Nokia 8310 Service manual

Programs After Market Services (PAMS)

Technical Documentation

S

U

NMP Part No.0275518

NHM±7

SERIES CELLULAR

PHONES

NHM±7 issue 1: 10/2001

Copyright 2001. Nokia Corporation. All Rights Reserved.

NHM±7	PAMS Technical Documentation
Foreword

AMENDMENT RECORD SHEET

Amendment		Date	Inserted By	Comments
		10/2001	J. Rantala	Issue 1

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Nokia Corporation.

Issue 1 10/2001

					NHM±7
PAMS Technical Documentation					Foreword

NHM±7

SERIES CELLULAR PHONES

SERVICE MANUAL

CONTENTS:

1.Foreword

2.General Information

3.System & UI Module LA5/LK5

4.Part lists

5.Product Variants NHM±7

6.Service Software & Concepts

7.Service Tools

8.Disassembly Instructions

9.Troubleshooting Instructions

10.Non±serviceable Accessories

11.Schematic Diagrams

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Nokia Corporation.

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NHM±7	PAMS Technical Documentation
Foreword

IMPORTANT

This document is intended for use by qualified service personnel only.

Company Policy

Our policy is of continuous development; details of all technical modifications will be included with service bulletins.

While every endeavour has been made to ensure the accuracy of this document, some errors may exist. If any errors are found by the reader, NOKIA Corporation should be notified in writing.

Please state:

Title of the Document + Issue Number/Date of publication

Latest Amendment Number (if applicable)

Page(s) and/or Figure(s) in error

Please send to:	Nokia Corporation
	NMP
	PAMS Technical Documentation
	PO Box 86
	24101 SALO
	Finland

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Nokia Corporation.

Issue 1 10/2001

					NHM±7
PAMS Technical Documentation					Foreword

Warnings and Cautions

Please refer to the phone's user guide for instructions relating to operation, care and maintenance including important safety information. Note also the following:

Warnings:

1.CARE MUST BE TAKEN ON INSTALLATION IN VEHICLES FITTED WITH ELECTRONIC ENGINE MANAGEMENT

SYSTEMS AND ANTI±SKID BRAKING SYSTEMS. UNDER

CERTAIN FAULT CONDITIONS, EMITTED RF ENERGY CAN AFFECT THEIR OPERATION. IF NECESSARY, CONSULT THE VEHICLE DEALER/MANUFACTURER TO DETERMINE THE

IMMUNITY OF VEHICLE ELECTRONIC SYSTEMS TO RF

ENERGY.

2.THE HANDPORTABLE TELEPHONE MUST NOT BE OPERATED

IN AREAS LIKELY TO CONTAIN POTENTIALLY EXPLOSIVE

ATMOSPHERES EG PETROL STATIONS (SERVICE STATIONS), BLASTING AREAS ETC.

3.OPERATION OF ANY RADIO TRANSMITTING EQUIPMENT,

INCLUDING CELLULAR TELEPHONES, MAY INTERFERE WITH

THE FUNCTIONALITY OF INADEQUATELY PROTECTED

MEDICAL DEVICES. CONSULT A PHYSICIAN OR THE

MANUFACTURER OF THE MEDICAL DEVICE IF YOU HAVE

ANY QUESTIONS. OTHER ELECTRONIC EQUIPMENT MAY

ALSO BE SUBJECT TO INTERFERENCE.

Cautions:

1.Servicing and alignment must be undertaken by qualified personnel only.

2.Ensure all work is carried out at an anti±static workstation and that an anti±static wrist strap is worn.

3.Ensure solder, wire, or foreign matter does not enter the telephone as damage may result.

4.Use only approved components as specified in the parts list.

5.Ensure all components, modules screws and insulators are correctly re±fitted after servicing and alignment. Ensure all cables and wires are repositioned correctly.

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Foreword

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Issue 1 10/2001

PAMS Technical Documentation

NHM±7 Series Transceivers

General Information

Issue 1 10/2001

Nokia Corporation

NHM±7
General Information	PAMS Technical Documentation
CONTENTS
The Product . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . 3
Handportable . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . 3
Desktop Option . . . . . . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . 4
Product and Module List . . . . . . . . . . . . . . . . . . . . . .	. . . . . . . . . . . 5
General Specifications of Transceiver NHM±7 . . .	. . . . . . . . . . . 6

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					NHM±7
PAMS Technical Documentation					General Information

The Product

The NHM±7 is a dual band handportable mobile telephone for the E±GSM 900 and GSM1800 networks. It is both GSM900 phase 2 power class 4 transceiver (2W) and GSM1800 power class 1 (1W) transceiver.

