LG GB195 Service Manual

1

GB195

Service Manual

LG Electronics

2

Table Of Contents

1. INTRODUCTION…………………...3

1.1 Purpose…………………………………3

1.2 Regulatory Information………………...3

2. PERFORMANCE…………………...5

2.1 H/W Features…………………………...5

2.2 S/W Features…………………………...6

3. TECHNICAL BRIEF………………18

3.1 Digital Main Processor(

MT6223

)……….18

3.2 Power Amplifier Module(

SKY77518

)…....25

3.3 Transceiver Module(

AD6548

)…………..26

3.4 Memory Module (

PF38F4050M0Y0CG)

…….28

3.5 FM Radio Module (Si4708)…………..32

3.6 Antenna Switch Module (

B9308

)………34

3.7 Camera Module (AIT706X)…………..35

3.8 LCD Interface……………………….…39

3.9 SIM& Micro SD Card Interface…..…..42

3.10 KEYPAD Interface …………………..43

3.11 Battery Charging Block Interface…..44

3.12 Audio Interface……………….….…..45

3.13 Vibrator Interface….………………...47

3.14 Key LED Interface…………………..48

4. TROUBLE SHOOTING…………..49

4.1 Power On Trouble…………………….49

4.2 SIM Card Trouble……………………..54

4.3 Vibrator Trouble……………………….56

4.4 Keypad Trouble……………………….58

4.5 RTC Trouble…………………………...60

4.6 Key Backlight Trouble………………...62

4.7 LCM Backlight Trouble……………….64

4.8 LCM Trouble……………….………….66

4.9 Microphone Trouble…………………..68

4.10 Receiver Trouble…………………….70

4.11 Speaker Trouble……………………..72

4.12 Headphone Trouble…………………74

4.13 Charging Trouble…………………….78

4.14 FM Radio Trouble…………………79

4.15 Camera Trouble……………………81

4.16 Micro SD Trouble………………….84

4.17 RF Trouble…………………………86

5. DOWNLOAD……………….….98

5.1 Download setup………………….98

5.2 Download Process………………99

6. BLOCK DIAGRAM…………..107

7. CIRCUIT DIAGRMA…………108

8. BGA IC PIN Check…………..117

9. PCB LAYOUT…………………120

10.ENGINEERING MODE……..122

11. CALIBRATION……………...126

11.1 Test Equipment Setup………...126

11.2 Calibration Steps………………127

12. STAND ALONE TEST……..166

12.1 Test Configuration…………….166

12.2 META tool Install process…….167

12.3 Rx Test…………………………171

12.4 Tx Test…………………………173

13. EXPLODED VIEW&
REPLACEMENT PART LIST…175

13.1 Exploded View………………..175

13.2 Replacement Part list……..….177

-3-

1. INTRODUCTION

1.1 Purpose

This manual provides information necessary to repair, description and download the

features of this model.

1.2 Regulatory Information

A. Security

Toll fraud, the unauthorized use of telecommunications system by an unauthorized part(for
example ,persons other than your company’s employees, agents, subcontractors, or person
working on your company’s behalf) can result in substantial additional charges for your
telecommunications services.

System users are responsible for the security of own system. There are may be risks of
toll fraud associated with your telecommunications system. System users are responsible for
programming and configuring the equipment to prevent unauthorized use .The manufacturer
dose not warrant that this product is immune from the above case but will prevent
unauthorized use of common-carrier telecommunications service of facilities accessed
through or connected to it.

The manufacturer will not be responsible for any charges that result from such
unauthorized use.

B. Incidence of Harm

If a telephone company determines that the equipment provided to customer is faulty and
possibly causing harm or interruption in service to the telephone network, it should
disconnect telephone service until repair can be done. A telephone company may
temporarily disconnect service as long as repair is not done.

C. Changes in Service

A local telephone company may make changes in its communications facilities or
procedure. If these changes could reasonably be expected to affect the use of the this phone
or compatibility with the network, the telephone company is required to give advanced written
notice to the user, allowing the user to take appropriate steps to maintain telephone service.

D. Maintenance Limitations

Maintenance limitations on this model must be performed only by the manufacturer or its
authorized agent . The user may not make any changes and/or repairs expect as specifically
noted in this manual.

Therefore, note that authorized alternations or repair may affect the regulatory status of
the system and may void any remaining warranty.

E. Notice of Radiated Emissions

This model complies with rules regarding radiation and radio frequency emission as
defined by local regulatory agencies. In accordance with these agencies, you may be
required to provide information such as the following to the end user.

-4-

F. Pictures

The pictures in this manual are for illustrative purposes only; your actual hardware may
look slightly different.

