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PAMS Technical Documentation RAE-3 Series PDA

4. User Interfaces

Issue 1 06/01

Copyright E 2001. Nokia Mobile Phones. All Rights Reserved.

RAE-3 4. User Interfaces

PAMS Technical Documentation

AMENDMENT RECORD SHEET
Amendment Number Date Inserted By OJuntunen Comments

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RAE-3 4. User Interfaces

CONTENTS ­Troubleshooting Page No
Abbreviations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RAE-3 User Interface Structure . . . . . . . . . . . . . . . . . . . . . . . . . . . User Interface DL2 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Main Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . DC Characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X1 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antenna clip connector . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X2 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X3 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X6 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . X7 connector pinout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . RF connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Functional description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Power distribution and control signals . . . . . . . . . . . . . . . . . DL2 Circuit Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Keypad scanning. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CMT keypad and CMT LCD backlight . . . . . . . . . . . . . . . . . CMT LCD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PDA LCD Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PDA LCD Backlight circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . PDA LCD Power circuit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Antenna connectors and ground plane . . . . . . . . . . . . . . . . QWERTY Keyboard Module UL8 . . . . . . . . . . . . . . . . . . . . . . . . . General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AF8 PWB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 5 6 6 6 7 9 9 10 11 11 12 13 13 14 14 14 14 15 15 16 17 18 18 19

Figures Page No
Schematics/ Layouts

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Abbreviations
AC BL8 BOC CMT CCFL DL2 ESD FPC FSTN LCD LED MCU PWB PDA UI UIF UL2 Alternating Current RAE­3 Main PWB Blue Oyster Cult Cellular Mobile Transceiver Cold Cathode Fluorescent Lamp Linda Display module including PWB and displays Electro Static Discharge Flexible Printed Circuit Film Compensated Super Twisted Nematic Liquid Crystal Display Light Emitting Diode Micro Computer Unit Printed Wiring Board Personal Digital Assistant User Interface User InterFace DL2 PWB submodule

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RAE-3 4. User Interfaces

RAE-3 User Interface Structure
RAE­3 GSM900/GSM1800 Dual Band Communicator User Interface comprises the QWERTY keyboard module UL8 and the DL2 module with both displays.

User Interface DL2
This section describes the DL2 module. This module includes ­ a PWB (UL2) with SMD components, ­ PDA display (including CCFL backlight), ­ CMT display with frame and lightguide and ­ CMT keypad backlights. DL2 is located in the cover side of RAE­3. Figures below describe the two sides of the module.

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Figure 1.

DL2 module

Main Components
DL2 main components include UL2 PWB with components, PDA display and CMT display. Components on the module assembly include the following: ­ Four layer, 0.6mm thick PWB (UL2) including: ­ PDA LCD CCFL backlight circuit. ­ Power circuit for PDA LCD bias voltages. ­ Power circuit and LEDs for CMT keypad and CMT display backlight. ­ Antenna clips and ground plane. ­ Coaxial cable connector for antenna cable. ­ 10­pin and 20­pin flex connectors for PDA display module. Issue 1 06/01

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­ 50­pin flex connector for hinge flex. ­ 10­pin flex connection for CMT display. ­ 4­way stacker connection for piezo flex assembly. ­ Pads for CMT keypad. ­ PDA soft key switches. ­ PDA LCD module including lightguide, piezo transformer FPC, CCFL and metal frame. ­ CMT Display module including metal frame and lightguide.

DC Characteristics
Supply voltages and power consumption are listed below:
Pin / Conn. X1/1, X1/49, X1/50 X1/11 Line Symbol VB Parameter Battery Voltage Logic voltage Minimum 3.0 Typical 3.6 Maximum 4.2 210 VBB 2.7 2.8 2.9 20 V mA V mA Unit Notes 4.8V Absolute maximum

Connections
The 50­way FPC connects the DL2 to the BL8 (system logic and RF board) via the hinge. It has all active signals for the DL2 module and supply pins. It is connected to the 50­pin board­to­board connector X1. DL2 has coaxial cable connector for antenna cable. This co­axial cable goes through the hinge to the BL8 RF part.