The main transceiver features are:

± Integrated FM radio	± Full graphic display
± GPRS	± Integrated IR link & internal data
± Internal vibra	± Plug & play HF support

±Plug±in SIM card below the back cover of the phone

±Back mounted antenna (no connection for external antenna)

±Jack style UI with two soft keys

Handportable

2.

1.

HDD±1

NHM±7

4.

ACP±7C

ACP±7U

5.

ACP±7H

ACP±7X

			6.
			ACP±7A
Item Name:			Type code:	Material code:
1.	Transceiver		See Product Variants
	Standard battery Li±ion		BLB±2	0271570
2.	Headset		HDD±1	0273302
3.	Standard Charger (Euro plug) 207±253 Vac		ACP±7E	0675144
4.	Standard Charger (US plug) 108±132 Vac		ACP±7U	0675143
	Standard Charger (US plug) 198±242 Vac		ACP±7C	0675158
5.	Standard Charger (UK plug) 207±253 Vac		ACP±7X	0675145
	Standard Charger (UK plug) 180±220 Vac		ACP±7H	0675146
6.	Standard Charger (Australia) 216±264 Vac		ACP±7A	0675148
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NHM±7
General Information	PAMS Technical Documentation

Desktop Option

The desktop option allows the user to charge the phone from the mains.

Besides these optional chargers also ACP±7 can be used.

1. NHM±7

3.ACP±8E

ACP±8K

4. ACP±8X

5. ACP±8U ACP±8C

2. DCD±1

6. ACP±8A

Item Name:

Type code:

Material code:

1.Transceiver

2.Desk Stand

3.Travel Charger

Travel Charger

4.Travel Charger

5.Travel Charger Travel Charger

6.Travel Charger

Euro plug 90±264 Vac Korea plug 90±264 Vac UK plug 90±264 Vac

US plug 90±264 Vac China plug 90±264 Vac

Australia plug 90±264 Vac

See Product Variants

DCD±1 0272865 ACP±8E 0272169 ACP±8K 0273111 ACP±8X 0272172 ACP±8U 0675196 ACP±8C 0675211 ACP±8A 0271637

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						NHM±7
PAMS Technical Documentation						General Information
Product and Module List
			Unit/type:			Product code:
			NHM±7 Transceiver			See Product Vari-
						ants
			BLB±2 Standard Battery Li±ion			0271570
			ACP±7E Standard Charger (EUR) 207±253 Vac			0675144
			ACP±7U Standard Charger (US) 108±132 Vac			0675143
			ACP±7C Standard Charger (US) 198±242 Vac			0675158
			ACP±7X Standard Charger (UK) 207±253 Vac			0675145
			ACP±7H Standard Charger (UK) 180±220 Vac			0675146
			ACP±7A Standard Charger (AUS) 216±264 Vac			0675148
			ACP±8E Travel Charger (EUR) 90±264 Vac			0272169
			ACP±8K Travel Charger (Korea) 90±264 Vac			0273111
			ACP±8X Travel Charger (UK) 90±264 Vac			0272172
			ACP±8U Travel Charger (US) 90±264 Vac			0675196
			ACP±8C Travel Charger (China) 90±264 Vac			0675211
			ACP±8A Travel Charger (Australia) 90±264 Vac			0271637
			LCH±9 Mobile Charger			0675120
			PPH±1 Plug±in HF Car Kit			0272170
			MBD±10 Mobile Holder			0272866 Eur/Afr
						0273412 APAC
			MKU±1 Mounting Plate			0620036
			HHS±9 Swivel Mount			0620037
			DCD±1 Desktop Stand			0272865
			DDC±1 Battery Charging Stand			0272418
			HFM±8 HF Microphone			0271503
			HDD±1 Headset			0273302
			HDC±5 Headset			0271467
			HDE±2 Headset			0694075
			LPS±3 Loopset			0272419

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NHM±7
General Information				PAMS Technical Documentation
	General Specifications of Transceiver NHM±7
	Parameter			Unit
	Cellular system	GSM900 and GSM1800
	RX frequency band	EGSM:	925 ... 935 MHz
		GSM900	935 ... 960 MHz
		GSM1800	1805 ... 1880 MHz
	TX frequency band	EGSM	880 ... 890 MHz
		GSM900	890 ... 915 MHz
		GSM1800	1710 ... 1785 MHz
	Output power	GSM900 *	+5 ...+33 dBm / 3.2 mW ... 2 W
		GSM1800	+0 ...+30 dBm / 1.0 mW ... 1 W
	Duplex spacing	GSM900 *	45 MHz GSM1800 95 MHz
	Number of RF channels	EGSM	50
		GSM900	124
		GSM1800	374
	Channel spacing	200 kHz
	Number of TX power levels	GSM900 *	15	GSM1800 16
	Sensitivity, static channel	GSM900:	±102 dBm
		GSM1800:	±102 dBm (norm. cond. only)
	Frequency error, static channel	< 0.1 ppm
	RMS phase error	< 5.0 o
	Peak phase error	< 20.0 o