G. Interference and Attenuation

Phone may interfere with sensitive laboratory equipment, medical equipment, etc.
Interference from unsuppressed engines or electric motors may cause problems.

H. Electrostatic Sensitive Devices

ATTENTION

Boards, which contain Electrostatic Sensitive Devices(ESD),are indicated by the
sign .
Following information is ESD handing:
. Service personnel should ground themselves by using a wrist strap when exchange system

boards.
. When repairs are made to a system board , they should spread the floor with anti-static mat
which is also grounded .

. Use a suitable, grounded soldering iron .
. Keep sensitive parts in these protective packages until these are used.
. When returning system boards or parts like EEPROM to the factory, use the protective

packages as
described.

-5-

2. PERFORMANCE

2.1 H/W Features

Solution MT6223C + AIT706X(144pin)

Media Tek / AIT

Form Factor Bar type
Dimension (mm) 104 x 46 x 13.95

RF Band

Dual Band 900/1800 or Dual Band
850/1900 Internal Antenna

Data GPRS Class 10

Main Display

1.5” TFT 262K color, 128x

128 Pixels

(HW)

Battery 950 mAh

Same as LG6/7

Camera Yes (CMOS VGA Sensor)

Same as
KG195/199

Video player

Yes

Video Recorde

r Yes

Encode
H.263+AMR

Audio player

Yes

MP3/AAC/(AAC+

w/o DRM)

FM Receiver

Yes , US/Europe
band(87.5~108MHz)

Embedded FM antenna Yes
Loud Speaker Yes
Memory Size 256Mb NOR Flash +64Mb PSRAM
User Memory Yes 4M Bytes

Memory Card Yes Micro SD

Scheduled FM recording Yes
FM as alarm Yes

Video recording

Yes (H.263 QCIF: Encode & Decode

30fps)

Audio player

--real resuming Yes

For MP3 only

Bluetooth No

USB Yes

Slave 2.0 full
speed

IrMC No
WAP Yes

V2.0

DRM Yes

OMA DRM v1.0

Dictionary No

Music Equalizer

Yes (8 types, normal, classic, jazz,
pop, rock, bass3, bass9, loudness) W/ AIT706X

Image Editing No
In flight mode Yes

-6-

2.2 S/W Features

2.2.1 General Features

Function Target Specification Parameter Support

RSSI (7 Level, 0~6) Y
Battery Indicator (4 Level, 0~3) Y
Icons Indicator Y

Basic Display

Others reference to "Phone Personalization
Setting"

Y

Speech Codec FR/EFR/HR/AMR Y

Number of Keys: 21Key (include 12

alphanumeric/number keys (0-9,#,*), 4
function keys, 5 way navigation keys)

Y

Clear key N

Keypad

International Access (+)(long 0) Y

User Selectable and Customizable Profiles
(6 profiles : General, Meeting, Outdoor,
Vibrate only, Headset, Silent)

Y

Auto-detect and activated profiles (1
profile: Headset)

Y

Key Tone

Key Tone Volume (7 Level - 0 ~ 6, 0 for
Mute)

Y

Key tone setting (4 sets: Silent, Click,
Tone, English Human voice)

Y

Ring Tone

Ring Tone Volume (7 Level - 0 ~ 6, 0 for
Mute)

Y

Built-in Ring Tone Pattern: 20 Y
Customizable Ring Tone Link: 5 Y

Intelligent Call Alert
Digits To Sound Synthesizing Y

Alert Type

6 Types - Ring, Vibration Only, Vibration
and Ring, Ring after vibration, Light Only,
Beep Once

Y

Power On Tone

Built-in Ring Tone Pattern: 5 (include
Silent)

Y

Power Off Tone

Built-in Ring Tone Pattern: 5 (include
Silent)

Y

Message Tone

Built-in Ring Tone Pattern: 6 (include
Silent)

Y

User Profile
(Audio Settings)

Follow common
UI

Warning Tone

-7-

Function Target Specification Parameter Support

Built-in Ring Tone Pattern:
1 (Only On/Off operation)

Y

Error Tone

Built-in Ring Tone Pattern:
1 (Only On/Off operation)

Y

Camp On Tone

Built-in Ring Tone Pattern:
1 (Only On/Off operation)

Y

Connect Tone

Built-in Ring Tone Pattern:
1 (Only On/Off operation)

Y

Status LED N
Charger-in Status LED Y

Answer Mode Y

Any Key Answer Y
Auto (Only available for headset mode

while headset plugged in)

Y

Calendar - Month view only Y

Personal Information

Management

To do list - 6 fields (Date, Start time, End
time, Note, Alarm, Repeat)

