Nokia 8890 Service Manual 04uif
PAMS Technical Documentation
NSB–6 Series Transceivers
UI Description
Issue 1 06/2000 E Nokia Mobile Phones Ltd.
NSB–6
UI Description
PAMS Technical Documentation
CONTENTS
UI Description 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Introduction 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
BB Interface 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
LCD Module Interface 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Functional Description 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Audio control 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Display Circuit 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Keyboard 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Power Key 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Backlighting 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Buzzer 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Speaker 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Microphone 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Vibra Alerting Device 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
IR Module 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
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UI Description
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UI Description
UI Description
Introduction
UI module is implemented on same PCB board with BB–module and RF–
module. UI HW part are LCD, backlighting, audio parts, IR and vibra.
PAMS Technical Documentation
Buzzer Keys
1
2
2
BASEBAND
1
LED
8
5
LCD
3
IR
1
Vibra
BB Interface
Signal Parameter Min Typ Max Unit Notes
IRONX IR–module on/off 0 0.3 x VBB V IR on state
0.7 x VBB VBB Iout@2mA
FBUS_RX
FBUS_TX
VIBRA From VB 0.9 1.0 1.1 V
ROW (0:4) Rows 0
COL (0:4) COL0 0
VB 3.0 4.8 Battery voltage
Page 4
IR receive pulse 0 0.3 x VBB
IR receive no pulse 0.7 x VBB VBB
IR transmit pulse 0.7 x VBB VBB Iout@2mA
IR transmit no pulse 0 03 x VBB
115 140 mA
0.3 x VBB
0.7 x VBB
0.3 x VBB
0.7 x VBB
E Nokia Mobile Phones Ltd.
VBB
VBB
V Keyboard matrix
row
Keyboard matrix
column
(for lights)
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PAMS Technical Documentation
NSB–6
UI Description
NotesUnitMaxTypMinParameterSignal
PWRONX 0
0.7 x VBB
ROW5/
LCDCD
SCL 0
SDA 0
LCDEN 0
LCDRSTX 0
GND 0 0 Ground
BUZZER 0 0.3 x VBB PWM low level
LCD command / data 0
0.7 x VBB
0.7 x VBB
0.7 x VBB
0.7 x VBB
0.7 x VBB
0.7 x VBB VBB PWM high level
440 4700 Hz Buzzer PWM fre-
0 50 % PWM duty cycle
0.3 x VBB
VBB
0.3 x VBB
VBB
0.3 x VBB
VBB
0.3 x VBB
VBB
0.3 x VBB
VBB
0.3 x VBB
VBB
V Power on key
Keyboard matrix
row 5
LCD driver code/
data selection
LCD driver serial
clock
LCD driver serial
data
LCD driver chip
select
LCD driver reset
quency
VBB 2.7 2.8 2.9 V Logic supply volt-
age
LIGHT 0
0.7 x VBB
EARN 17.6 788 mV Connected to
EARP 17.6 788 mV Connected to
0.3 x VBB
VBB
Illumination control
COBBA EARN
output.
COBBA EARP
output.
LCD Module Interface
Pin Line
Symbol
1 VBB Supply voltage 2.7 2.8 2.9 V
2 SCLK Serial clock input 0 4.0 MHz VBB = 2.7V
3 SDA Serial data input 0 0.3xVBB
Parameter Mini-
mum
0 VBB V
Typical
/ Nomi-
nal
Maxi-
mum
300 uA
Unit Notes
4 LCDCDX Control/display data
flag input
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0.7xVBB VBB
0 0.3xVBB Control
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UI Description
PAMS Technical Documentation
Pin
Symbol
5 LCDCSX Chip select input 0 0.3xVBB Active
6 OSC External clock for LCD 30.4 32.0 33.6 kHz Connected
7 GND Ground 0 V
8 VOUT DC/DC voltage con-
9 LCDRSTX Reset 0 0.3xVBB Active
ParameterLine
verter output
Minimum
0.7xVBB VBB Data
0.7xVBB VBB
0.7xVBB VBB
Typical
/ Nomi-
nal
mum
9
NotesUnitMaxi-
to VBB on
PCB
19
Display Driver
Viewing trought LCD cell
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