Panasonic X700 Service Manual

ORDER NO. PMCE041201C8

EB-X700 EB-X701

PROVISIONAL ISSUE

Digital Cellular Phone

900 MHz 1800 MHz 1900 MHz

Tx Frequency Range: 880 - 915MHz 1710 -1785 MHz 1850 - 1910 MHz Rx Frequency Range: 925 - 960 MHz 1805 -1880 MHz 1930 - 1990 MHz

Tx / Rx separation 35 MHz 75 MHz RF Channel Bandwidth 200 kHz Number of RF channels 174 374 Speech coding Full rate/Half rate/Enhanced Full rate

Operating temperature -10 °C to +55 °C Type Class 4 Handheld Class 1 Handheld Class 1 Handheld RF Output Power 2 W maximum 1 W maximum 1 W maximum Modulation GMSK (BT = 0.3) Connection 8 ch / TDMA Voice digitizing 13 kbps RPE-LTP / 13 kbps ACLEP / 5.6 kbps CELP / VSLEP Transmission speed 27

Signal Reception Direct conversion Antenna VSWR < 2.5 : 1

Dimensions (excluding antenna)

Volume 89 c c Weight 107 g

Main Display LCD, 176 x 208 pixels, 65,000 colours Sub Display LCD, 64 x 96 pixels, 56,000 colours

Illumination

Keys 21-key Keypad, Navigation key, 1 memo key SIM

External DC Supply Voltage

Battery 3.7 V nominal, 780mAh, Li-Ion Standby Time

Talk Time

Talk and standby time will be dependent on network conditions, SIM card, backlight usage and network condition.

Height: 97 mm Width: 49 mm Depth: 24 mm

16 LEDs for Keypad Backlighting (14 Blue & 2 White) 4 LEDs for LCD Backlighting (White) 2 LEDs for Sub LCD (White)

1.8 V & 3 V Plug-in type only

5.8 V

250 hrs 6 hrs

60 MHz

299

This service information is designed for experienced repair technicians only and is not designed for use by the general public. It does not contain warnings or cautions to advise non-technical individuals of potential dangers in attempting to service a product. Products powered by electricity should be serviced or repaired only by experienced professional technicians. Any attempt to service or repair the product or products dealt with in this service information by anyone else could result in serious injury or death.

Revision : 00

WARNING

2004 Panasonic Mobile Communications Co., Ltd.

distribution is a violation of law.

Limitation of Panasonic’s Liability

PROVISIONAL ISSUE

The contents in this Manual (and which otherwise may be included in product packaging) are provided "AS IS" without any warranty, express, implied, or otherwise. Panasonic Mobile Communication Co., Ltd. ("PMC"), for itself, PMC’s parent company, and PMC’s affiliates, factories, and licenso rs, disc la im s all warrant ies , wheth er ex pres s, imp lie d, or oth erwis e. This disclaimer includes, but is not limited to, implied warranties of merchantability, fitness for a particular purpose, noninfringement of intellectual property or other violation of rights, and any warranties arising from any course of dealing, usage or trade practice.

Commercially reasonable care has been taken to ensure that the contents of this manual give an accurate representation of the product(s). H o w eve r, PMC accepts no responsibility for inaccuracies which m ay o cc ur. PMC res erv es th e right, in its sole discretion, to m odi fy the content in this m an ua l w i th or without notice to You. PMC shall not be liable to You in connection with any such modification of the materials in this manual. The proprietary rights to the PMC content, programs and materials incorporated or provided herein are the property of PMC or other rights holders, such as PMC’s licensors. You may use this manual only for personal, non-commercial purposes ("Limited Use"). Except for the foregoing Limited Use, all other uses are prohibited, and other uses may constitute infringement of copyright and/or other proprietary rights.

All claims for enforcement, breach, or violation of responsibilities or rights shall be governed by the laws of Japan. Any claims under consumer protection laws, unfair competition laws, and in tort, shall be governed by the laws of the country of Your residence. PMC has no liability or obligations to you or any other party for claims that are disclaimed herein or are otherwise beyond PMC’s reasonable control. In the event that any provision is held to be unenforceable, then the remaining provisions will remain in full force and effect, and the unenforceable provision will be replaced with an enforceable provision that most closely approximates the intent and economic effect of such severed provision. All controversies and disputes arising out of or relating to this manual shall be submitted to the Tokyo District Court in Tokyo, Japan as the Court of first instance. You hereby irrevocably consent to the exclusive jurisdiction of such Court. Any failure by PMC to exercise or enforce its rights under the Terms of Use shall not constitu te a wai ve r of such righ ts.

"Panasonic" is a registered tradema rk of Mat sush ita Ele ctric Indu strial Co., Lt d. ("MEI"), PMC ’s parent company. Neithe r Your purchase of this Panasonic product nor Your use of any related materials, including this manual, constitutes a grant of any license to use the Panasonic or related marks, names, or logos.

The information contained in this manual or other materials provided with product packaging and all rights in any design(s) disclosed therein, are and remain the exclusive property of PMC or its licensors. The technology contained in the product and/or required for proper operation of the product may be owned by PMC, its parent company, or PMC’s affiliates, factories, or licensors or may be used under license arrangements with licensors or other organizations. No use or other rights, other than the use of the product as intended, is granted or intended.

Comments or correspondence concerning this manual should be addressed to: Panasonic Mo bile Communications Co., Ltd. 600, Saedo-cho, Tsuzuki-ku, Yokohama, 224-8539, Japan

- i -

1. INTRODUCTION

PROVISIONAL ISSUE

WARNING

The equipment described in this manual contains polarised capacitors utilising liquid electrolyte. These devices are entirely safe provided that neither a short-circuit nor reverse polarity connection is made across the capacitor terminals. FAILURE TO OBSERVE THIS WARNING COULD RESULT IN DAMAGE TO THE EQUIPMENT OR, AT WORST, POSSIBLE INJURY TO PERSONNEL RESULTING FROM ELECTRIC SHOCK OR THE AFFECTED CAPACITOR EXPLODING. EXTREME CARE MUST BE EXERCISED AT ALL TIMES WHEN HANDLING THESE DEVICES.

WARNING

A Naphthalene-based resin paste is used to bond underfill components on this phone. When heated, this paste may give off traces of Naphthalene.

Therefore, it is recommended that work on the PCB be carried out in a well-ventilated area, especially when using hot air blowers or soldering irons.

The following components are bonded using the paste: OMAP310 (U200) ; S-Gold (U100) ; Bluetooth IC (U201)

Caution

The equipment described in this manual contains electrostatic devices (ESDs). Damage can occur to these devices if the handling procedures described in Section 4 are not adhered to.

Caution

This equipment may contain an internal battery in addition to the external battery packs. These batteries are recyclable and should be disposed of in accordance with local legislation. They must not be incinerated, or disposed of as ordinary rubbish.

1.1. Purpose of the Manual

This Service Manual contains the information and procedures required for installing, operating and servicing the Panasonic GSM Personal Cellular Mobile Telephone system operating on GSM Digital Cellular Networks.

1.2. Structure of the Manual

The manual is structured to provide service engineering personnel with the following information and procedures:

1. General and technical information - provides a basic understanding of the equipment, kits and options, together with detailed information for each of the major component parts.

2. Installation and operating information - provides instructions for unpacking, installing and operating the equipment.

3. Servicing information - provides complete instructions for the testing, disassembly, repair and reassembly of each major component part. Step-by-step troubleshooting information is given to enable the isolation and identification of a malfunction, and thus determine what corrective action should be taken. The test information enables verification of the integrity of the equipment after any remedial action has been carried out.

4. Illustrated parts list - provided to enable the identification of all equipment components, for the ordering of spare/replacement parts.

1.3. Servicing Responsibilities

The procedures described in this manual must be performed by qualified service engineering personnel, at an authorised service centre. The service engineering personnel are responsible for fault diagnosis and repair of all equipment described in this manual.

– 1-1 –

2. GENERAL DESCRIPTION

Unless stated otherwise, references in this manual to X700 also apply to X701.

PROVISIONAL ISSUE

2.1. General

This section provides a general description and kit composition details for the Digital Cellular Phone and optional kits.

