Nokia NSE-6 Service Manual
Technical Documentation
Programs After Market Services (PAMS)
Copyright E 1997. Nokia Mobile Phones. All Rights Reserved.
SERVICE
MANUAL
[NMP Part No.0275385]
NSE–6 SERIES
CELLULAR
PHONES
NSE–6 last update: 08/98
PAMS
Technical Documentation
NSE–6
Foreword
Original 08/98
Page 2
AMENDMENT RECORD SHEET
Amendment
Number
Date Inserted By Comments
PAMS
Technical Documentation
NSE–6
Foreword
Original 08/98
Page 3
NSE–6 SERIES CELLULAR PHONES
SERVICE MANUAL – OVERALL CONTENTS
Service Manual comprising
NSE–6 Series Transceiver booklet comprising
Chapter 1: Foreword
Chapter 2: General Information
Chapter 3: System Module US8
Appendices to Transceiver booklet covering a specific variant
Appendix 1: Transceiver NSE–6NX
Booklets comprising
Service Software Instructions
Tuning Instructions
Service Tools
Disassembly/Troubleshooting Instructions
Non–serviceable Accessories
PAMS
Technical Documentation
NSE–6
Foreword
Original 08/98
Page 4
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 MOBILE
PHONES Ltd 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 Mobile Phones Ltd
PAMS Technical Documentation
PO Box 86
24101 SALO
Finland
PAMS
Technical Documentation
NSE–6
Foreword
Original 08/98
Page 5
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.
6. All PC’s used with NMP Service Software for this produce must be
bios and operating system ”Year 2000 Compliant”.
PAMS
Technical Documentation
NSE–6
Foreword
Original 08/98
Page 6
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PAMS Technical Documentation
NSE–6 Series Transceivers
Original 08/98
Chapter 2
General Information
PAMS
Technical Documentation
NSE–6
General Information
Page 2 – 2
Original 08/98
CONTENTS
Product Selection 2 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Handportables 2 – 3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Desktop Option 2 – 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Product and Module List 2 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Specifications 2 – 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General Specifications of Transceiver NSE–6 2 – 6. . . . . . . . . . . .
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Technical Documentation
NSE–6
General Information
Page 2 – 3
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Product Selection
Handportables
The NSE–6 is a handportable mobile telephone for the GSM network.
1.
2.
3.
4.
5.
6.
ACP–7E
ACP–7U
ACP–7C
ACP–7X
ACP–7H
ACP–7A
Item Name: Type code: Material code:
1. Transceiver See variant Appendices
2. Standard battery (NiMH 600 mAh) BMP–1D 0670240
3. AC Travel Charger
(Euro plug) 207–253 Vac ACP–7E 0675144
4. AC Travel Charger
(US plug) 108–132 V ac ACP–7U 0675143
AC Travel Charger
(US plug) 198–242 V ac ACP–7C 0675158
5. AC Travel Charger
(UK plug) 207–253 V ac ACP–7X 0675145
AC Travel Charger
(UK plug) 180–220 V ac ACP–7H 0675146
6. AC Travel Charger
(Australia) 216–264 Vac ACP–7A 0675148
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Technical Documentation
NSE–6
General Information
Page 2 – 4
Original 08/98
Desktop Option
The desktop option allows the user to charge the handportable and spare
battery from mains.
1.
3.
4.
5.
2.
6.
7.
8.
9.
Item Name: Type code: Material code:
1. Desktop stand CGE–1 0675180
2. AC Travel Charger
(Euro plug) 207–253 Vac ACP–7E 0675144
3. AC Travel Charger
(US plug) 108–132 V ac ACP–7U 0675143
AC Travel Charger
(US plug) 198–242 V ac ACP–7C 0675158
4. AC Travel Charger
(UK plug) 207–253 V ac ACP–7X 0675145
AC Travel Charger
(UK plug) 180–220 V ac ACP–7H 0675146
5. AC Travel Charger
(Australia) 216–264 Vac ACP–7A 0675148
6. Performance Travel Chg.
(Euro plug) 90–264 Vac ACT–1E 0675183
7. Performance Travel Chg.
(US plug) 90–264 V ac ACT–1U 0675184
8. Performance Travel Chg.
(UK plug) 90–264 V ac ACT–1X 0675185
9. Performance Travel Chg
.(Australia) 90–264 Vac ACT–1A 0675186
PAMS
Technical Documentation
NSE–6
General Information
Page 2 – 5
Original 08/98
Product and Module List
Unit/type: Product code:
Transceiver NSE–6 See variant
Appendixes
Standard Battery BMP–1D 600 mAh NiMH, black 0670240
Glossy Chrome Battery BMP–1A 600 mAh NiMH 0670230
AC Travel Charger ACP–7E (EUR) 207–253 Vac 0675144
AC Travel Charger ACP–7U (US) 108–132 Vac 0675143
AC Travel Charger ACP–7C (US) 198–242 Vac 0675158
AC Travel Charger ACP–7X (UK) 207–253 Vac 0675145
AC Travel Charger ACP–7H (UK) 180–220 Vac 0675146
AC Travel Charger ACP–7X (AUS) 216–264 Vac 0675148
Performance Travel Charger ACT–1E (EUR)
90–264 Vac
0675183
Performance Travel Charger ACT–1U (US)
90–264 Vac
0675184
Performance Travel Charger ACT–1X (UK)
90–264 Vac
0675185
Performance Travel Charger ACT–1A (AUS)
90–264 Vac
0675186
Cigarette Lighter Charger LCH–9 0675120
Desktop Stand CGE–1 0675180
Headset HDC–9 0694053
PAMS
Technical Documentation
NSE–6
General Information
Page 2 – 6
Original 08/98
Technical Specifications
General Specifications of Transceiver NSE–6
Parameter Unit
Cellular system GSM
RX frequency band 935 ... 960 MHz
TX frequency band 890 ... 915 MHz
Output power +5 ...+33 dBm / 3.2 mW ... 2 W
Duplex spacing 45 MHz
Number of RF channels 124
Channel spacing 200 kHz
Number of TX power levels 15
Sensitivity , static channel –102 dBm/ BER < 2.439 %
Frequency error, static channel < 0.1 ppm
RMS phase error < 5.0
o
Peak phase error < 20.0
o
NSE–6 Series Transceivers
PAMS Technical Documentation
Original 08/98
Chapter 3
System Module
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 2
CONTENTS
Transceiver NSE–6 3 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 3 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operation Modes 3 – 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Interconnection Diagram 3 – 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
System Module 3 – 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External and Internal Connectors 3 – 7. . . . . . . . . . . . . . . . . . . . .
Contacts Description 3 – 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Baseband Module 3 – 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Block Diagram 3 – 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Technical Summary 3 – 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging Connector 3 – 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Headset Connector 3 – 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Service connections 3 – 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Connector 3 – 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SIM Card Connector 3 – 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Microphone in Slide 3 – 14. . . . . . . . . . . . . . . . . . . . . . .
RTC Backup Battery 3 – 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buzzer 3 – 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 3 – 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution 3 – 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery charging 3 – 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Startup Charging 3 – 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Overvoltage Protection 3 – 18. . . . . . . . . . . . . . . . . . . .
Battery Removal During Charging 3 – 19. . . . . . . . . . . . . . . . . .
Different PWM Frequencies ( 1Hz and 32 Hz) 3 – 20. . . . . . .
Battery Identification 3 – 21. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Battery Temperature 3 – 22. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply Voltage Regulators 3 – 22. . . . . . . . . . . . . . . . . . . . . . . .
Switched Mode Supply VSIM 3 – 24. . . . . . . . . . . . . . . . . . . . . .
Power Up 3 – 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power up with a charger 3 – 25. . . . . . . . . . . . . . . . . . . . . . . . . .
Power Up With The Power Switch (PWRONX) 3 – 25. . . . . . .
Power Up by RTC 3 – 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Up by IBI 3 – 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Acting Dead 3 – 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Active Mode 3 – 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Sleep Mode 3 – 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Charging 3 – 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Off 3 – 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Watchdog 3 – 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio control 3 – 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
External Audio Connections 3 – 29. . . . . . . . . . . . . . . . . . . . . . .
Analog Audio Accessory Detection 3 – 30. . . . . . . . . . . . . . . . .