*) applies also to EGSM

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Nokia Corporation

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PAMS Technical Documentation

NHM±7 Series Transceivers

System Module & UI

Issue 1 10/2001

Nokia Corporation

NHM±7
System Module & UI	PAMS Technical Documentation
CONTENTS
Transceiver NHM±7 .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
Introduction . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	6
Electrical Modules . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		6
Operation Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
Interconnection Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		7
System Module . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Baseband Module .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Block Diagram . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	8
Technical Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		9
DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		10
Regulators and Supply Voltage Ranges . . . . . . . . . . . . .		10
External and Internal Signals and Connections . . . . . . . . .		11
Internal Signals and Connections . . . . . . . . . . . . . . . . . . . . .		11
FM Radio Interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		11
Internal microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		12
Internal speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		12
AC and DC Characteristics of RF±BB voltage supplies		13
AC and DC Characteristics of RF±BB digital signals . .		14
AC and DC Characteristics of RF±BB analogue signals		15
External Signals and Connections . . . . . . . . . . . . . . . . . . . .		16
UI (board±to±board) connector . . . . . . . . . . . . . . . . . . . .		16
LCD connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		17
DC connector	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	18
Headset connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		18
SIM connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		19
Functional Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		20
Modes of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		20
Supply Voltage Regulation . . . . . . . . . . . . . . . . . . . . . . . . . .		21
Battery . . . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	22
Power Up and Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		22
A/D Channels . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	23
FM Radio . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	24
IR Module . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	25
Backup Battery .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	25
SIM Interface . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	25
Buzzer . . . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	26
Internal Microphone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		26
UPP . . . . . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
Memory Block . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	27
RF Module . . . . . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	29
RF Frequency Plan . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		29
DC characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .		30
Regulators . . .	. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	30
Power Distribution Diagram . . . . . . . . . . . . . . . . . . . . . . . . . .		31
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PAMS Technical Documentation	System Module & UI
RF characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 32
Transmitter characteristics . . . . . . . . . . . . . . . . . . . . . . .	. 32
Receiver characteristics . . . . . . . . . . . . . . . . . . . . . . . . .	. 32
RF Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 33
Frequency synthesizers . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 34
Receiver . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 35
Transmitter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 36
AFC function . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 36
DC±compensation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 37
UI Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 38
LCD & Keypad Illumination . . . . . . . . . . . . . . . . . . . . . . . . .	. 38
Internal Speaker . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .	. 39

Schematic Diagrams (at the back of the binder): LA5 layout 15 and LK5 layout 11 (covers layout version 10)

RF & BB (Version 0.0 Edit 61) for layout version 15 . . . . . . . .	A±1
RF (Version 1.0 Edit 167) for layout version 15 . . . . . . . . . . . .	A±2
BB Connections (Version 0.0 Edit 96) for layout version 15 . .	A±3
System Connector (Version 1.3 Edit 156) for layout version 15	A±4
Audio Interface (Version 1.3 Edit 15) for layout version 15 . . .	A±5
UEM of BB (Version 2.0 Edit 164) for layout version 15 . . . . . .	A±6
Light Filtering (Version 2.0 Edit 34) for layout version 15 . . . .	A±7

Display and Keyboard Interface (Version 1.3 Edit 201) for layout version 15 A±8

Infrared Module (Version 2.0 Edit 37) for layout version 15 . .	A±9
FM Radio (Version 1.3 Edit 104) for layout version 15 . . . . . .	A±10
SIM Reader (Version 4.0.1 Edit 49) for layout version 15 . . . .	A±11

UPP and decoupling capacitors (Version 2.0 Edit 89) for layout version 15A±12

AMD (Version 2.0 Edit 31) for layout version 15 . . . . . . . . . . . .	A±13
Layout Diagram of LA5 ± Top (Version 15) . . . . . . . . . . . . . . . . .	A±14
Layout Diagram of LA5 ± Bottom (Version 15) . . . . . . . . . . . . . .	A±14
Testpoints of LA5 ± Top (Version 15) . . . . . . . . . . . . . . . . . . . . . .	A±15
Testpoints of LA5 ± Bottom (Version 15) . . . . . . . . . . . . . . . . . . .	A±15
UI Board ± LK5 for version 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .	A±16
Layout Diagram ± LK5 for version 11 . . . . . . . . . . . . . . . . . . . . . .	A±17

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NHM±7
System Module & UI	PAMS Technical Documentation

Schematic Diagrams (at the back of the binder): LA5 layout 17 and LK5 layout 11 (covers layout version 10)