2.2. Telephone Handset Main Kit

12 3

Figure 2.1: Telephone Handset Main Unit Kit Contents

Item Description Model Number

1 Main Unit EB-X700 2 Battery, Standard EB-BSX700EU

EB-BSX700US EB-BSX700CN

3 Travel Charger EB-CAX70EU

EB-CAX70US EB-CAX70CN EB-CAX70UK EB-CAX70AU

2.3. Features

The Panasonic Phone Model EB-X700 and EB-X701 are high performance, small, light, telephone handsets for business and domestic use on General Packet Radio Service (GPRS) running on GSM networks. The following features are provided:

• Triple Band, EGSM 900, GSM 1800 and GSM 1900 operation.

• Triple Rate, which includes Full Rate, Half rate and Enhanced Full Rate (EFR) speech, codec.

• GPRS-compatible (Class 10).

• 65,000-color Thin Film Transistor (TFT) Main Display and 56,000-colour LCD Sub-Display.

• Integrated Digital Camera.

• Multimedia Message Service (MMS) and Short Message Service (SMS) messaging.

• POP3-compliant email client.

• Tegic T9 Text Entry.

• Bluetooth connectivity.

• Infrared communications port (IrDA).

• Voice Recorder.

• WAP 2.0 and WAP 1.2.1 compliant Browser.

• Backup Battery.

• 40-voice polyphonic ringtones.

• Downloadable pictures, animations and polyphonic melody ring tones.

• Clock, Calculator and Unit Converter.

– 2-1 –

3. OPERATING INSTRUCTIONS

PROVISIONAL ISSUE

3.1. General

This section provides a brief guide to the operation and facilities available on the telephone handset. Refer to the Operating Instructions supplied with the telephone for full operational information.

3.2. Controls and Indicators

Left Softkey

- Perform action named in lower left of display.

- Shortcut to open preset application in standby mode.

- To lock the keypad, press , then press .

- To unlock the keypad, press , then press .

Edit Key

- Select Dictionary for predictive text including insert and edit word, or alpha mode or number mode.

- Insert numbers and symbols.

- Change writing language.

- Mark multiple items in a list.

Send Key

- Make a call.

- Recall recently dialled numbers.

- Press and hold in standby mode to activate Voice commands.

Send Key

- Make a calls.

* Key

- In standby mode, press and hold to switch Photolight on or off.

- In edit mode, press to open special character table.

- In numeric and standby modes, press repeatedly for *, p, w, and + characters.

- In dictionary mode, scroll to other word choices when word is underlined.

Applications Key

- Enter the main applications menu area.

- Return to standby mode.

- Press and hold to view currently open applications.

Navigation Key

- Press outside edges to scroll up , down , left or right to move through menus and text.

- Press canter to select option.

- Take a picture in Camera mode by pressing .

Right Softkey

- Perform action named in lower right of display.

- Shortcut to open preset application in standby mode.

Clear Key

- Erase character in edit mode.

- Delete highlighted entered item.

End Key

- Ends call. Return to standby mode.

Silent Mode Key

- From standby mode, press and hold to switch Silent mode on/off.

- In edit mode, shift to upper and lower case letters, or press twice briefly to turn on/off Dictionary for predictive text.

Power Key

- Press and hold to switch phone on or off.

- Press to choose different ringtones, lock the keypad, lock the phone, or eject miniSD card.

Zero Key

- In standby mode, press and hold to enter + character for dialling.

- In edit mode, enter space.

Left Softkey

Edit Key

Send Key

Application

Key

* Key

Browser Key

Microphone

Figure 3.1: Phone overview; Open-view

Earpiece

Main Display

Right Softkey

Navigation Key Clear Key

End Key

Silent Mode / # Key

Power Key Zero Key

− 3-1 −

Camera Lens

PROVISIONAL ISSUE

Multibutton

Infrared Port

miniSD Card

Pocket

Camera Lens

- Point at subject of photo.

Multibutton

- From external display, turns on backlight for 15 seconds, or if backlight is already on, brings up status icons.

Personal Handsfree and TTY Connector

Indicator Light and Photolight

External Display and Viewfinder

- Turns off ringer during an incoming call.

- Take a picture.

Infrared Port

- Transfer data between the phone and other devices with an infrared connection.

Accessory Connector

- Plug in most EB-X700 accessories here.

Personal Handsfree and TTY Connector

- Plug in Personal Handsfree Headset and TTY accessory here.

Indicator Light

Accessory Connector

- Remains on during charging.

- Flash to indicate incoming calls.

Photolight

- In standby mode, press and hold to switch Photolight on or off.

External Display and Viewfinder

- Displays clock. Press Multibutton twice to view status icons.

- In Camera mode, acts as viewfinder if flip is closed.

Figure 3.2: Phone Overview; External View

− 3-2 −

3.3. Liquid Crystal Displays

PROVISIONAL ISSUE

The telephone handset has two liquid Crystal Displays - a colour display for main operation and a colour sub-display for a quick review of phone status.

Signal strength

icon

Wallpaper

Left Softkey

selection area

Network that phone is currently using

Time

Network name

Main Display

Battery charge level icon

Date

Right Softkey selection area

Network that phone

is currently using

Signal strength

Phone Status

icon

Phone Status

Sub-Display

icon area

Network name

Time and date area

Battery charge level icon

icon area

Figure 3.3: Main & Sub Liquid Crystal Displays

3.4. Alpha Mode Entry

3.4.1. Character Set / Key Assignments

Alpha Mode entry is used to enter alphanumeric characters in to the Phonebook, Short Messages and Greeting Message areas. Each time a key is pressed, it will display the next character. When another key is pressed, or no key is pressed for a short time, the cursor will move to the next position. In alpha mode choose from:

First letter capital All capitals Lower case

To enter symbols, press Edit key and select Insert symbol.

To enter text at a flashing cursor:

1. Press the number keys associated with the planned letters repeatedly until the planned letters appear on screen.

2. Editing actions for each key and shortcuts:

Enter space. Enter punctuation by pressing repeatedly. Erase a character. Press and hold to switch between text and

number modes.

Press to scroll through upper case, lower case,

and first letter capital mode.

Switch to number mode. Insert symbols. Change writing language.

Press outer edges to scroll up, down, left, and

right through text.

3.4.2. Editing Alpha Entry

Press outer edges to scroll up, down, left, and right through text. Pressing will delete the character to the left of the cursor.

− 3-3 −

3.5. Features Menu Structure

PROVISIONAL ISSUE

Note that some features are SIM and/or Network dependent.

Games N/A Games

More Games (games under ’Extras’ menu) Micro Golf Micro Golf Balloon Headed Boy Ballon Headed Boy More Games

Vodafone live! Orange Menu N/A

Vodafone live! Orange World Enter URL Backup Bookmarks Update What’s New Help Games SIM Tool Kit Ringtones PacketVideo Pictures Themes News Sports Media Album

Applications Extras Tools

Postcards QuickOffice Calculator SIM Tool Kit Calculator Converter App. Manager Micro Golf Notepad Calculator File Manager Rec or der Converter Converter To-Do Recorder Ballon Headed Boy miniSD File Manager Help App Manager QuickOffice Recorder File Manager Photobase Voice Commands ...Conversatio ns Photolight (Flashli ght ) RealOne Player ...Friends SIM Tool Kit (if applic ab le) Shortcuts ...Chat Rooms Help Notepad

Messages Messaging Messages

Create Message Inbox Drafts ...Write Message ...Write Message Sent ...Inbox ...Inbox Email Inbox ...Documents (My Folders) ...Documents (My Folders) Vodafone Messenger ...Mailbox ...Mailbox Voicemail ...Drafts ...Drafts My Folders ...Sent items ...Sent items Media Album / Live! Studio ...Outbox . .. O utb ox Outbox ...Delivery Repo rt ...Delivery Report Delivery Report

Camera Camera Camera Take Picture (lauches Camera app) (lauches Camera app) Record Video Photolight

My Items Media Media Pictures Gallery Media Gallery

….GMS Pictures ……….individua l pi c ture file (uncorrupte d) created - process ing ) ……….individual picture file (uncorrupted ) ……….individual picture file (uncorrupted) ……….individua l pi c ture file (corrupted) ….MMS background images ….Wallpaper ….MMS background images ….MMS background images