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Headset Detection 3 – 30. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Internal Audio Connections 3 – 31. . . . . . . . . . . . . . . . . . . . . . . .
4–wire PCM Serial Interface 3 – 31. . . . . . . . . . . . . . . . . . . . . . .
Alert Signal Generation 3 – 32. . . . . . . . . . . . . . . . . . . . . . . . . . .
Digital Control 3 – 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MAD2 3 – 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Memories 3 – 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Program Memory 3 – 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SRAM Memory 3 – 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
EEPROM Memory 3 – 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
MCU Memory Map 3 – 42. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flash Programming 3 – 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
COBBA–GJ 3 – 43. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Real Time Clock 3 – 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RTC backup battery charging 3 – 44. . . . . . . . . . . . . . . . . . . . . .
Vibra Alerting Device 3 – 44. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IBI Accessories 3 – 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Phone Power–on by IBI 3 – 45. . . . . . . . . . . . . . . . . . . . . . . . . . .
IBI power–on by phone 3 – 45. . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Module 3 – 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maximum Ratings 3 – 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF Frequency Plan 3 – 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Distribution Diagram 3 – 47. . . . . . . . . . . . . . . . . . . . . . . . . .
DC Characteristics 3 – 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Regulators 3 – 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Control Signals 3 – 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 3 – 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Frequency synthesizers 3 – 49. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver 3 – 51. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter 3 – 52. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AGC strategy 3 – 54. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
AFC function 3 – 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Receiver blocks 3 – 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RX interstage filter 3 – 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1st mixer in CRFU_1a 3 – 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1st IF–filter 3 – 55. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter Blocks 3 – 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
TX interstage filter 3 – 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power amplifier module 3 – 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Synthesizer blocks 3 – 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
VHF VCO and low pass filter 3 – 56. . . . . . . . . . . . . . . . . . . . . . . .
UHF PLL 3 – 56. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UHF PLL block in SUMMA 3 – 56. . . . . . . . . . . . . . . . . . . . . . . . . .
UHF VCO module 3 – 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
UHF local signal input in CRFU_1a 3 – 57. . . . . . . . . . . . . . . . . . .
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Connections 3 – 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
RF baseband signals 3 – 57. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Timings 3 – 60. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Synthesizer control timing 3 – 60. . . . . . . . . . . . . . . . . . . . . . . . . . .
Transmitter power switching timing diagram 3 – 62. . . . . . . . . . .
Synthesizer clocking 3 – 62. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Parts list of US8 (EDMS Issue 7.13) Code: 0201187 3 – 63. . . . . . . . .
Schematic Diagrams: US8
Block Diagram of UIF 3/A3–1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Diagram of UIF (Version 7.0 Edit 218) for layout version 07 3/A3–2
Block Diagram of Baseband 3/A3–3. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Diagram of Baseband (Version 7.0 Edit 105) for layout 07 3/A3–4
Circuit Diagram of Power Supply (Version 7.0 Edit 257) for layout 07 3/A3–5
Circuit Diagram of SIM Connectors (Version 7.0 Edit 71) for layout 07 3/A3–6
Circuit Diagram of CPU Block (Version 7.0 Edit 208) for layout 07 3/A3–7
Circuit Diagram of Audio (Version 7.0 Edit 126) for layout 07 3/A3–8
Circuit Diagram of IR Module (Version 7.0 Edit 96) for layout 07 3/A3–9
RF Block Diagram 3/A3–10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Circuit Diagram of RF Block (Version 1.0 Edit 244) for layout 07 3/A3–11
Layout Diagram of US8 – Top (Version 07) 3/A3–12. . . . . . . . . . . . . . . . .
Layout Diagram of US8 – Bottom (Version 07) 3/A3–12. . . . . . . . . . . . . .
Testpoints of US8 – Top (Version 07) 3/A3–13. . . . . . . . . . . . . . . . . . . . . .
Testpoints of US8 – Bottom (Version 07) 3/A3–13. . . . . . . . . . . . . . . . . . .
Testpoint references (Version 07) 3/A3–14. . . . . . . . . . . . . . . . . . . . . . . . .