X1 connector pinout
PIN/ Pins Line Symbol Parameter Min. Typ. / No m. 3.6 2.8 0 4.2 2.9 Max. Unit Active level Function

1,49 50 11 3, 7, 19, 26, 37, 38, 44, 48 21

VB VBB GND

Battery voltage Logic voltage Ground

3.0 2.7

V V V

Supply Supply Supply

LCDPWR

PDA LCD Voltages switch

0 1.58V

0.88V VBB

V

Inactive Active

Input. High level turns on supply to display

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PIN/ Pins

Line Symbol

Parameter

Min.

Typ. / No m. 3.25 4.0

Max.

Unit

Active level

Function

16

GenSClk

Serial Clock for CMT di l display

0 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB

MHz V V V Low High Low High Control Data

Input Input Input Input. Low level selects command register Input. Low level enables writing to the display Input. Low level resets the display Input. High level turns lights on. Input Input Input Input Input Input Input Input Input Input Input

0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB

18 46

GenSDIO

Serial Data for CMT display

Row5LCDC CMT display conD trol / data

15

LCDEN

CMT display enable

0 0.7xVBB

0.3xVBB VBB

V

Active Inactive

13

LCDRSTX

CMT display reset

0 0.7xVBB 0 0.7xVBB 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V 0 1.58V

0.3xVBB VBB 0.3xVBB VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB 0.88V VBB

V

Active Inactive Active Inactive Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High Low High

14

KBLIGHTS

CMT keypad and display backlight control PDA display data PDA display data PDA display data PDA display data PDA display data PDA display data PDA display data PDA display data PDA display data PDA display data PDA display data

V

22 2 4 33 8 31 32 6 9 5 34

LCDDa0 LCDDa1 LCDDa2 LCDDa3 LCDDa4 LCDDa5 LCDDa6 LCDDa7 LCDDa8 LCDDa9 LCDDa10

V V V V V V V V V V V

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PIN/ Pins

Line Symbol

Parameter

Min.

Typ. / No m.

Max.

Unit

Active level

Function

20 25

LCDDa11 DISPClk

PDA display data PDA display Pixel clock l k PDA display Line pulse l PDA display Frame pulse F l PDA display AC­ modulation d l ti PDA display ON/ OFF Connected to ground for color display detection. Keypad column 0 Keypad column 1 Keypad column 2 Keypad column 3 Keypad column 4 Keypad row 0 Keypad row 1 Keypad row 2 Keypad row 3

0 1.58V 8 0 1.58V 0 0 1.58V 0 0 1.58V 0 0 1.58V 0 1.58V 10.8 51.5 10.8 8.66

0.88V VBB 10 0.88V VBB 12.5 0.88V VBB 59 0.88V VBB 15 0.88V VBB 0.88V VBB

V MHz V kHz V Hz V kHz V V

Low High Low High Low High Low High Low High Active Inactive

Input

Input

35

LLClk

Input

23

FSP

Input

10

LCDM

Input Input Unused.

24 36

DISPON LCD_TEM P Col0 Col1 Col2 Col3 Col4 Row0 Row1 Row2 Row3

30 27 28 43 45 29 39 40 41

0 0.7xVBB 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB 0 0.7xVBB

0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB

V V V V V V V V V

Low High Low High Low High Low High Low High Low High Low High Low High Low High

Input Input Input Input Input Output Output Output Output

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PIN/ Pins

Line Symbol

Parameter

Min.

Typ. / No m.

Max.

Unit

Active level

Function

42 17

Row4 LCDPWM

Keypad row 4 PDA LCD Contrast control

0 0.7xVBB 0 0.7xVBB 50.7 0 0.7xVBB 335

0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB

V V KHz V Hz

Low High Low High Low High

Output Input

47

BACKPWM PDA LCD Backlight control

Input

Antenna clip connector
DL2 has antenna clips that are connected to the antenna.
Pin X1/1, X1/49, X1/50 Line Symbol VB Parameter Battery Voltage Minimum 3.0 Typical / Nominal 3.6 Maximum 4.2 V Unit Notes 4.8V Absolute maximum

X2 connector pinout
Row driver features a 10­pin flex connector.
Pin Line Symbol GND XINH YSCL FRY VCCY V5Y NC 0 0.8 x VDDY 0 0.9 x VDDY 0 0.8 x VDDY 2.7 Minimum Typical / Nominal 0 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 VCC­V5Y 3.3 0.2 x VDDY VDDY 0.1 x VDDY VDDY 0.2 x VDDY VDDY 4.5 Maximum Unit Notes