Sounds

…Digital Tones ……..individual aud io file … . individual video file ….individual vid eo fi le …Simple Tones ……..individual aud io file … . individual audio file ….individual audio file

Videos Photobase Real One

….individual vi deo file

Organiser Calendar Calendar

Calendar (Launches Calendar app) (Launches Calendar app) Alarm Clock To-Do Notes

odafone Orange

Chat

To-Do Photolight (Flas h li ght)

Voice Mail Voice Mail Messages Messages

Chat Chat

...Conversations ...Conversations ...Friends ...Friends ...Chat Rooms ... Chat Rooms

Pictures Pictures

….GMS Pictures ….GMS Pictures

processing) processing) ……….individual picture file (corrupt ed) ……….individual picture file (corrupted)

….wallpaper ….wallpaper

Videos Videos

Sounds Sounds

RealOne Photobase Video Recorder Video Recorder

eneric

Help

Figure 3.4: Features Menu Structure (continued on next page)

− 3-4 −

Contacts Address Book Contacts

PROVISIONAL ISSUE

Contacts List (Launches Contacts app) (Launches Contacts app) Create Contact Call Log Speed Dial

Settings Settings Settings Profiles Ringtones Ringtones Themes Phone Themes General

...Phone ...Call ...Device ...Call ...Connection ...Call ...Date & Time ...Date & Time ...Connecti on ...Connection ...Security ...Date & Time ...Security ...Call Divert ...Security ...Call Diverts ...Barrings …Call Divert ...Call Barring ...GSM Network ...Barrings ...Network ...Accessories ...GSM Network ...Enhancement

Connectivity Themes Clock

...Infrared SpeedDial SpeedDial ...Bluetooth App Manager Voice Commands ...Modem Clock About ...Conn Mgr Voice Mail ...SyncML Voice Commands ...Dev Mgr About ...Conn Test ...USB

miniSD Voice Commands About N/A Connectivity Connectivity

(Connectivity options under 'Settings' menu

VF Messenger N/A N/A

Conversations (Chat found under 'Messaging' menu) (Chat found under 'Messages' menu) Friends Chat Rooms

Shortcuts Favourites Favourites

Inbox Notes Notes Notes Calendar Calendar Calendar Inbox Inbox Vodafone Live! Download more games Ringtones Download more ringtones Pictures Download more pictures Games Download more videos

N/A Browser N/A

(Browser found under 'Vodafone Live!' menu) portal)

N/A

(Call Logs found under 'Contacts' menu)

N/A N/A QuickOffice

(QuickOffice found under 'Applications' menu) (QuickOffice found under 'Options' menu)

…Device

miniSD

Bluetooth Browser Infrared Operator FaxModem Bluetooth Conn Mgr Infrared SyncML SyncML Dev Mgr De v Mg r USB Conn Mgr

Download more applications

Call Logs Call Logs

Call Register Call Register Call Timers Call Timers GPRS Counter GPRS Counter

General Settings

...Accessories

FaxModem USB

(Browser found under 'Connectivity' menu)

(Launches QuickOffice app)

Figure 3.5: Features Menu Structure

− 3-5 −

3.6. IMEI and Software Identification

PROVISIONAL ISSUE

To check the IMEI number of the phone:

Press: * # 0 6 #

To identify the software version installed on the phone:

Press: * # 9 9 9 9 # within five seconds of switching on.

3.7. SIM Personalisation

3.7.1 Introduction

SIM personalisation wil l li mi t the us e of t he te lep ho ne to a s ing le SI M, a SIM s up pli ed b y o ne Ne twork/ Sub-net w ork / Serv ice Provider or a SIM purchased by a company (corporation). If a personalised handset contains a SIM that is from a different source, it will d isplay the messag e “SIM ERROR” when switch ed on. This perso nalisation is sometimes ref erred to as SIM lock or SIM latch.

3.7.2 Testing

To test a personalised handset when the user has not supplied the SIM, a SIM configured for test purposes (e.g. test SIM or soft SIM) should be used. The mobile will recognise that the SIM is for testing purposes only and operate as normal.

3.7.3 Personalisation Function

Personalisation is activated during manufacture. Enabling / disabling is available by entering a special key sequence immediately af ter pow er on . Once the enabl e / disable men u is s hown it i s p ossible to s elec t the ty pe of pe rso nalis ation. When personalisation is enabled it is only possible to disable it if the mobile contains a SIM and the 8 or 16 digit Control Key (CK) is known. For security reasons, when CK is enabled, it cannot be read by the user.

There are two special key sequences to enter the enable / disable menu:

Key Sequence

Notes

Can only disable personalisation

Can both enable and disable personalisation

3.7.4 Disabling Procedure

1. Press

2. Scroll up / down "SIM" for SIM Personalisation

"Network" for Network Personalisation "Sub-Network" for Sub-Network Personalisation "ServiceProvider" for Service Provider Personalisation, or "Corporate" for Company Personalisation.

3. Press

4. Enter the 8 or 16 digit Control Key and press

5. Confirm by entering the 8 or 16 digit Control Key again and press

to select:

The display will confirm which type of Personalisation has been disabled.

− 3-6 −

3.7.5 Enabling Procedure

PROVISIONAL ISSUE

1. Press

2. Scroll up / down

"SIM" for SIM Personalisation "Network" for Network Personalisation "Sub-Network" for Sub-Network Personalisation "ServiceProvider" for Service Provider Personalisation, or "Corporate" for Company Personalisation.

3. Press

4. Enter the 8 or 16 digit Control Key and press

5. Confirm by entering the 8 or 16 digit Control Key again and press

The display will confirm which type of Personalisation has been enabled.

to select:

− 3-7 −

4. TECHNICAL DESCRIPTION

PROVISIONAL ISSUE

4.1. RF Overview

4.1.1 General Specifications

The telephone is a triple band product incorporating three switchable transceivers, GSM 900 (EGSM 900) band, GSM 1800 (DCS 1800) band, and GSM 1900 (PCS 1900) band. The transmit and receive bands are given in the table below:

Tx Rx

EGSM 900 880-915 MHz 925-960 MHz DCS 1800 1710-1785 MHz 1805-1880 MHz PCS 1900 1850-1910MHz 1930-1990MHz

Other notable technical features are as follows:

EGSM 900 GSM 1800 G SM 1900

Rx Bandwidth 35 MHz 75 MHz 60MHz Tx Bandwidth 35 MHz 75 MHz 60MHz Duplex Spacing 45 MHz 95 MHz 80MHz Number of Channels 174 374 299 ARFCN (Channel Numbers) 975 - 1023 512- 885 512 - 810

0 - 124

1st Tx Channel 880.2 MHz 1710.2 MHz 1850.2MHz

(Ch 975) (Ch 512) (Ch 512)

Last Tx Channel 914.8 MHz 1784.8 MHz 1909.8MHz

(Ch 124) (Ch 885) (Ch 810)

1st Rx Channel 925.2 MHz 1805.2 MHz 1930.2MHz

(Ch 975) (Ch 512) (Ch 512)

Last Rx Channel 959.8 MHz 1879.8 MHz 1989.8MHz

(Ch 975) (Ch 512) (Ch 810)

Maximum calibrated Tx Power, Voice Call 32.25 dBm 29.25 dBm 29.25 dBm

(Class 4) (PL5) (Class 1) (PL0) (Class 1)

Minimum calibrated Tx Power, Voice Call 5.0 dBm 0.0 dBm 0.0 dBm

(PL19) (PL15) (PL15)

4.1.2 Description of PCBs

The handset, which is in the form of a clamshell, contains three printed circuit boards. The main PCB is based on an 8 layer methodology, constructed using ALIVH-G material. It carries all the RF components on the top half and the baseband components (Logic circuits) on the lower half. The key pad is mounted on the reverse side of the main PCB. The RF circuit area is shielded by two metal screens. One compartment contains the Antenna Switch Module (ASM), Power Amplifier Module (PAM), TX SAW filter and limiter amplifier. The other shielded compartment contains the transceiver IC (Smarti-DC +), TCXO, 3rd Harmonic (H3) filters, and the RX SAW filters. The logic and Bluetooth circuits are shielded by one screen each. The second PCB is a flexible printed circuit. One side of its assembly consists of all the components and connectors required for the sub LCD module, camera and main display. The third is a 4 layer PCB constructed using FR4 material. This board contains the mini-SD and SIM card holders, as well as the vibrator.