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Transceiver NSE–6
Introduction
The NSE–6 is a radio transceiver unit designed for the GSM network. It is a
GSM phase 2 power class 4 transceiver providing 15 power levels with a
maximum output power of 2 W. The transceiver is a true 3 V transceiver.
The transceiver consists of System/RF module (US8), Keyboard module
(UK8) and assembly parts.
The transceiver has full graphic display and two soft key based user interface. The antenna is internal. External antenna connection is not available. The transceiver has leakage tolerant earpiece and noise cancelling
microphone. Integrated IR link provide connection for two NSE–6 transceivers or NSE–6 transceiver and PC.
The plug–in SIM ( Subscriber Identity Module ) card is located inside the
phone, slot for inserting is in the left side of the phone, accessable when
battery is removed and slide is open.
Operation Modes
There are six different operation modes:
– power off mode
– idle mode
– NSPS mode
– active mode
– charge mode
– local mode
In the power off mode only the circuits needed for power up are supplied.
In the idle mode circuits are powered down and only sleep clock is run-
ning.
In the No Serve Power Save mode circuits are powered down, and only
sleep clock is running if no carrier is found during the scanning period.
The purpose of this mode is to reduce power consumption in the non–
network area.
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 charge and the
maintenance mode.
The local mode is used for alignment and testing.
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System Module
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Interconnection Diagram
Module
System/RF
US8
Display
SIM
Battery
Charger
Antenna
3 + 3
Earpiece
IR Module
6
4
2
Mic
2
14
2
9
Keyboard
module
UK8
6
Vibra
2
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System Module
External and Internal Connectors
Suppply Voltages and Power Consumption
Connector Line Symbol Minimum Typical /
Nominal
Maximum/
Peak
Unit / Notes
Charging VIN 7.1 8.4 9.3 V/ Travel charger,
ACT–1
Charging VIN 7.25 7.6 7.95 V/ Travel charger.
ACP–7
Charging I / VIN 720 800 850 mA/ Travel char-
ger, ACT–1
Charging I / VIN 320 370 420 mA/ Travel char-
ger, ACP–7
Battery contact signals
Pin Line
Symbol
Parameter Mini-
mum
Typical
/ Nomi-
nal
Maxi-
mum
Unit / Notes
1 BVOLT Battery voltage 3.0 3.6 5.3 V/ Maximum voltage in idle
mode with a charger connected
2 BSI
Input voltage 0 2.85 V/ Battery size indication
Phone has 100k pull up resistor
SIM Card removal detection
Battery indication
18"1% kohm/ Ni battery
resistor
20 22 24 kohm/ service battery
27 51 kohm/ 4.1V Li battery
68 91 kohm/ 4.2V Li battery
3 BTEMP Input voltage
Input voltage
Output voltage
0
2.1
1.9
1.4
3
2.8
V/ Battery temperature indication
V/ Phone power up (pulse)
V/ Battery power up (pulse)
4 BGND 0 0 V
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 8
Contacts Description
The transceiver electronics consist of the Radio Module ie. RF + System
blocks, the keyboard PCB, the display module and audio components.
The keypad and the display module are connected to the Radio Module
with connectors. System blocks and RF blocks are interconnected with
PCB wiring. The Transceiver is connected to accessories via charger connector (includes jack and plates), headset connector and IR–link.
The System blocks provide the MCU, DSP and Logic control functions in
MAD ASIC, external memories, audio processing and RF control hardware in COBBA ASIC. Power supply circuitry CCONT ASIC delivers operating voltages both for the System and the RF blocks.
The RF block is designed for a handportable phone which operates in the
GSM system. 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 SUMMA ASIC is used for VHF
and PLL functions. The CRFU ASIC is used at the front end.
PAMS
Technical Documentation
NSE–6
System Module
Page 3 – 9
Original 08/98
Baseband Module
Block Diagram
CCONT
UI
SIM
MAD
DC–jack
CHAPS
COBBA
BATTERY
PA SUPPLY
RF SUPPLIES
BB SUPPLY
TX/RX SIGNALS
BASEBAND
VBAT
+
MEMORIES
COBBA SUPPLY
32kHz
CLK
13MHz
CLK
SLEEP CLOCK
SYSTEM CLOCK
Technical Summary
The baseband module consists of four asics, CHAPS, CCONT, COBBA–
GJ and MAD2, which take care of the baseband functions of NSE–6.