RF & BB (Version 0.0 Edit 65) for layout version 17 . . . . . . . .	B±1
RF (Version 1.0 Edit 180) for layout version 17 . . . . . . . . . . . .	B±2
BB Connections (Version 0.0 Edit 113) for layout version 17 .	B±3
System Connector (Version 1.3 Edit 162) for layout version 17	B±4
Audio Interface (Version 1.3 Edit 80) for layout version 17 . . .	B±5
UEM of BB (Version 2.0 Edit 168) for layout version 17 . . . . . .	B±6
Light Filtering (Version 2.0 Edit 34) for layout version 17 . . . .	B±7

Display and Keyboard Interface (Version 1.3 Edit 210) for layout version 17 B±8

Infrared Module (Version 2.0 Edit 38) for layout version 17 . .	B±9
FM Radio (Version 1.3 Edit 110) for layout version 17 . . . . . . .	B±10
SIM Reader (Version 1.3 Edit 48) for layout version 17 . . . . . .	B±11

UPP and decoupling capacitors (Version 2.0 Edit 91) for layout version 17B±12

GSM RF ± BB Interface (Version 1.3 Edit 35) for layout version 17	B±13
Flash Memory (Version 2.0 Edit 32) for layout version 17 . . . .	B±14
Layout Diagram of LA5 ± Top (Version 17) . . . . . . . . . . . . . . . . .	B±15
Layout Diagram of LA5 ± Bottom (Version 17) . . . . . . . . . . . . . .	B±15
Testpoints of LA5 ± Top (Version xx) . . . . . . . . . . . . . . . . . . . . . . .	B±16
Testpoints of LA5 ± Bottom (Version 17) . . . . . . . . . . . . . . . . . . .	B±16
UI Board ± LK5 for version 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . .	B±17
Layout Diagram ± LK5 for version 11 . . . . . . . . . . . . . . . . . . . . . .	B±18

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PAMS Technical Documentation					System Module & UI

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NHM±7
System Module & UI	PAMS Technical Documentation

Transceiver NHM±7

Introduction

The NHM±7 is a dual band radio transceiver unit for the E±GSM900 and GSM1800 networks. GSM power class is 4 and GSM1800 power class is 1. It is a true 3 V transceiver, with an internal antenna and vibra.

The NHM±7 phone includes integrated FM radio. Radio is used as a normal mono receiver. FM radio is highly integrated. Only few external components are needed. Headset is used as an antenna for radio.

The transceiver has a full graphic display and the user interface is based on a Jack style UI with two soft keys.

An internal antenna is used, there is no connection to an external antenna.

The transceiver has a low leakage tolerant earpiece and an omnidirectional microphone, providing an excellent audio quality. The transceiver supports a full rate, an enhanced full rate and a half rate speech decoding.

An integrated IR link provides a connection between two NHM±7 transceivers or a transceiver and a PC (internal data), or a transceiver and a printer.

The small SIM ( Subscriber Identity Module ) card is located under the battery. SIM interface supports both 1.8V and 3V SIM cards.

Electrical Modules

The radio module consists of Radio Frequency (RF) and baseband (BB).

User Interface (UI) contains display, keyboard, IR link, vibra, HF/HS connector and audio parts. UI is divided into radio PWB LA5 and UI PWB

LK5. FM radio is located on the main PWB.

The electrical part of the keyboard is located in separate UI PWB named

LK5. LK5 is connected to radio PWB through spring connectors.

The System blocks provide the MCU, DSP, external memory interface and digital control functions in UPP ASIC (Universal Phone Processor).

Power supply circuitry, charging, audio processing and RF control hardware are in UEM ASIC (Universal Energy Management).

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.

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					NHM±7
PAMS Technical Documentation					System Module & UI

Operation Modes

The transceiver has six different operation modes:

± power off mode	± idle mode
± active mode	± charge mode
± local mode	± test mode

In the power off mode circuits are powered down and only sleep clock is running.

In the idle mode only the circuits needed for power up are supplied.

In the active mode all the circuits are supplied with power although some parts might be in the idle state part of the time.

The charge mode is effective in parallel with all previous modes. The charge mode itself consists of two different states, i.e. the fast charge and the maintenance mode.

The local and test modes are used for alignment and testing.

Interconnection Diagram

Keyboard Display module

SIM

Radio

Battery

Module

Charger

Antenna

LA5

MIC

IR Link

Earpiece

HF

+

FM antenna

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NHM±7
System Module & UI	PAMS Technical Documentation

System Module LA5

Baseband Module

The baseband architecture supports a power saving function called ºsleep modeº. This sleep mode shuts off the VCTCXO, which is used as system clock source for both RF and baseband. During the sleep mode the system runs from a 32 kHz crystal. The phone is waken up by a timer running from this 32 kHz clock supply. The sleep time is determined by network parameters. Sleep mode is entered when both the MCU and the DSP are in standby mode and the normal VCTCXO clock is switched off.