− 4-1 −

4.1.3 Bl ock Diagram

PROVISIONAL ISSUE

Figure 4.1: RF Block Diagram

4.1.4 Frequency Plan

Rx: 925 - 960 MHz

RFLO VCO

3520 - 3840 MHz

Tx: 880 - 915 MHz

1/4

I, Q output to

baseband

925 - 960 MHz

880 - 915 MHz

I, Q output from

baseband

Rx: 1805 - 1880 MHz

RFLO VCO

1/2

3420 - 3760 MHz

Tx: 1710 - 1785 MHz

Figure 4.2: Frequency Plan

I, Q output to

baseband

1805 - 1880 MHz

1710 - 1785 MHz

I, Q output from

baseband

Rx: 1930 - 1990 MHz

3700 - 3980 MHz

Tx: 1850 - 1910 MHz

1/2

I, Q output to

baseband

1930 - 1990 MHz

1850 - 1910 MHz

I, Q output from

baseband

4.1.5 Synthesiser

The transceiver IC U500 is capable of supporting quad-band operation (GSM 850, EGSM 900, DCS 1800, and PCS 1900), but X700 only supports EG S 900 , DCS 1800 , an d PCS 190 0. G SM 850 is n ot used . The transceiver IC has a synthesizer and VCO for generating appropriate signals for the transmitter and receiver. Channel data is transferred to U500 from the baseband IC by three-wire bus (Data, Clock and Strobe). Signal output is divided by 4 for EGSM 900 and by 2 for DCS 1800/

PCS 1900. Synthesizer lock time is approximately 130 µs. An external TCXO is used to generate a 26 MHz reference signal for the transceiver and logic blocks. Automatic Frequency Control (AFC) is employed to maintain stability over changes in temperature.

− 4-2 −

4.1.6 Antenna

PROVISIONAL ISSUE

The antenna is a fixed helical type and is designed for a triple band operation (EGSM 900, DCS 1800 and PCS 1900).

4.2. Transmitter

4.2.1 Functional Description

Figure 4.3: Transmitter Block Diagram

The transceiver IC U500 supports quadrature modulation and employs direct modulation. The differential I/Q inputs from thebaseband circuit are up-converted to the transmit frequency by the quadrature modulator. The required signal path is selected (EGSM 900 or DCS 1800/ PCS 1900). The transceiver output level is approximately 0 dBm.

The modulated outputs pass through third harmonic filters, FL500 and FL501, to the quad band limiter amplifier U501. In EGSM operation, the differential outputs from the limiter amplifier pass into the TX SAW filter where they are converted into a single-ended signal. The SAW filter also attenuates the Tx noise. In the case of PCS and DCS, the differential to singleended conversion takes place in the limiter amp and the output is passed into the input of the PAM U503. The PAM contains an integrated power control function and therefore does not require any additional external components to implement the Automatic PowerControl (APC) loop. The TX output from the PAM is applied to the ASM U502 which provides a connection path via the RFconnector to the external antenna.

− 4-3 −

4.3. Receiver

PROVISIONAL ISSUE

4.3.1. Functional Description

ANTENNA

U502

ANTENNA

SWITCH

MODULE

FL502

SAW

FILTER

FL503

SAW

FILTER

FL504

SAW

FILTER

QUAD BAND TRANSCEIVER

LNA

GSM 850

1/4

LNA

EGSM 900

LNA

DCS 1800

1/2

LNA

PCS 1900

VCO

U500

PGA AMP

BASSBAND LOW PASS

FILTER

IR IRX

QR QRX

Figure 4.4: Receiver Block Diagram

The main building block for the receiver is the transceiver IC U500 which includes a direct conversion receiver with in-phase and quadrature demodulation. The antenna passes the received signal to the antenna port of the Antenna Switch Module U502. The U502 switches the signal to the corresponding receive port (EGSM 900, DCS 1800 or PCS 1900). The unbalanced output signal from the U502 is routed through a 50 ohm PCB trace to the appropriate Rx SAW filter, FL502, FL503 or FL504. The SAW filter converts the unbalanced signal to a balanced signal and also attenuates any out-of-band blocking signals. The balanced output from the SAW filter are routed through 75 ohm balanced PCB traces to the LNA input of the transceiver U500. A balanced matching network has been provided between the Rx SAW output and the LNA input in order to provide an optimum LNA noise figure (NF). The output of the LNA is then converted directly to baseband frequency by a quadrature demodulator mixer. The local oscillator (LO) signal presented to the mixer is provided by an internal VCO and it's frequency is either divided by four (EGSM 900) or by two (DCS 1800 and PCS 1900) before reaching the mixer. After the RF signal is converted into a baseband signal, the resulting in-phase and quadrature signals are fed into two baseband low pass filters. These filters provide suppression of in-band blocking signals and adjacent channel interferers. The passband of the filters is optimized for low group delay ripple. The baseband signal is then amplified by a Programmable variable Gain Amplifier (PGA) within U500. The in-phase and quadrature baseband signals are then offset to a DC offset level of 1.35 V.

– 4-4 –

4.4. Baseband Overview

PROVISIONAL ISSUE

4.4.1 Introduction

The X700 architecture consists of two main sections; a GSM Modem to handle the speech coding and air interface protocol, and an Applications Processor to provide the MMI, peripherals support and to execute software applications. Here the GSM Modem is described, also commonly known as the Baseband section:

The functionality of the GSM Modem is primarily implemented by the Infineon S-Gold ASIC (PMB8870), supported by the Infineon Power Management IC (PMIC) called S/M-Power (PMB86811), with functionality extended by the Panasonic Companion IC (AN32061A). The PMIC and the Companion IC are discussed separately in a later section.

S-Gold’s Baseband circuits in the X700 architecture perform the following functions:

GSM Channel Equalization

•GSM Channel Coding / Decoding

•Speech Coding / Decoding

•GPRS (Packet) Support

•Data Encryption

•Basestation Synchronization & Frequency Locking (AFC)

•RF Scheduler and Transmit Power Control

•Real Time Clock (for Day/Date & Idle-Mode Power Saving)

•Audio and Tone Synthesis/Generation (except Ring-Tones, Music & Audio Samples)

•PCM Audio Routing to/from Application Processor & Bluetooth Module

•SIM Interface and Management

•Power Supply and Battery Management (including Charging)

•PWM Generation (Control of the Main & Sub-Display Backlights, and Camera Photolight Intensity)

•IPC Communication with the Application Processor (running the Man-Machine Interface)

•Provision of Application Processor 13MHz Clock, Reset and Handshaking Signals

•Miscellaneous Support (Clamshell Flip Sensor, Headset Detect & HS Send/End, Battery Temperature)

The GSM Modem (S-Gold) can be viewed as a module, performing the aforementioned tasks, generally under the control of the Application Processor. S-Gold executes its own locally stored code from 4MB of Flash, with 1MB of SRAM provided in a stacked Flash & RAM package to save PCB area. S-Gold receives instructions at UART1 from the ApplicationProcessor via the Primary Inter-Processor Communication (IPC-PRIMARY) serial link. The Application Processor is discussed separately.

At phone power-up, S-Gold boots from its external Flash memory, initializes the Modem as a whole into an idle state, and supplies the divided-by-2 system clock to the Application Processor, which then boots-up after reset is released by S-Gold. Once the Application Processor has booted, it then takes overall control of the entire system.