The baseband is running from a 2.8V power rail, which is supplied by a
power controlling asic. In the CCONT asic there are 6 individually controlled regulator outputs for RF–section and two outputs for the baseband. In addition there is one +5V power supply output VCP for RF–part.
The CCONT contains also a SIM interface, which supports both 3V and
5V SIM–cards. A real time clock function is integrated into the CCONT,
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
rechargable polyacene battery. The backup time with this battery is minimum of ten minutes.
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 10
The interface between the baseband and the RF section is handled by a
specific asic. The COBBA asic 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 UI section. The COBBA supplies the analog TXC and AFC signals to rf section according to the MAD DSP digital control and converts
analog AGC into digital signal for the DSP. Data transmission between the
COBBA and the MAD is implemented using a parallel connection for high
speed signalling and a serial connection for PCM coded audio signals.
Digital speech processing is handled by the MAD asic. The COBBA asic
is a dual voltage circuit, the digital parts are running from the baseband
supply VBB and the analog parts are running from the analog supply
VCOBBA.
The baseband supports two external microphone inputs and two external
earphone outputs. The inputs can be taken from an internal microphone,
a headset microphone or from an signal source. The microphone signals
from different sources are connected to separate inputs at the COBBA
asic.
The output for the internal earphone is a dual ended type output capable
of driving a dynamic type speaker. Input and output signal source selection and gain control is performed inside the COBBA asic according to
control messages from the MAD. Keypad tones, DTMF, and other audio
tones are generated and encoded by the MAD and transmitted to the
COBBA for decoding. A buzzer alert and vibra control signals are generated by the MAD via UI–Switch.
PAMS
Technical Documentation
NSE–6
System Module
Page 3 – 11
Original 08/98
Charging Connector
Contact Line Symbol Function
DC–jack
side contact
(DC–plug ring)
L_GND Charger ground
DC–jack
center pin
VIN Charger input voltage
DC–jack
side contact
(DC–plug jacket)
CHRG_CTRL Charger control output (from phone)
Pin Name Min Typ Max Unit Notes
2, b VIN
7.25
3.25
320
7.6
3.6
370
7.95
16.9
3.95
420
V
V
V
mA
Unloaded ACP–7 Charger (5kohms
load)
Peak output voltage (5kohms load)
Loaded output voltage (10ohms load)
Supply current
7.1
3.25
720
8.4
3.6
800
9.3
3.95
850
V
V
mA
Unloaded ACP–9 Charger
Loaded output voltage (10ohms load)
Supply current
3, a L_GND 0 0 V Supply ground
4, c CHRG_
0 0.5 V Charger control PWM low
CTRL
2.0 2.85 V Charger control PWM high
32 Hz PWM frequency for a fast charger
1 99 % PWM duty cycle
Headset Connector
Contact Line Symbol Function
2 XMIC Accessory microphone signal input (to phone)
1 SGND Accessory signal ground
3 XEAR Accessory earphone signal output (from phone)
Pin Name Min Typ Max Unit Notes
2 XMIC
2.0 2.2 kΩ Input AC impedance
1 Vpp Maximum signal level
100 600 µA Bias current
58 490 mV Maximum signal level
1 SGND
10 µF Series output capacitance
0 Ω Resistance to phone ground
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 12
NotesUnitMaxTypMinNamePin
3 XEAR
47 Ω Output AC impedance (ref. SGND)
10 µF Series output capacitance
16 150 300 Ω Load AC impedance to SGND (Head-
set)
1.0 Vpp Maximum output level (no load)
22 626 mV Output signal level
16 1500 Ω Load DC resistance to SGND (Head-
set)
2.8 V DC voltage (47k pull–up to VBB)
Service connections
Pin Name Min Typ Max Unit Notes
J124 MBUS 0 logic low 0.8 V Serial bidirectional control bus.