NHM±7 supports both three and two wire type of Nokia chargers. Three wire chargers are treated like two wire ones. There is not separate PWM output for controlling charger but it is connected to GND inside the bottom connector. Charging is controlled by UEM ASIC (Universal Energy Management) and EM SW running in the UPP (Universal Phone Processor).

BLB±2 Li±ion battery is used as main power source for the phone.

Block Diagram

PWR

IR

FM

radio

UI

TX/RX SIGNALS	RF SUPPLIES					PA SUPPLY	13MHz	SYSTEM CLOCK
							CLK

	UEM		SIM
	Digital Control		32kHz
			CLK
		BB SUPPLIES	SLEEP CLOCK
	UPP	RAM
			VBAT
			BATTERY
	FLASH MEMORY
	BASEBAND	EXT. AUDIO
	HS±connector		Charger
			connector

UPP ASIC (Universal Phone Processor) provides the MCU, DSP, external memory interface and digital control functions. UEM ASIC (Universal Energy Management) contains power supply circuitry, charging, audio processing and RF control hardware.

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PAMS Technical Documentation					System Module & UI

Technical Summary

Baseband is running from power rails 2.8V analog voltage and 1.8V I/O voltage. UPP core voltage Vcore can be lowered down to 1.0V, 1.3V and

1.5V. UEM includes 6 linear LDO (low drop±out) regulators 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 has supports both 1.8V and 3V SIM cards.

Note: 5V SIM cards are no longer supported by NHM±7 baseband.

A real time clock function is integrated into the UEM which utilizes the same 32kHz clock supply as the sleep clock. A backup power supply is provided for the RTC which keeps the real time clock running when the main battery is removed. The backup power supply is a rechargeable surface mounted capacitor. The backup time with the capacitor is 30 minutes minimum.

The analog interface between the baseband and the RF section is handled by a UEM ASIC. 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. RF ASIC, Hagar, is controlled through UPP RFBUS serial interface. There is 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 by some blocks.

The baseband supports both internal and external microphone inputs and speaker outputs. UEM also includes third microphone input which is used in NHM±7 for FM radio. Input and output signal source selection and gain control is done 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. A buzzer and external vibra alert control signals are generated by the UEM with separate PWM outputs.

NHM±7 has two external serial control interfaces: FBUS and MBUS. These busses can be accessed only through production test pattern.

EMC shielding for baseband is implemented using a metallized plastic frame and UI PWB ground plane. On the other side the engine is shielded with PWB grounding. Heat generated by the circuitry will be conducted out via the PWB ground planes.

NHM±7 radio module is implemented to 8 layer PWB. UI module is divided between main PWB LA5 and separate UI PWB LK5.

Issue 1 10/2001

Nokia Corporation

Page 9

NHM±7
System Module & UI				PAMS Technical Documentation
	DC Characteristics
	Regulators and Supply Voltage Ranges
	Battery Voltage Range
	Signal	Min	Nom	Max	Note
	VBAT	3.1V	3.6V	4.2V (charging	3.1V SW cut off
				high limit voltage)
	BB Regulators
	Signal	Min	Nom	Max	Note
	VANA	2.70V	2.78V	2.86V	Imax = 80mA
	VFLASH1	2.70V	2.78V	2.86V	Imax = 70mA
					ISleep = 1.5mA
	VFLASH2	2.70V	2.78V	2.86V	Imax = 40mA
	VSIM	1.745V	1.8V	1.855V	Imax = 25mA
		2.91V	3.0V	3.09V	ISleep = 0.5mA
	VIO	1.72V	1.8V	1.88V	Imax = 150mA
					ISleep = 0.5mA
	VCORE	1.0V	1.053V	1.106V	Imax = 200mA
		1.235V	1.3V	1.365V	ISleep = 0.2mA
		1.425V	1.5V	1.575V
					Default value =
		1.710V	1.8V	1.890V
					1.5V
	RF Regulators
	Signal	Min	Nom	Max	Note
	VR1A	4.6V	4.75V	4.9V	Imax = 10mA
	VR2	2.70V	2.78V	2.86V	Imax = 100mA
		3.20V	3.3V	3.40V
	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	2.86V	Imax = 45mA

Page 10

Nokia Corporation

Issue 1 10/2001

					NHM±7
PAMS Technical Documentation					System Module & UI

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.