1 2 3 4 5 6 7

V V V V V

LCD driving level for Y driver IC Line sub­sampling signal for Y driver IC Shift clock for Y driver IC Output control for Y driver IC High level supply voltage for Y driver IC Low level supply voltage for Y driver IC Not connected

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Pin

Line Symbol V0Y VDD DY 8.0

Minimum

Typical / Nominal V0Y­V5Y­VDD 33

Maximum

Unit

Notes

8 9 10

V

LCD driving level for Y driver IC LCD driving level for Y driver IC

0 0.8 x VDDY

Logic 0 Logic 1

0.2 x VDDY VDDY

Shift start pulse for Y driver IC

X3 connector pinout
Column drivers feature a 20­pin flex connector.
Pin 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Line Symbol VCC VDDH D23 D22 D21 D20 GCP FR LP RES D03 D02 D01 D00 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX Minimum Typical / Nominal Maximum Unit V V V V V V V V V V V V V V Notes Logic supply for X driver LCD supply for X driver Digital video signal Digital video signal Digital video signal Digital video signal PWM width control pulse for X driver Output alternation signal for X drivers Data load and shift pulse for X driver PWM counter reset signal for X driver Digital video signal Digital video signal Digital video signal Digital video signal

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Pin 15 16 17 18 19 20

Line Symbol XSCL D13 D12 D11 D10 GND

Minimum 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX 0 0.7 x VDDX

Typical / Nominal Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 Logic 0 Logic 1 0

Maximum 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX 0.3 x VDDX VDDX

Unit V V V V V V

Notes Shift clock for X driver Digital video signal Digital video signal Digital video signal Digital video signal Logic Low signal for X driver, LCD low level for X driver

X6 connector pinout
X6 is a 4 way 'stacker' connector to piezo FPC.
Pin Line Symbol 1 2 3 4 Feedback Piezo_in AGND GND Parameter Minimum 0 0 Typical / Nominal 0.84 5 0 0 Maximum 1.54 8 Unit Function

Feedback from CCFL output Input to primary of piezo transformer

V Vrms V V

Input Output Supply Supply

X7 connector pinout
X7 is a 10 way flex connector to CMT LCD..
Pin Line Symbol 1 2 3 4,5 6 GND VOUT LCDRSTX VBB GenSClk Parameter Minimum Typical / Nominal 0 9 0 2.7 203kHz 2.8 3.25MH z 0.3xVBB 2.9 300 Serial clock input 3.25MHz V uA MHz Output Active Maximum Unit Notes Function

Ground DC/DC voltage converter output Reset Supply voltage

V

Supply Input Output Supply

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Pin

Line Symbol

Parameter

Minimum 0 0,7xVBB

Typical / Nominal

Maximum 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB 0.3xVBB VBB

Unit

Notes

Function

6 7 8 GenSDIO Row5LCD CD LCDEN OSC* Serial data input Control/display data flag input Chip select input External clock for LCD

V V V

Low High Low High Control Data Active Inactive Connected to VBB on UL2

Output Output Output

0 0.7xVBB 0 0.7xVBB

9 10

0 0.7xVBB

Output Inactive

RF connection
Pin Line symbol RF Parameter Antenna feed cable Minimum Maximum frequency frequency 890 MHz 1880 MHz Maximum power 33 dBm (peak) 28.8 dBm (average) Notes

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Functional description
Power distribution and control signals
The following block diagram describes the distribution of power supplies within DL2. Battery voltage VB is fed directly to the illumination LEDS (CMT keymat and CMT display) The regulated band supply VBB generated on the BL8 module supplies the CMT display, control logic and PDA display supply. A power switch is used to remove the voltage supply from the control logic and PDA display when the display is turned off.

VB VBB 110mA typical 300uA max BACKPWM 16mA typ LCDPWR KBLIGHTS 20mA typ 10mA typ

PDA LCD Bias power and control logic

CMT LCD

PDA LCD backlight

Keyboard backlight

CMT LCD backlight

GND

Figure 2.

Power distribution and control signals of UL2.

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DL2 Circuit Description
The module is connected via a 50 way FPC to the BL8 system logic. The module includes following main blocks: ­ CMT keyboard geometries. ­ Switches for PDA soft keyboard ­ Backlight LEDs for CMT keypad and CMT LCD illumination. ­ CMT LCD. ­ PDA LCD module. ­ PDA LCD backlight circuit. ­ PDA LCD power circuit. ­ PDA LCD interface control logic. ­ Hinge flex connector. ­ Antenna connector and ground plane.