− 4-5 −

Application

PROVISIONAL ISSUE

Proccessor

RST_OUT

USB I/F

UART3 I/F IRDA_SD

SD/MMC I/F SD_SW1

VSIM1

VSIM_SW

UART1 IPC_GPIO AP_CLK_REQ LOW_PWR McBSP1 McBSP2

32KHz

AP_RST AP_WAS_RSR

UART2

IrDA

SD Card

FLASH

4MB

SRAM

1MB

SIM

Flip Sensor

IPC

32KHz

CLK32K

GPIO86 EINT0

VLSD

EBU I/F

(CS0,CS1)

CC_VZ_N

SIM I/F

OP_DET

UART1

CC2CC3IO

I2S2

SSC0

CLKOUT1

VDD_RTC2

USART0

CC0CC4 IO (KP_IN4)

KP_OUT2

RTC

POAKOUT1 KP_IN0

Modem

Proccessor

DIF_D4 DIF_D3

SOAKOUT0

M8 M9 M2 M1

DIF_D5

MICP2/N2

EPREF

EPPA1/2

MICP1/N1

EPP1/N1

CC1CC4IO CC1CC0IO CC1CC2IO

VBATT CURRENT BATT_TEMP RF_TEMP

CIC_IRQ

HH MIC

HH SPK

I2C

Vmain

RTCONT PM_INT NRESET

VCXO_EN RF I/F F26M

/HS_DET HS_SND_ENDKP_IN6 BT_CLK_PU BT_RST

I2S1

PWM_MAIN PWM_SUB PWM_FLASH

VINT

LOW_PWR

LRF3_EN

COMPANION

PMIC

USB

UART3

USART0

VDCDC

VBATT Vmain

VDD_RTC3

VDD_RTC2

VLSD

VLBB3

HS_SND_END

BATT_TEM

HF SPK

VBUS

EXT_PWR

VIB SLED1 SLED2 LED VRF1 VRF2 VRF3

HS_MIC HS_SPK

/HS_DET

RF_TEMP

I/O CN

Mono HS

Battery

840 mAh

EXT_PWR

Paging LED Alert LED Keypad LED

VACC

VBUS

VBATT

VACC

Vmain

VRF1

VRF2

BT_CLK

BT_CLK_REQ

Bluetooth

VRF3

Figure 4.5: Baseband Block Diagram

4.5. Modem

4.5.1. Base-Station Synchronisation & AFC

The Modem attempts to locate valid network service by monitoring the received RF signals to "camp-on" an available network. In this "Idle" mode the Modem only receives at precise intervals (paging channel time slots), listening for incoming voice calls and data packets; at all other times the Modem RF sub-system is powered-down to conserve battery life. The base-station network signals to the Modem the exact intervals at which any incoming transmission may be expected. Frequency tuning (channel selection and frequency-drift correction) is achieved by the Automatic Frequency Control system by slightly adjusting the frequency of the 26 MHz Voltage-Controlled Temperature-Compensated Crystal Oscillator (the VCTCXO is located in the RF section and not shown in the block diagram above). The VCTCXO is the master clock reference from which the RF frequencies are generated and most of the Modem logic is clocked, and is located in the RF section of the design, having the part reference Y500.

– 4-6 –

4.5.2. RF Scheduler and Transmit Power Control

PROVISIONAL ISSUE

S-Gold has a GSM System Interface Block which incorporates in hardware a GSM Timer which is programmed by the Modem software to activate sections of the RF sub-system when required for reception during the paging channel timeslots, and an RF Ramp Controller which additionally switches-on and ramps-up the transmit RF power amplifier when in a voice call sending data packets. By only activating the necessary parts of the system when required, battery life is extended considerably. The table below shows how these circuits are connected:

System Timer Signal Name Description Notes

T_OUT0 TX_ON_PA TX Power Amp

On/Off Control

T_OUT1 TX_ON_DRV Alternate source for

Driver Enable, primary source is

SmartiDC+. T_OUT2 VC1 Antenna Switch Control 1. T_OUT3 VC2 Antenna Switch Control 2. T_OUT4 VC3 Antenna Switch Control 3. T_OUT5 Not currently connected. T_OUT6 (R) (MODE) Future use for EDGE. Reserved - Not currently connected. T_OUT7 BAND_SELECT Alternate source for

Band Select, primary

source is SmartiDC+. T_OUT8 (R) (TX-EDGE) Future use for EDGE. Reserved - Not currently connected. T_OUT9 Not currently connected. T_OUT10 Not currently connected. T_OUT11 BT_CLK_REQ Used as GPIO for When BT module powers up, the

Pull Up. BT_CLK_REQ is an input with weak pulldown.

This PU is needed to provide the clock to BT module to boot-strap the clock enable. Used as a GPIO function only.

T_OUT12 (R) (CRAM_MODE) Future use for CRAM GPIO function – not currently connected.

mode selection.

4.5.3. Real Time Clock (RTC)

The Real Time Clock block (located inside S-Gold) performs several functions. It is used to time the intervals between paging slots when the handset is otherwise shut-down, to save power, and also to maintain the current date and time. Since the RTC Block is clocked by its own low frequency (32,768 Hz) crystal, it consumes very little power, and is relied upon to keep track of elapsed time whenever the handset is in power saving mode (when the main 26 MHz VCTCXO is switched-off). Prior to being used to accurately time successive paging slots, it is calibrated against the very accurate 26 MHz VCTCXO to ± 1 count (± 1/32768 s), thus allowing a low-cost low-accuracy crystal to accurately time short intervals.

The Power Management sub-system (discussed separately) incorporates a small 3V battery (button-type cell) which is kept charged to allow the RTC to continue to maintain the current date and time during recharging or replacement of the main handset battery. A 2.1 V regulator then provides a constant voltage to the RTC Block, with the 3V battery voltage providing sufficient headroom for the battery to discharge over while providing the required RTC back-up time.

4.5.4. Audio & Tone Synthesis/Generation

The DSPs inside S-Gold also generate the DTMF (Dual-Tone-Multi-Frequency) signalling tones used to communicate over the air interface with the POTs network or other equipment, in addition to performing voice encoding & decoding, and channel encoding & decoding. The Modem S-Gold also incorporates an analog audio block, which provides an analog electrical interface for connecting the microphone, speakers and headset to. Note that the audio transducers are actually indirectly connected via the Power Management Block, since this allows multiple audio transducers to be multiplexed to S-Gold, and for the signals to the speakers to be buffered and amplified.

– 4-7 –

4.5.5. PCM Audio Routing to/from Application Processor & Bluetooth

PROVISIONAL ISSUE

Although the Modem handles the speech audio to and from the microphone and handset / hands-free loudspeakers, MP3decoding, voice-recognition, high-quality ring-tones and other synthesised audio are handled or generated by the Application Processor. These are passed between the Modem and Application Processor via the dedicated digital PCM bus called IPCAUDIO (Inter-Processor Communication - Audio). This is a 4 line bus (IPCAUD-CLK, IPCAUD-TX, IPCAUD-RX and IPCAUDSYNC), with the Modem always being the IPCAUD Bus Master. Various sample rates are supported, depending upon the quality of the audio, from 8kSamples/s to 48kSamples/s.

Bluetooth audio support is also provided by the separate, highly-integrated Bluetooth ASIC (U504). Audio at Samples/s is passed between S-Gold and the Bluetooth ASIC in digital PCM format via PCM-CLK, PCM-IN, PCM-OUT and PCM- SYNC. The Bluetooth ASIC is always the PCM Bus Master.

4.5.6. Subscriber Identity Module (SIM)

The Modem supports the SIM Card (Subscriber Identity Module) interface. The Power Management Sub-System has been designed to provide 2.8 V or 1.8 V supplies to the SIM, although the software may only support 2.8 V SIMs. The power to the SIM can be switched off by S-Gold's CC_VZ_N output, which allows additional power savings, while the rest of the Modem remains powered-up and operational.

4.5.7. Power Supply and Battery Management (inc. Charging)

The Modem handles the battery charging algorithm, which is started when a charger is inserted into the handset. It also provides an indication of the battery voltage (and hence an estimate of the remaining capacity) for display to the User. It automatically switches between fast charging and trickle charging (battery full maintenance).

4.5.8. PWM Generation (Main & Sub-Display Backlights & Photolight)

Since S-Gold incorporates a set of Capture-Compare (CAPCOM) functions, these are utilised to produce Pulse-WidthModulated digital logic-level outputs, each with a variable duty-cycle. These outputs can be used to vary the intensity of the LCD backlights, and operate at a high frequency with an increasing proportion of the time at a high logic level corresponding to an increased drive provided to each respective backlight:

The PWM signal controlling the brightness of the Main LCD backlight is provided by CC1CCIO4; The PWM signal controlling the brightness of the Sub LCD backlight is provided by CC1CCIO0; The PWM signal controlling the brightness of the Camera Photo-light is provided by CC1CCIO2.