Internal Signals and Connections

FM Radio Interface

BB Signal	FM Radio	Min	Nom	Max	Condition	Note
	Signal
VFLASH2	Vcc1	2.7V	2.78V	2.86V		max. Icc1
						19mA
	Vcc2	2.7V	2.78V	2.86V		max. Icc2
						800uA
	VDD	2.7V	2.78V	2.86V		max. IDD
						3mA
GenIO(3)	FMClk	1.4V	1.8V	1.88V	High	Reference
		0		0.4V	Low	clock for FM
						radio module
			76471 Hz		Frequency	In GSM
		30ppm			Stability
				2 μs	trise	rise / fall time
GenIO(8)	FMWrEn	1.4V	1.8V	1.88V	High
		0V		0.4V	Low
		20μs			twd	FMWrEn high
						before rising
						edge of
						FMCtrlClk
						(write opera-
						tion)
GenIO(11)	FMCtrlClk	1.4V	1.8V	1.88V	High	max. 300kHz
		0		0.4V	Low
				1 μs	tr / tf	rise / fall time
		50 ms			tstart	FMCtrlClk
						delay after
						switching on
						the VFLASH2
						(oscillator run-
						ning)

Issue 1 10/2001

Nokia Corporation

Page 11

NHM±7
System Module & UI					PAMS Technical Documentation
	BB Signal	FM Radio	Min	Nom	Max	Condition		Note
		Signal
	GenIO(12)	FMCtrlDa	1.4V	1.8V	1.88V	High	Bidirectional
			0		0.4V	Low
					14us	tda	shift register
							available after
							ºsearch
							readyº
			10 μs			tshift	data available
							after
							FMCtrlClk ris-
							ing edge (read
							operation)
			1.5 μs			thold	FMCtrlDa sta-
							bile after
							FMCtrlClk ris-
							ing edge
							(write opera-
							tion)
	GenIO(27)	FMTuneX	1.4V	1.8V	1.88V	High	from FM mod-
			0		0.4V	Low	ule to UPP
							(FMCtrlClk =
							'1')
	MIC3P	FMAudio	228mVpp	326mVpp	460mVpp
			50dB			S/N
					2%	Harmonic
						distortion
	Internal microphone
	Signal		Min	Nom	Max	Condition		Note
	MICP				200mVpp	AC	2.2kΩ to
							MIC1B
			2.0 V	2.1 V	2.25 V	DC
	MICN		2.0V	2.1V	2.25V	DC
	Internal speaker
	Signal		Min	Nom	Max	Condition		Note
	EARP				2.0 Vpp	AC
			0.75V	0.8V	0.85V	DC	Differential
							output
	EARN				2.0 Vpp	AC
							(Vdiff = 4.0
			0.75V	0.8V	0.85V	DC
							Vpp)

Page 12

Nokia Corporation

Issue 1 10/2001

					NHM±7
PAMS Technical Documentation					System Module & UI

AC and DC Characteristics of RF±BB voltage supplies

Signal	From	To	Parameter	Min	Typ	Max	Unit	Function
name
VBAT	Battery	PA & UEM	Voltage	2.95	3.6	4.2	V	Battery supply.
								Cut±off level of
								DCT4 regulators is
			Current			2000	mA
								3.04V. Losses in
								pcb tracks and
								ferrites are taken
			Current drawn by		0.8	2	uA
								account to minimum
			PA when ºoffº
								battery voltage
								level.
VR1A	UEM	VCP	Voltage	4.6	4.75	4.9	V	Supply for varactor
								for UHF VCO
			Current		2	10	mA
								tuning.
			Noise density			240	nVrms/
							sqrt(Hz)
VR2	UEM	VRF_TX	Voltage	2.70	2.78	2.86	V	Supply for part of
								transmit strip.
			Current		65	100	mA
								Supply for TX
			Noise density					I/Q±modulators.
			f=100Hz			120	nVrms/
			f>300Hz				sqrt(Hz)
VR3	UEM	VCTCXO	Voltage	2.70	2.78	2.86	V	Supply for VCTCXO
			Current		1	20	mA
			Noise density			240	nVrms/
							sqrt(Hz)
VR4	UEM	VRF_RX	Voltage	2.70	2.78	2.86	V	Supply for Hagar
								RX; preamp., mixer,
								DTOS
			Current			50	mA
								Noise density
								decades 20dB/dec
			Noise density
								from 6Hz to 600Hz.
			f = 6 Hz			5500	nVrms/
								From f >600Hz
			f = 60 Hz			550	sqrt(Hz)
								maximum noise
			f 600Hz			55		density
								55nVRMS/√ Hz.
VR5	UEM	VDIG,	Voltage	2.70	2.78	2.86	V	Supply for Hagar
		VPRE,						PLL; dividers, LO±
			Current			50	mA
		VLO						buffers, prescaler,
			Noise density			240	nVrms/
			BW=100Hz...				sqrt(Hz)
			100kHZ
VR6	UEM	VBB	Voltage	2.70	2.78	2.86	V	Supply for Hagar
								BB and LNA
			Current			50	mA
			Noise density			240	nVrms/
			BW=100Hz...				sqrt(Hz)
			100kHz