2.0 logic high 2.85
Baud rate 9600 Bit/s
Phone has a 4k7 pullup resistor
J255 FBUS_RX 0 logic low 0.8 V Fbus receive. Serial Data
2.0 logic high 2.85
Baud rate 9.6k–230.4kBit/s
Phone has a 220k pulldown resistor
J256 FBUS_TX 0 logic low 0.5 V Fbus transmit. Serial Data
2.0 logic high 2.85
Baud rate 9.6k–230.4kBit/s
Phone has a 47k pullup resistor
J123 GND 0 0.3 V Supply ground
MBUS
FBUS RX
FBUS TX
GND
Battery pack lay
Battery connector
Phone from back sid
TOP
PAMS
Technical Documentation
NSE–6
System Module
Page 3 – 13
Original 08/98
Battery Connector
The electrical specifications for the battery connector is shown in
NO TAG. The BSI contact on the battery connector is used to detect when
the battery is to be removed to be able to shut down the operations of the
SIM card before the power is lost if the battery is removed with power on.
The BSI contact in the battery pack is 0.7mm shorter than the supply
power contacts to give enough time for the SIM shut down.
Pin Name Min Typ Max Unit Notes
4 BVOLT 3.0 3.6 4.5 V Battery voltage
5.0
5.3
Maximum voltage in call state with charger
Maximum voltage in idle state with charger
3 BSI
0 2.85 V Battery size indication
Phone has 100kohm pull up resistor.
SIM Card removal detection
(Threshold is 2.4V@VBB=2.8V)
18"1% kohm Battery indication resistor (Ni battery)
20 22 24 kohm Battery indication resistor (service battery)
27 51 kohm Battery indication resistor (4.1V Lithium bat-
tery)
68 91 kohm Battery indication resistor (4.2V Lithium bat-
tery)
2 BTEMP
0 1.4 V Battery temperature indication
Phone has a 100k (+–5%) pullup resistor,
Battery package has a NTC pulldown resistor:
47k+–5%@+25C , B=4050+–3%
2.1
1 10
3
20
V
ms
Phone power up by battery (input)
Power up pulse width
1.9
90 100
2.85
200
V
ms
Battery power up by phone (output)
Power up pulse width
0 1 kohm Local mode initialization (in production)
1 BGND 0 0 V Battery ground
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 14
SIM Card Connector
Pin Name Parameter Min Typ Max Unit Notes
4 GND GND 0 0 V Ground
3, 5 VSIM 5V SIM Card
3V SIM Card
4.8
2.8
5.0
3.0
5.2
3.2
V Supply voltage
6 DATA 5V Vin/Vout
3V Vin/Vout
4.0
0
2.8
0
”1”
”0”
”1”
”0”
VSIM
0.5
VSIM
0.5
V SIM data
Trise/Tfall max 1us
2 SIMRST 5V SIM Card
3V SIM Card
4.0
2.8
”1”
”1”
VSIM
VSIM
V SIM reset
1 SIMCLK Frequency
Trise/Tfall
3.25
25
MHz
ns
SIM clock
Internal Microphone in Slide
Pin Name Min Typ Max Unit Notes
6 MICP 0.55 4.1 mV Connected to COBBA MIC2N input. The
maximum value corresponds to1 kHz, 0
dBmO network level with input amplifier
gain set to 32 dB. typical value is maximum value – 16 dB.
7 MICN 0.55 4.1 mV Connected to COBBA MIC2P input. The
maximum value corresponds to1 kHz, 0
dBmO network level with input amplifier
gain set to 32 dB. typical value is maximum value – 16 dB.
RTC Backup Battery
The RTC block in CCONT needs a power backup to keep the clock running when the phone battery is disconnected. The backup power is supplied from a rechargable polyacene battery that can keep the clock running minimum of 10 minutes. The backup battery is charged from the
main battery through CHAPS.
Signal Parameter Min Typ Max Unit Notes
VBACK
Backup battery charging from CHAPS
3.02 3.15 3.28 V
Backup battery charging from CHAPS
100 200 500 uA Vout@VBAT–0.2V
VBACK
Backup battery supply
to CCONT
2 3.28 V Battery capacity
65uAh
Backup battery supply
to CCONT
80 uA
PAMS
Technical Documentation
NSE–6
System Module
Page 3 – 15
Original 08/98
Buzzer
Signal Maximum
output cur-
rent
Input
high level
Input
low level
Level (PWM)
range, %
Frequency
range, Hz
BuzzPWM /
BUZZER
2mA 2.5V 0.2V 0...50 (128 lin-
ear steps)
440...4700
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 16
Functional Description
Power Distribution
In normal operation the baseband is powered from the phone‘s battery.