The camera photolight is provided in the handset so that images may be captured at low light levels. The Photolight drive level is variable so that the appropriate amount of illumination may be selected for the best quality low-light image capture.

4.5.9. IPC Communication

The Modem and Application Processor systems communicate via the asynchronous serial IPC-PRIMARY bus (Inter-Processor Communication - Primary), over lines IPCPRI-TX, IPCPRI-RX, IPCPRI-RTS and IPCPRI-CTS.

4.5.10. Application Processor Clock, Reset & Hand-shaking

In the EB-X700 architecture, the Modem is responsible for providing the Application Processor with a 13 MHz clock, and the necessary reset and control handshaking signals. At initial power-up, the Modem (S-Gold) boots itself, while holding the Application Processor in reset. After a short time, the Modem provides the 13 MHz clock to the Application Processor, and releases the reset line (AP-RST). The Application Processor then boots, and assumes control of the handset (including the Modem).

A handshaking mechanism is provided to allow the Application Processor to signal to the Modem that it no longer requires the 13 MHz clock (via line AP-CLK-REQ), allowing the Modem to switch-off the VCTCXO for power-saving, if the Modem also does not require the system clock.

A further hand-shaking mechanism is provided for the Application Processor to signal to the Modem that an error and reset event occurred in the Application Processor, requiring an overall system reset to recover (via line AP-WAS-RST). This allows the handset to take the appropriate automatic reset and reboot action necessary to return functionality to the User.

– 4-8 –

4.5.11. Miscellaneous Support

PROVISIONAL ISSUE

The Flip Sensor (U400) is a magneto-resistive device which changes its output logic level in the presence of a magnetic field. When the clamshell is closed, a magnet in the upper part of the handset aligns with U400 mounted on the main PCB, causing the logic level to change to High. This is sensed by S-Gold at KP-IN4, and this information is relayed to the Application Processor to switch off the Main LCD and its backlight to save power (while switching on the Sub-LCD), as well causing the S-Gold to disable the handset audio circuits to prevent acoustic feedback. Note that S-Gold's keypad interface function is not used, and instead purely functions as General-Purpose Input/Output (GPIO).

Insertion or removal of a personal Handsfree (ear-bud & microphone) is detected by S-Gold via a logic level change on HSDET. This accessory incorporates a headset cord-mounted switch, which when pressed shorts HS-SEND/END to ground, signalling to S-Gold that a call is to be answered or ended, as appropriate.

S-Gold also has an internal analogue-to-digital conversion block. This is used for a number of analogue sensing functions, such as charge current monitoring (for charging status detection), battery temperature monitoring (for safety), and RF system temperature monitoring (for calibration adjustment for accuracy).

4.5.12. Modem Memories

The Modem has dedicated non-volatile NOR Flash and volatile asynchronous SRAM memories, separate from the Application Processor memories. The Flash is needed to retain and execute the Modem software, which is primarily used to control Modem reception and transmission across the RF air interface.

Upon initial power-up of the Modem, S-Gold boots from an internal boot memory, determining whether to continue to boot from the external Flash for normal handset operation, or whether to initiate re-programming.

Both the individual Flash and SRAM silicon die are located in a single stacked Multi-Chip Package (MCP) in order to save PCB area, with the (joint) component designation U102. The MCP is organised as 32 Mbits of Flash (2M address locations x 16 bits wide data) plus 8Mbits SRAM (512k locations x 16 bits wide data). The Flash supports 52MHz burst operation for speed. Both memories operate at 1.8 V for low power.

4.6. Baseband Overview (Application Processor)

4.6.1. AT Command Communication with GSM Modem S-GOLD

The Application Processor and Modem processor communicate via the asynchronous serial IPC-PRIMARY bus (InterProcessor Communication - Primary), over lines IPCPRI-TX, IPCPRI-RX, IPCPRI-RTS and IPCPRI-CTS, a part of IPC communication link. AT commands are transferred between two processors to link the smart phone software running on the application processor side with the Modem software running on the Modem processor side.

4.6.2. PCM Audio Routing to/from S-GOLD

– 4-9 –

4.6.3. Reset and Sleep/Wakeup Handshaking Signals with Modem

PROVISIONAL ISSUE

In the EB-X700 architecture design, the Modem is responsible for providing the Application Processor with a 13MHz clock, and the necessary reset control handshaking signals. At initial power-up, the Modem (S-Gold) boots itself, while holding the Application Processor in reset. After a short time, the Modem provides the 13 MHz clock to the Application Processor, and releases the reset line (AP-RST). The Application Processor then boots, and assumes control of the handset (including the Modem). A reset handshaking mechanism is provided for the Application Processor to signal to the Modem that an error and reset event occurred in the Application Processor, requiring an overall system reset to recover (via line AP-WAS-RST). This allows the handset to take the appropriate automatic reset and reboot action necessary to return functionality to the User. A sleep/wakeup hand-shaking mechanism is also provided to allow the Application Processor go to sleep mode and signals the Modem that it no longer requires the 13 MHz clock (via line AP-CLK-REQ), then the Modem will switch off the 13 MHz clock but maintains 32 kHz clock to the Application processor. The Modem will also switch-off the VCTCXO for power-saving if the Modem does not require the system clock. Furthermore, the IPCPRI-RTS line is also used for Modem processor to wakeup the application processor, and the IPCPRI-CTS line is also used for the application processor to wakeup the Modem processor.

4.6.4. Memory Management

The Application processor has dedicated non-volatile NOR Flash and volatile SDRAM memories, separate from the Modem memories. The Flash is needed to retain and execute the smart phone software and desired user data. Upon initial power-up of the EB-X700 phone, the Application processor boots from the boot-loader in the Flash memory once the 13 MHz clock is supplied and the reset line is released by the Modem processor. Both the individual Flash and SDRAM silicon die are located in a single stacked Multi-Chip Package (MCP) in order to save PCB area, with the (joint) component designation U203. The MCP is organized as 48-Mbyte of Flash (32-Mbyte is enabled by CS0 and 16-Mbyte is enabled by CS3) plus 16-Mbyte SDRAM.

4.6.5. Keypad

The keypad interface supports up to 6 columns by 5 rows, but only a 5 x 5 keypad matrix is used for EB-X700 design. The keypad scanning algorithm and de-bounce time is software controlled for event detection on both key press and key release. The keypad is managed under 32 kHz clock to allow a keypad interrupt to be detected even in the sleep mode. Besides 6 x 5 keypad matrix, a dedicated on/off key is also provided for powering up (short key press) or powering down (long key press) the EB-X700 phone.

TP416

S403

EDIT S404

W@P

S405

SF1

S406

CLR

S407

S408

S409

S410

3 S411 SND S412

S413

S414

S415

S416

S417

DOWN

S418

S419

S420

9 S421 LEFT S422

RIGHT

S423

S424

S425

S426

END

S427

TP413

TP414

TP415

TP417

TP419

TP420

TP421

TP422

TP423

TP424

PW-ON KBI-R0 KBI-R1 KBI-R2 KBI-R3 KBI-R4 KBO-C0 KBO-C1 KBO-C2 KBO-C3 KBO-C4 KBO-C5 KEYBL-PWM

VMAIN

TP431

TP433

PAD FOR KEYPAD

S428

TP418

Figure 4.6: Keypad

– 4-10 –

TP425

4.6.6. Bluetooth Module

PROVISIONAL ISSUE

The bluetooth module U201 provides short range (typical 10 meters or less) connectivity from the hanset to bluetooth-enabled devices such as headsets, car kits, and personal computers for transfer of voice and data. The Application processor controls the initialization of the bluetooth module through the UART2 interface (BT-RX, BT-TX, BtRTS and BT-CTS) and a reset line (GPIO13) BT-RST controls bluetooth reset.

Bluetooth system clock is supplied by a buffered 26MHz source built in to the RF chip SMARTI DC+, which has an on/off function controlled by the BT-CLK-REQ signal line. A PCM audio connection from U201 connects via the 4-wire I2S1 port of Modem processor S-GOLD, which uses 13-bit linear PCM.

