 2.86V I

VR4 2.70V 2.78V 2.86V I

VR5 2.70V 2.78V 2.86V I

VR6 2.70V 2.78V 2.86V I

VR7 2.70V 2.78V 2.86V I

max

sleep

max

sleep

max

sleep

max

= 10mA

= 100mA

= 20mA

= 50mA

= 0.1mA

= 50mA

= 0.1mA

= 50mA

= 0.1mA

= 45mA

Current sources

Signal Min Nom Max Note

IPA1 and IPA2 0mA - 5mA Programmable, +/-6%

IPA1,VIPA1

= 0V - 2.7V

IPA3 and IPA4 50µA 100µA 105µA V

= 0V - 2.7V,

IPA1

UEM Internal

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Power distribution diagram

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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 covers a connector or a defined interface.

Figure 3: RF/BB connections block diagram

VR3

VBAT

IPA1 IPA2

VR1A

VR2 VR3 VR4 VR5 VR6 VR7

UEM

UPP

AFCOUT

AUXOUT

RXIINP

RXQINP

TXIOUTP

TXIOUTN

TXQOUTP

TXQOUTN

VrefRF01

PATEMP

GENIO5

GENIO6

GENIO7

RFCLK

RFBUSCLK

RFBUSDA

RFBUSEN1X

GENIO9

VCTCXO VCO

TXC

OUT_BB1_I

OUT_BB1_Q

TXI_0

TXI_180

TXQ_180

TXQ_0

VB_EXT

RFTEMP

TXP

RESET

TXA

REFOUT

SCLK

SDATA

SLE

MODE

MODOUTP_G_TX

MODOUTM_G_TX

MODOUTP_P_TX

MODOUTM_P_TX

Helgo

VCP

VRF_TX

VRF_RX

VF_RX

VLNA

VPAB

VLO

VPRE

VBB

850

900

Iref_850

Iref_1800_1900

VR7

VR1A VR2

VR4

VR5

VR6

VBAT IPA1 IPA2

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FM radio interface

BB Signal FM Radio Signal Min Nom Max Condition Note

VFLASH2 Vcca 2.7V 2.78V 2.86V I

Vcc(vco) 2.7V 2.78V 2.86V I

Vccd 2.7V 2.78V 2.86V I

GenIO(3) FMClk 1.4V

30ppm Stability

GenIO(8) FMWrEn 1.4V

GenIO(12) FMCtrlDa 1.4V

GenIO(11) FMCtrlClk 1.4V

FM Antenna RFI1, RFI2 76 MHz 108 MHz FM Input frequency

1.8V 1.88V

0.4V

32kHz Frequency Also 6.5 MHz can be

1.8V 1.88V

0.4V

1.8V 1.88V

0.6V

1.8V 1.88V

0.6V

1 MHz Frequency

High Low

=10.5 mA

max

=940 µA

max

= 3.9 mA

max

Reference clock for FM radio module

used

Write/Read enable

Bi-directional data

FM Radio L FM Radio R

VAFL VAFR

100mV Audio level

24 dB 30 dB Channel sep-

aration

54dB 60 dB (S+N)/N

2% Harmonic

distortion

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AC and DC characteristics of RF-baseband voltage supplies

Signal name

VBAT Battery PA, UEM Voltage 2.95 3.6 4.2 V Battery supply. Cut-off

VR1A UEM Helgo Voltage 4.6 4.75 4.9 V Supply for charge pump

VR2 UEM Helgo Voltage 2.70 2.78 2.86 V Supply for I/Q-modula-

VR3 UEM VCTCXO,

VR4 UEM Helgo Voltage 2.70 2.78 2.86 V Supply for Helgo RX; PA

VR5 UEM Helgo Voltage 2.70 2.78 2.86 V Supply for Helgo PLL;

From To Parameter Min Typ Max Unit Function

level of DCT4 regulators is

3.04V. Losses in PWB tracks and ferrites are taken account to minimum battery voltage level.

for SHF VCO tuning.

tors, buffers, ALS

digital parts

bias blocks.

dividers, LO- buffers, prescaler,

Helgo

Current 2000 mA

Current drawn by PA when ”off”