The battery consists of three Nickel Metal Hydride cells. There is also a
possibility to use batteries consisting of one Lithium–Ion cell. An external
charger can be used for recharging the battery and supplying power to
the phone. The charger can be either a standard charger that can deliver
around 400 mA or so called performance charger, which can deliver supply current up to 850 mA.
The baseband contains components that control power distribution to
whole phone excluding those parts that use continuous battery supply.
The battery feeds power directly to following parts of the system: CCONT,
power amplifier, and UI (buzzer, display, keyboard lights, IR and vibra).
Figure below shows a block diagram of the power distribution.
The power management circuit CHAPS provides protection agains overvoltages, charger failures and pirate chargers etc. that would otherwise
cause damage to the phone.
CCONT
SIM
+
DC–jack
CHAPS
COBBA
BATTERY
PA SUPPLY
RF SUPPLIES
VBB
BASEBAND
VBAT
VCOBBA
VSIM
VBB
CNTVR
PWM
VBAT
PWRONX
PURX
VIN
UI
BACKUP
RTC
MEMORIES
MAD
LIM
VBB
PAMS
Technical Documentation
NSE–6
System Module
Page 3 – 17
Original 08/98
Battery charging
The electrical specifications give the idle voltages produced by the acceptable chargers at the DC connector input. The absolute maximum input voltage is 30V due to the transient suppressor that is protecting the
charger input. At 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.
VIN
CHAPS
4k7
1n
PWM
VBAT
GND
CCONT
CHRG_CTRL
L_GND
CHARGER
PWM_OUT
TRANSCEIVER
0R22
VCHAR
ICHAR
47k
22k
1u
1.5A
30V
VCH
VOUT
RSENSE
GND
NOT IN
ACP–7
CCONTINT
MAD
LIM
MAD
Startup Charging
When a charger is connected, the CHAPS is supplying a startup current
minimum of 130mA to the phone. The startup current provides initial
charging to a phone with an empty battery. Startup circuit charges the
battery until the battery voltage level is reaches 3.0V (+/– 0.1V) and the
CCONT releases the PURX reset signal and program execution starts.
Charging mode is changed from startup charging to PWM charging that is
controlled by the MCU software. If the battery voltage reaches 3.55V
(3.75V maximum) before the program has taken control over the charging, the startup current is switched off. The startup current is switched on
again when the battery voltage is sunken 100mV (nominal).
Parameter Symbol Min Typ Max Unit
VOUT Start– up mode cutoff limit Vstart 3.45 3.55 3.75 V
VOUT Start– up mode hysteresis
NOTE: Cout = 4.7 uF
Vstarthys 80 100 200 mV
Start–up regulator output current
VOUT = 0V ... Vstart
Istart 130 165 200 mA
PAMS
Technical Documentation
NSE–6
System Module
Original 08/98
Page 3 – 18
Battery Overvoltage Protection
Output overvoltage protection is used to protect phone from damage.
This function is also used to define the protection cutoff voltage for different battery types (Li or Ni). The power switch is immediately turned OFF if
the voltage in VOUT rises above the selected limit VLIM1 or VLIM2.
Parameter Symbol LIM input Min Typ Max Unit
Output voltage cutoff limit
(during transmission or Li–
battery)
VLIM1 LOW 4.4 4.6 4.8 V
Output voltage cutoff limit
(no transmission or Ni–bat-
tery)
VLIM2 HIGH 4.8 5.0 5.2 V
The voltage limit (VLIM1 or VLIM2) is selected by logic LOW or logic
HIGH on the CHAPS (N101) LIM– input pin. Default value is lower limit
VLIM1.
When the switch in output overvoltage situation has once turned OFF, it
stays OFF until the the battery voltage falls below VLIM1 (or VLIM2) and
PWM = LOW is detected. The switch can be turned on again by setting
PWM = HIGH.
PWM (32Hz)
VOUT
VLIM1 or VLIM2
t
SWITCH
ON OFF
VCH
t
VCH<VOUT
ON
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