4.6.7. IrDA

The IrDA transceiver interface is provided by the UART3 port of the Application processor to support the slow IrDA with data rate from 2.4kbps to 115.2kbps (IrDA-1.0 standard). The IrDA transceiver module can be set to low power mode using GPIO8 IrDA-SD-MODE control line.

4.6.8. SD Card

The SD interface of the Application processor supports Mini SD card operation at either 1-bit bus mode or 4-bit bus mode. The Mini SD card used for X700 handset provides a convenient compact storage device for saving the data files, such as pictures taken from the camera or the video clips loaded from PC and play back to the main LCD of the handset. Mini SD card interface supports SD card hot insertion and removal, which is implemented by a mechanical switch built-in to the Mini SD connector.

– 4-11 –

4.6.9. Main LCD Module

PROVISIONAL ISSUE

The main LCD module has 176 x 208 pixels TFT display with 65K colour resolution. The Application processor provides 16-bit interface for RGB pixel data transfer and a 3-wire (LCD-SCL, LCD-SDO and MAINLCD-CS/GPIO12) serial interface (McBSP3) for the module register settings.

8.9439.31 ACTIVE AREA

0.063

0.189

RGB

0.189

51.50

33.26 ACTIVE AREA

39.90

Figure 4.7: Main LCD Dimensions

The backlighting for the main LCD module is provided by +13 V DCDCOUT voltage of Companion IC, which has an on/off function programmed by an I2C link provided by the Modem processor. The partial display mode is supported by the main LCD module to reduce the power consumption of the display. Shown below is of all four configurations the LCD driver is capable. The main LCD module can be set to standby mode by programming the main LCD register to turn-off/reset mode for the best power savings whenever it is not in use.

MASKS1 MASKE1

MASKS2 MASKE2

non-display

display non-display

non-display

MASKS1 MASKE1

MASKS2 : FFh MASKE2 : FFh

non-display

display

MASKS1 MASKE1

MASKS2 : FFh MASKE2 : FFh

non-display

display

MASKS1

MASKE1

display

MASKS2 : FFh MASKE2 : FFh

Figure 4.8: LCD Module Standby Mode

– 4-12 –

4.6.10. Sub-LCD Module

PROVISIONAL ISSUE

The Sub LCD module has 96x64 pixel CSTN display with 65K colour resolution. The Application processor provides a 3-wire (LCD-SCL, LCD-SDO and SUBLCD-CS/GPIO6) serial interface (McBSP3) for the 16-bit RGB pixel data transfer or the module register settings. The backlighting for the Sub LCD module is provided by +13 V DCDCOUT voltage of Companion IC, which has an on/off function programmed by an I2C link provided by the Modem processor. The Sub LCD module can be set to standby mode by programming the Sub LCD register to turn-off and then pull the LCD-NRST/GPIO11 line to logic low for the best power savings whenever it is not in use.

Non-Display Area

Display Area

Non-Display Area

Figure 4.9: Sub-LCD Dimensions

4.6.11. Camera Module

The camera module is uses a 13MHz clock that is supplied by the camera interface of Application Processor. The camera interface also provides 8-bit parallel interface to receive the RGB or YCrCb pixel data from the camera module, and an I2C interface to read or write the registers of the camera module. The full resolution of the camera module is VGA 640x480 pixels, which is YCrCb data format used for snapshot and required by JPEG compress and store. The image resizing can be done by programming the related registers for QVGA (320 x 240), CIF (352 x 288) or QCIF (176 x 144) decimation. QCIF is used for camera viewfinder mode. Whenever the Sub LCD module is used for camera viewfinder mode, the QQQVGA (80 x 60) resizing should be done by the Application processor. Whenever the camera module is not used, the camera sensor readout function should be disabled and the STANDBY pin should be set for power saving. The following image processing can be done in the camera module:

Colour recovery and correction Auto white balance and auto black Sharpening Auto flicker detection Gamma correction On the fly defect correction Lens shading correction Digital zoom (2 x) Aperture correction and interpolation Auto color saturation and control Auto exposure

4.6.12. USB

The Application processor supports full speed (12 MHz) USB functionality as a Client USB Function Peripheral as defined in USB 1.1 standard. The USB host uses USB Type A connector to connect to the USB data cable accessory. When USB cable is connected to the X700 handset, the USB function controller of the Application processor shall detect the VBUS voltage provided by the host USB, and start running the USB program to support the USB communication link with the USB host.

– 4-13 –

4.7. Bluetooth Module

PROVISIONAL ISSUE

The X700 handset contains a Bluetooth module centered on Cambridge Silicon Radio’s (CSR) BlueCore3-ROM IC (U201).This provides short range (typically 10 meters or less) connectivity from the handset to Bluetooth-enabled devices such asheadsets, car kits, and personal computers in order to transfer voice and/or data. Shown below is the block diagram of the X700 Bluetooth interface.

BT-Antenna

U200

OMAP310

U100

PMB8870

SGOLD

IPC

I2S1

Serial I/F

AFC

UART2_TX UART2_RX UART2_CTS UART2_RTS GPIO12

I2S1_CLK0 I2S1_TX I2S1_RX I2S1_WA0

I2C_SCL I2C_SDA VCXO_EN

DIF-D7

(I2S1-WA1)

FSYS

VRF3

SPI_CSB

SPI_CLK SPI_MOSI SPI_MISO

USB_D+

USB_D-

UART_RX

UART_TX UART_RTS UART_CTS

BT_RST

PIO[4] PIO[5]

PCM_CLK

PCM_IN

PCM_OUT

PCM_SYNC

U201

VBT18

1.8V

Bluetooth

BC313143A

VBT18 VBT18

TX_A TX_B RF_IN

AIO[2] AIO[1] AIO[0]

PIO[0] PIO[1] PIO[3]

PIO[6] PIO[7] PIO[8] PIO[9] PIO[10] PIO[11]

XTAL_OUT XTAL_IN

PIO[2]

BT-CLK-REQ

BT26M

(26MHz)

Bluetooth RF

Balun/

Vmain

VDDPW VDDB

SDBB

VDDC

Vmain

VDDRF

VCXO_EN

VRF1

VRF2

Filter

PMB8611

1.8v,850mA

1.5v,170mA

1.5v,220mA

2.85v,250mA

2.85v,10mA

2.65v,150mA

RF Sub-System

EN PMB6258

VCTCXO

AFC

U304

PMIC

SDBB

LBB1 LBB2

LRF1

LRF2

LRF3

26MHz

SDBB

VLBB1 VLBB2

VRF1

VRF2

VRF3

U500

The Bluetooth IC connects to the UART2 interface on OMAP which provides the control and data interface to the application processor.The 4-wire UART connection (TXD, RXD, RTS, CTS) uses the BlueCore Serial Protocol (H5) with error detection and re-transmission.

The PCM audio connection from Bluetooth is connected to the I2S1 port on SGOLD. The PCM interface (with BT as the Master) is configured for a 256kHz bit-clock and an 8kHz sync rate.

The Bluetooth chip is powered by the VRF3 (2.65v @ 150mA) regulator supplied by the SM-PWR IC. VRF3 supplies the I/O block as well as an integrated 1.8v @ 100mA regulator (VBT18). This (VBT18) is used to power the RF portion, analog section, core and memory of the Bluetooth sub-system.

Figure 4.10: Bluetooth Module

− 4-14 −

The BT chip requires a 26MHz clock that is provided by an internal buffer in the RF Smarti DC+ IC. The buffer receives the

PROVISIONAL ISSUE

26MHz signal from a VCTCXO and is enabled by BT_CLK_REQ (PIO2). Once the BT IC is powered-up, the BT-CLK-REQ signal will be pulled high by an internal pull-up. The BT-CLK-REQ line also goes to the SM-Power IC where it is used to turnon the VRF2 supply (power for VCTCXO).

The Bluetooth IC reset is generated by the application processor (GPIO13). This is a logic low signal (~2.7V when high). After power-up, Persistent Store-Key (PS-Keys) settings are sent to the Host Controller Interface (HCI) firmware to initialize

BLUETOOTH. These settings (PCM configuration, BT address, etc.…) are stored in the OMAP memory and downloaded to the BT IC upon initialization. The 6-byte Bluetooth Address will be programmed during manufacture.