Keypad scanning.
There is 26 keys located in DL2 module. 6 PDA soft keys are located inside the lid and 20 CMT keys on the outer side. All these keys are in the same keyboard matrix as the QWERTY­keypad in the UL8 module. Col(0­4) are used as column lines in keypad. Row(0­4 and 6) are used as row lines. When a key is pressed the MCU gets an interrupt from a row and starts scanning. One column at a time is written low and rows are used to read which key is pressed.

CMT keypad and CMT LCD backlight
The CMT keypad and CMT display are illuminated with LEDs. Each LED is driven by a separate drive transistor. LEDs for CMT display are driven with appoximately 5mA each. LEDs for CMT keymat illumination are driven with approximately 2.5mA each.

CMT LCD
Mechanical structure LCD includes the frame, LCD cell with driver chip, reflector, adhesive tapes, and lightguide. The LCD is electrically connected to the UL2 PWB with a FPC and board­to­board connector.

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The frame includes clips to mechanically attach the display to the UL2 PWB and also keep LCD cell and lightguide in place. LCD cell specification The LCD cell includes the display driver.

PDA LCD Module .
PDA LCD circuit main blocks are LCD glass including drivers, PDA LCD bias voltage power circuit and a control IC.
Parameter Function

Display resolution Active area Dot pitch Display mode Frame frequency Colors
Display brightness

640 (x3) x 200 dots 107.52 x 33.6 0.168 x 0.168mm D­TFD, Color, Transmissive 51.5 Hz typical 4096 colors, 12­bit RGB
100nit (full brightness typical)

PDA LCD Backlight circuit
VB VBB BACKPWM DISPON
Control circuit Driver Piezo transformer CCFL

Figure 3.

Backlight Power Supply

The control circuit generates a square wave input to the piezo driver circuit. This signal is maintained at the resonant frequency of the piezo transformer. The driver is based around 2 FETs in Push­pull configuration. There is a single coil between the FETs and the piezo transformer. Both FETs are turned off while the CCFL is off during dimming (BACKPWM low). Issue 1 06/01

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The piezo transformer part is soldered onto a FPC with the CCFL.
Piezo transformer characteristic Input voltage Output power Output voltage Output current Operating current Operating frequency 8Vrms Max 1 W max 200 Vrms min 4.5mA 1.5mA nominal 130 +/­ 10 kHz Value

The CCFL lamp is 2.6mm outer diameter and 1.8 mm inner diameter Double tube.
CCFL lamp characteristic Operating frequency Starting Voltage Operating Voltage Tube current Operating current 150 kHz (typ.) About 500 Vrms 200 Vrms 1 mA min , 3mA max 1.5mA Value

PDA LCD Power circuit
PDA LCD power circuit generates the bias voltages necessary for the PDA display panel. Block diagram below. VCC

DY Flyback Regulator LCDPWM V0Y V5Y Swing Mode Regulator Data
Control ASIC

VCCY FRY YSCL XINH

Synchronisation

Figure 4. Block diagram of PDA Power Supply

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The flyback regulator generates a negative bias voltage (Nominally ­12V) from the battery voltage. The output of the flyback generator is temperature compensated and adjusted under software control. The control ASIC handles the refresh of data to the PDA display panel and the generation of synchronisation signals for the swing mode regulator.

Antenna connectors and ground plane
The RF­signal from the external antenna connector/switch on BL8 is fed to the antenna via a coaxial cable that is led through the hinge. The signal is fed to the antenna through a coaxial connector and an antenna clip which are placed on the UL2 PWB. The UL2 PWB includes the separate ground area that is required by the antenna.

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QWERTY Keyboard Module UL8
General
UL8 is the combined QWERTY keypad/flex connection module. The base flex is single­sided, so all the components are on the same side of the flex. Approximate component placement is shown below:

AF8 PWB

70 pin connector 5469145

50 pin connector 5469817

Figure 5.

Component placement

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AF8 PWB
AF8 is a small additional PWB to achieve "bulls eye" shaped pads for the earpiece and connection for the battery removal switch. (Check that the RAE-3 software supports the battery removal switch feature.) The approximate shape of AF8 is shown below. One 22pF SMD capacitor is assembled to the AF8.

Figure 6.

AF8 PWB

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