Issue 1 10/2001 Nokia Corporation Page 13

NHM±7

System Module & UI

PAMS Technical Documentation

Signal

From

To

Parameter

Min

Typ

Max

Unit

Function

name

VR7

UEM

UHF VCO

Voltage

2.70

2.78

2.86

V

Supply for UHF

VCO

Current

30

mA

Noise density

100Hz<f<2kHz

70

nVrms/

2kHz<f<10kHz

55

sqrt(Hz)

10kHz<f<30kHz

35

30kHz<f<90kHz

30

90kHz<f<3MHz

30

VrefRF01

UEM

VREF_RX

Voltage

1.334

1.35

1.366

V

Voltage Reference

for RF±IC.

Current

100

uA

Note: Below

Temp Coef

±65

+65

uV/C

600Hz noise

density is

Noise density

60

nVrms/

allowed to

BW=600Hz...

sqrt(Hz)

increase 20

100kHz Note

dB/oct

VrefRF02

UEM

VB_EXT

Voltage

1.323

1.35

1.377

V

Supply for RF±BB

digital interface and

Current

100

uA

some digital parts of

Temp Coef

±65

+65

uV/C

RF.

Noise density

350

nVrms/

BW=100Hz...

sqrt(Hz)

100kHz

AC and DC Characteristics of RF±BB digital signals

				Input Characteristics
Signal name	From	To	Parameter					Fun
				Min	Typ	Max	Unit	c-
								tion
TXP	UPP	PA &	º1º	1.38		1.88	V	Tran
(RFGenOut3)		RF±IC						smit
								ter
			º0º	0		0.4	V	pow
								er
								amp
			Load Resistance	10		220	kohm	lifier
								ena
								ble /
								DC
			Load Capacitance			20	pF
								N2
								timi
								ng?
			Timing Accuracy			1/4	symbol
								??

Page 14 Nokia Corporation Issue 1 10/2001

NHM±7

PAMS Technical Documentation

System Module & UI

Signal name

From

To

Parameter

Fun

Min

Typ

Max

Unit

c-

tion

RFBusEna1X

UPP

RF±IC

º1º

1.38

1.88

V

RFb

us

º0º

0

0.4

V

ena

Current

50

uA

ble

Load resistance

10

220

kohm

Load capacitance

20

pF

RFBusData

UPP

RF±IC

º1º

1.38

1.88

V

RFb

us

º0º

0

0.4

V

data

Load resistance

10

220

kohm

;

read

Load capacitance

20

pF

/writ

Data frequency

10

MHz

e

RFBusClk

UPP

RF±IC

º1º

1.38

1.88

V

RFb

us

º0º

0

0.4

V

cloc

Load resistance

10

220

kohm

k

Load capacitance

20

pF

Data frequency

10

MHz

RESET

UPP

RF±IC

º1º

1.38

1.85

V

Res

(GENIO6)

et to

º0º

0

0.4

V

Hag

Load capacitance

20

pF

ar

Load resistance

10

220

kohm

Timing accuracy

1/4

symbol

AC and DC Characteristics of RF±BB analogue signals

Signal name	From	To	Parameter	Min	Typ	Max	Unit	Function
VCTCXO	VCTCXO	UPP	Signal amplitude	0.2	0.8	2.0	Vpp	High stability clock
								signal for the logic
			Input Impedance	10			kohm
								circuits, AC
			Input Capacitance			10	pF	coupled. Distorted
								sine wave eg.
			Harmonic Content			±8	dBc
								sawtooth.
			Clear signal	200			mVpp
			window (no glitch)
			Duty Cycle	40		60	%
VCTCXOGnd	VCTXO	UPP	DC Level		0		V	Ground for
								reference clock
RXI/RXQ	RF±IC	UEM	Differential voltage	1.35	1.4	1.45	Vpp	RX baseband
			swing (static)					signal.
			DC level	1.3	1.35	1.4	V
			I/Q amplitude			0.2	dB
			missmatch
			I/Q phase	±5		5	deg
			missmatch

Issue 1 10/2001 Nokia Corporation Page 15

NHM±7

System Module & UI

PAMS Technical Documentation

Signal name

From

To

Parameter

Min

Typ

Max

Unit

Function

TXIP / TXIN

UEM

RF±IC

Differential voltage

2.23

2.48

Vpp

Programmable

swing (static)

voltage swing.

Programmable

DC level

1.17

1.20

1.23

V

common mode

voltage.