The CSR Bluetooth IC has a Deep Sleep mode. In this mode, the 26MHz clock (BT-CLK-REQ goes low) and much of the analog circuitry is shut down to save power. The BT IC will automatically enter this mode when idle (no BT activity detected). The device's timing is maintained by an internal, 1kHz slow clock. The chip will wake every 1.28 seconds to check for BT activity. When the host sends a packet to the BlueCore3 while it is in Deep Sleep, the activity on the UART will wake the IC. Then, with the BCSP protocol, the packet is resent after a delay.

− 4-15 −

4.8. Power Supplies

PROVISIONAL ISSUE

4.8.1 Introduction

The power management block primarily consists of SM-PWR (U304) and Companion IC (U300). U304 is a highly integrated power management ASIC with a complete on/off logic and charging control, regulators, LED drivers, 8-ohm speaker and vibrator driver. The companion IC is an ASIC that complements U304 providing the additional functionality like back-up battery charging, audio switching including stereo/mono headset, boost converter and additional regulators.

J300

I/O CN

P300

Li-ION

Battery

780

mAH

D303

VBUS

VACC

BATT TEMP

R327

BT300

EXT_PWR

VBATT

Charging

CKT

D302 Q301

D301

R321

VMAIN

R313

PWR

KEY

VIB

Keypad, Alert, Charging LED

SDBB

U304

SM-

PWR

U300 Com-

panion

SDBB VLBB1 VLBB2

VINT VSIM1 V28 VSD VUSB VANA VRF1 VRF2 VRF3

RESET_N I2C and Control I/F

LED SLED1/2

VIB

DCDCOUT

SENSEOUT VRTC2VRTC3 VAUDIO

VLBB3

VRTC2

SDBB VLBB1 VLBB2

VINT

VSIM1

VANA

BATT_TEMP

SENSEOUT

CLK(13MHz, 32kHz)

SDBB VLBB3

V28 VUSB VBUS

R252

R251

AP_RST

RTC

U100

SGOLD

Control I/F

IPC and

U200

OMAP

F26M

U102

MEMORY

Backlight

Main/Sub/

Photo

SIM

U201

Bluetooth

Mini-SD

Sub-LCD

Main-LCD

Camera

IrDA

U203

MEMORY

DCDCOUT

Q401

VSIM1 SW

SDBB

VSIM1

VBATT

VRF1 VRF2

VRF3

VSD

V28

SDBB

The Power Management Block consists of the following sections:

1. Power Source

2. Power Control Logic

3. System Power Supply

4. Battery Charging & Monitoring

5. Accessory Detection

4.8.2 Power Source

The main battery is a single Lithium-Ion 780mAH(Li-Ion) cell with 3.7v nominal voltage. The RTC back-up battery is a LithiumIon 0.5mAH coin cell with 3.0v nominal voltage. The charger supported is a 5.6v±0.4v, 700mAH

Figure 4.11: Power Supply and Related Sub-System Block Diagram

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4.8.3 Power Control Logic

PROVISIONAL ISSUE

The power on sequence can be initiated when a valid battery voltage is applied (VBATT>3.1).

One of following conditions start the Power Up sequ enc e.

1. Power key is pushed for more than 1,000 ms

2. Application of a charger voltage EXT_PWR > 4.0V

3. Real Time Clock alarm generated by U100 (SGOLD) RTCOUT=1

The Power Up sequence is as follows:

1. U304 band gap reference is activated.

2. U304 checks VBATT voltage. If VBATT > 3.1 then power-up, Else check for VBATT while power-up event is valid.

3. The following U304 regulators are en abl ed in sequen ce : VRF2, SDBB, VLBB2 , VLBB1, VINT, VANA , VSIM1 , V28, VSD, VUSB.

4. After U304 VINT is enabled, U300 VLBB3 is also enabled.

5. After U304 VUSB is enabled, U304-41 (INTOUT) will go low followed by U304-48 (RESET_N) going high releasing U100 SGOLD from reset.

6. U100 boot code will determine if the power-up sequence is valid. If valid then provide clock to U200 (13MHz and 32kHz) and release U100 from reset (AP_RST); Else send ALL_OFF command to U304 to power-down the system.

7. U200 power-up to complete the turn-on sequence.

The power-down sequence of the phone is as follows:

1. Power-down sequence is initi ated by th e dete ction of a v alid SW 428 ON /OFF key press or a low b attery voltag e condit ion has been detected.

2. U200 determines that a valid power-down sequence was detected.

3. U200 disables both active hardware and software application.

4. After U200 power-down sequence is completed, a command to U100 is sent to disable U304.

5. U100 initiates its power-down sequence then resets U200 and remove clock.

6. After U100 power-down sequence is completed, an ALL_OFF command to U304 is sent to disable all regulators.

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4.8.4. System Power Supply

PROVISIONAL ISSUE

The following is the summary of the power supplies provided by SM-PWR (U304).

Power Supply Description Input Supply Rating

SDBB Memory core and I/O Supply VMAIN 1.80 V ± 0.12 V, 850 mA

(U102, U203) VLBB1 U100 DSP core supply SDBB 1.50 V ± 0.09 V, 170 mA VLBB2 U100 ARM core supply SDBB 1.50 V ± 0.09 V, 300 mA VINT U100 I/O and peripheral supply VMAIN 2.72 V ± 0.10 V, 135 mA VANA U100 Analog circuit supply VMAIN 2.65 V ± 0.09 V, 220 mA VSIM1 U100 SIM I/O and SIM card supply VMAIN 2.85 V ± 0.10 V or VSIM1_SW Switched SIM card supply (On/off VSIM1 1.80 V ± 0.09 V, 22 mA

control by U100) V28 U200 I/O and peripheral supply VMAIN 2.85 V ± 0.09 V, 200 mA

(Main/Sub LCD, Camera, IrDA) VSD Mini-SD power supply VMAIN 2.85 V ± 0.10 V, 135 mA

(serially set to 2.85v after powerup) VUSB U200 USB I/F supply VMAIN 3.10 V ± 0.10 V, 45 mA VRF1 RF regulated supply VMAIN 2.70 V ± 0.10 V, 260 mA

(serially enabled after power-up) VRF2 Y500 (26MHz) VCXO supply VMAIN 2.70 V ± 0.10 V, 10 mA VRF3 U201 Bluetooth supply VMAIN 2.7 V ± 10 V, 150 mA

(serially enabled after power-up)

The following is the summary of the power supplies provided by Companion IC (U300).

Power Supply Description Input Supply Rating

VLBB3 U200 ARM core supply SDBB 1.50 V ± 0.09 V, 300 mA DCDCOUT 13 V Boost Converter for driving VMAIN 13.00 V ± 0.09 V, 170 mA

Main/Sub backlight LED and

Camera Photo-light VAUDIO U300 Audio circuit supply VMAIN 2.70 V ± 0.08 V, 100 mA VRTC3 Back-up battery charging supply VMAIN 3.00 V ± .09 V, 10 mA VRTC2 U100 RTC supply VRTC3 2.10 V ± 0.06 V, 2 mA

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4.8.5. Battery Charging and Monitoring

PROVISIONAL ISSUE

The estimated battery capacity is displayed as a LCD battery icon. It is derived from battery voltage and current consumption measurements made by U100 as shown below:

Icon Status VBATT

7 4.07 V < VBATT < 4.20 V 6 3.95 V < VBATT < 4.07 V 5 3.85 V < VBATT < 3.95 V 4 3.70 V < VBATT < 3.85 V 3 3.65 V < VBATT < 3.70 V 2 3.60 V < VBATT < 3.65 V 1 3.45 V < VBATT < 3.60 V Low Voltage Alarm 3.35 V < VBATT < 3.45 V HW Shutdown VBATT < 2.9 V ± 0.06 V

When a deeply discharged battery is used, a pre-charging circuit is automatically enabled for trickle charging when a charger is connected. Also the charging (RED) LED is automatically enable even though the unit is not active. Only after the battery has sufficient charge that it will automatically enter normal charging operation.

Only approved chargers can be used with the handset. By using only approved chargers and the unique Panasonic J300 connector no additional circuitry is provided within the unit to protect from charger voltage exceeding the design limit of 7.0 V.

4.8.6. Accessory Detection

The phone supports detection of an USB data cable through the presence of VBUS in the I/O connector.

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