Current 2 10 mA

Current 65 100 mA

Voltage 2.70 2.78 2.86 V Supply for VCTCXO, PLL

Current 1 20 mA

Current 50 mA

0.8 2 µA

VR6 UEM Helgo Voltage 2.70 2.78 2.86 V Supply for Helgo BB and

Current 50 mA

VR7 UEM SHF VCO Voltage 2.70 2.78 2.86 V Supply for SHF VCO

Current 30 mA

VrefRF01 UEM Helgo Voltage 1.334 1.35 1.366 V Voltage Reference for

Current 100 µA

LNAs

Helgo DCN2 op.amps.

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AC and DC characteristics of RF-baseband digital signals

Signal name From To Parameter Input Characteristics Function

Min Typ Max Unit

TXP (RFGenOut3)

TXA UPP Helgo ”1” 1.38 1.88 V Power con-

RFBusEna1X UPP Helgo ”1” 1.38 1.88 V RFbus enable

UPP Helgo ”1” 1.38 1.88 V Power

”0” 0 0.4 V

Load Resistance 10 220 kΩ

Load Capacitance 20 pF

Timing Accuracy 1/4 symbol

”0” 0 0.4 V

Load Resistance 10 220 kΩ

Load Capacitance 20 pF

Timing Accuracy 1/4 symbol

”0” 0 0.4 V

Current 50 µA

Load resistance 10 220 kΩ

Load capacitance 20 pF

amplifier enable

trol loop enable

RFBusData UPP Helgo ”1” 1.38 1.88 V RFbus data;

”0” 0 0.4 V

Load resistance 10 220 kΩ

Load capacitance 20 pF

Data frequency 10 MHz

RFBusClk UPP Helgo ”1” 1.38 1.88 V RFBus clock

”0” 0 0.4 V

Load resistance 10 220 kΩ

Load capacitance 20 pF

Data frequency 10 MHz

Mode Select (GENIO9)

UPP Helgo ”1” 1.38 1.85 V Mode Selec-

”0” 0 0.4 V

read/write

tion

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RESET (GENIO6)

UPP Helgo ”1” 1.38 1.85 V Reset to

”0” 0 0.4 V

Load capacitance 20 pF

Load resistance 10 220 kΩ

Timing accuracy 1/4 symbol

Helgo

AC and DC characteristics of RF-baseband analogue signals

Signal name From To Parameter Min Typ Max Unit Function

VCTCXO VCTCXO UPP Frequency 13 26 MHz High stability clock

Signal amplitude 0.2 0.8 2.0 Vpp

Input Impedance 10 kΩ

Input Capacitance 10 pF

Duty Cycle 40 60 %

VCTCXOGnd VCTCXO UPP DC Level 0 V Ground for refer-

signal for the logic circuits, AC coupled. Distorted sinewave e.g. sawtooth.

ence clock

RXI/RXQ Helgo UEM Voltage swing

(static)

DC level 1.3 1.35 1.4 V

TXIP / TXIN UEM Helgo Differential voltage

swing (static)

DC level 1.17 1.20 1.23 V

Source Impedance 200 W

TXQP / TXQN UEM Helgo Same spec as for TXIP / TXIN

AFC UEM VCTCXO Voltage Min

Max

Resolution 11 bits

Load resistance and capacitance

Source Impedance 200 W

TxC UEM Helgo Voltage Min

Max 2.4

Source Impedance 200 W

1.35 1.4 1.45 Vpp Received demodu-

2.15 2.2 2.25 Vpp Programmable volt-

0.0

2.4

lated IQ signals

age swing. Programmable common mode voltage. Between TXIP-TXIN

0.1

2.6

100

0.1 V Transmitter power

VAutomatic fre-

quency control signal for VCTCXO

kΩ nF

level and ramping control

Resolution 10 bits

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RFTemp Helgo UEM Voltage at -20oC 1,57 V Temperature sensor

Voltage at +25oC 1,7

Voltage at +60oC 1,79

IPA1 / IPA2 UEM PA Output Voltage 0 2.7 V PA final stage quies-

Current range 0 5 mA

of RF.

cent current adjustment

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