Source

200

ohm

Between

Impedance

TXIP±TXIN

TXQP /

UEM

RF±IC

Same spec as for TXIP / TXIN

Differential

TXQN

quadrature phase

TX baseband

signal for the RF

modulator

AFC

UEM

VCTCXO

Voltage Min

0.0

0.1

V

Automatic

Max

2.4

2.6

frequency control

signal for

Resolution

11

bits

VCTCXO

Load resistance

1

kohm

and capacitance

100

nF

Step settling time

0.2

ms

Aux_DAC

UEM

RF

Voltage Min

0.1

V

Transmitter power

(TxC)

Max

2.4

control

Source

200

ohm

Impedance

Resolution

10

bits

Noise density

800

nVrms/

NOTE; Assumed

BW=100Hz...

sqrt(Hz)

power control

100kHz

opamp G=1

Temp Coef

±65

+65

uV/C

RFTemp

RF

UEM

Voltage at ±20oC

1,57

V

Temperature

sensor of RF.

Voltage at +25oC

1,7

Voltage at +60oC

1,79

Vbase

RF

UEM

Voltage

2.7

V

Detected voltage

from PA power

level sensing unit

External Signals and Connections

UI (board±to±board) connector

Pin	Signal	Min	Nom	Max	Condition	Note
1	SLOWAD(2)	1.5V		2.7V	Flip closed	used for flip
		0.1V		1.0V	Flip open	identification
2	VBAT	3.0V	3.6V	4.2V		Battery voltage
						for leds
3	ROW(4)	0.7xVIO		1.8V	High	Keyboard ma-
		0		0.3xVIO	Low	trix row 4

Page 16 Nokia Corporation Issue 1 10/2001

NHM±7

PAMS Technical Documentation

System Module & UI

Pin

Signal

Min

Nom

Max

Condition

Note

4

ROW(3)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix row 3

5

COL(2)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix column 2

6

ROW(2)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix row 2

7

COL(1)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix column 1

8

ROW(0)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix row 0

9

KLIGHT

VBAT

LED off

two colour led

0.3xVBAT

LED on

control

10

ROW(1)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix row 1

11

COL(3)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix column 3

12

COL(4)

0.7xVIO

VIO

High

Keyboard ma-

0

0.3xVIO

Low

trix column 4

13

GND

0V

14

GND

0V

15

GND

0V

16

GND

0V

LCD connector

Pin

Signal

Min

Nom

Max

Condition

Note

1

XRES

0.8*VIO

VIO

Logic '1'

Reset

0

0.22*VIO

Logic '0'

Active low

100ns

trw

Reset active

2

XCS

0.8*VIO

VIO

Logic '1'

Chip select

0

0.22*VIO

Logic '0'

Active low

130ns

tcss

XCS low before

SCLK rising

edge

130ns

tcsh

XCS low after

SCLK rising

edge

300ns

tcsw

XCS high pulse

width

3

GND

0V

4

SDA

0.8*VIO

VIO

Logic '1'

Serial data

0

0.22*VIO

Logic '0'

(driver input)

0.7*VIO

VIO

Logic '1'

Serial data

0

0.3*VIO

Logic '0'

(driver output)

100ns

tsds

Data setup time

100ns

tsdh

Data hold time

Issue 1 10/2001

Nokia Corporation

Page 17

NHM±7

System Module & UI

PAMS Technical Documentation

Pin

Signal

Min

Nom

Max

Condition

Note

5

SCLK

0.8*VIO

VIO

Logic '1'

Serial clock in-

0

0.22*VIO

Logic '0'

put

4.0MHz

Max frequency

250ns

tscyc

Clock cycle

110ns

tshw

Clock high

110ns

tslw

Clock low

6

VDDI (VIO)

1.72V

1.8V

1.88V

Logic voltage

supply

Connected to

VIO

7

VDD

2.72V

2.78V

2.86V

Voltage supply

(VFLASH1)

Connected to

VFLASH1

8

VOUT

9V

Booster output,

C=1uF con-

nected to GND

DC connector

Pin

Signal

Min

Nom

Max

Condition

Note

2

VCHAR

7.0 VRMS

8.4 VRMS

9.2 VRMS

Fast char-

Charger posi-

850 mA

ger

tive input

1

CHGND

0

Charger ground

Headset connector

Pin

Signal

Min

Nom

Max

Condition

Note

5

XMICP

1Vpp

G = 0dB

1kΩ to MIC2B

100 mVpp

G = 20dB

2.0 V

2.1 V

2.25 V

DC

3

XMICN

1Vpp

G = 0 dB

1kΩ to GND

100 mVpp

G = 20dB

4

XEARN

0.75V

0.8V

0.85V

DC

1Vpp

AC

7

XEARP

0.75V

0.8V

0.85V

DC

1Vpp

AC

5

HookInt

0V

2.86V

Connected to

(VFLASH1)

UEM AD±con-

verter

6

HeadInt

0V

2.86V

Accessory

(VANA)

detection

Page 18

Nokia Corporation

Issue 1 10/2001