Y

Alarm

3 sets of Alarm Y
4 major fields for each set - On/Off, Time,

Repeat type, Audio option

Y

World Clock

Cities list: China(49),IND(51),CIS(65)
cities

Y

Daylight saving time support: activated by
user selection

Y

Home city set Y

Calculator

Addition, Subtraction, Multiplication,
Division

Y

Unit Converter

Weight, Length Y

Currency Converter
Health Y

Tools and Utilities
Follow common
UI

BMI, Menstrual Y

Greeting Text Y
Shortcuts Y

Flight Mode Y
Time and Date Setting Y

Phone
Personalization
Setting

Wallpaper Y

-8-

Function Target Specification Parameter Support

Screen Saver Y
Power On Animation Y
Power Off Animation Y
LCD Backlight Y
PLMN/Service Indicator (Display of

PLMN Name/Service Provider Name from
SIM)

Y

Date Time Display Y
Own Number Display Y

Restore Factory Default Setting Y

Security Phone Lock Y

Engine

T9 Y

Support Language

Depends on customer and market
requirement.
Total supported languages will be limited
to memory condition.

Y

Input Method

Predictive word input Y

2 embedded game Y Game

Settings:
BGM, Sound Effect, Vibration

Y

2.2.2 Networking Features

Function Target Specification Parameter Support

GPRS GPRS Multi slot Class 10 Y

Data Service BS 24 - 26 (2400-9600 bit/s),

asynchronous, non-transparent, UDI.
CSD rate up to 9.6K bit/s

Y

Last Dialed Number : 50 Y

Last Received Number : 50 Y

Last Missed Number : 50 Y

Call History

Scratch Pad Memory(Save an input
number in call) : 1

Y

Last Call Time Y

Total Dialed Call Time Y

Total Received Call Time Y

Last Call Cost Y

Total Cost Y

Max Cost Y

Call Cost

Price Per Unit Y

-9-

Function Target Specification Parameter Support

Last Sent (unit in Byte) Y

Last Received (unit in Byte) Y

All Sent (unit in Byte) Y

GPRS Counter

All Received (unit in Byte) Y

Call Swap Y

Call Retrieve Y

Automatic Redial Y

Speed Dialing Y

Call Management

Last Number Redial Y

Call Hold Y

Call Waiting Y
Calling Line Identity Presentation Y
Calling Line Identity Restriction Y
Connected Identification Restriction Y
Call Divert All voice Calls Y
Call Divert if unreachable Y
Call Divert if no answer Y
Call Divert if busy Y

Call Divert all data calls Y
Cancel all divert Y
Call Barring All Outgoing Calls Y

Call Barring All Outgoing International
Calls
Call Barring All outgoing International
except home

Y

Call Barring All incoming Calls Y
Call Barring All incoming Calls when

roaming

Y

Multi-party Call (up to 7 calls, 5 in
conference, 1 on held, 1 waiting)

Y

Call
Related Supplementa
ry Services

Line switching (Line1, Line2)
Call reminder (Off, Single, Periodic)
Closed User Group

Y

Quick Search (Notice: Quick search
function only works in Phonebook, SMS

and MMS. In other application, this phone

supports regular search.)

Y

Alpha Store and Recall Y

Access Phone Book in call Y

Copy & Move Y

Fixed Dial Number Y

Service Dial Number Y

Phone Book

Speed Dial Number Y

-10-

Function Target Specification Parameter Support

SOS Number Y

Entry : 1000 names (11 fields – Name,
Mobile, Home, Company name, Email
address, Office number, Fax number,
Birthday, Associate Picture, Associate
Sound, Caller group)

Y

Caller Group-5 caller group- Friends,
Family, VIP, Business, Others (5 fields –
Name, Ring, Picture, LED pattern,
Member list)

Y

Own Numbers: User can change the own

numbers of handset. (Sets of own numbers

depends on SIM)

Y

vCard: (Edit, Send and Receive. 7 fields –
Name, Mobile, Home, Company Name,
Email Address, Office Number, Fax
Number)

Version 2.1 Y

Note: This phone doesn’t support phone
number search.

Y

SMS

Y

Standard SMS Y

SMS Reply Path Y

SMS Delivery Report

Valid period (1 hour/12 hours/1 day/1
week/Maximum)
Message Type (Text, Fax, Page,
Email) Message Indication Type refer
to GSM 03.40

Y

Basic text-

only SMS as described in 3GPP

TS 23.040 R5

Y

Notice: This phone doesn’t support video
ring tone via SMS

Y

SMS Character Sets Support

GSM7 Y

UCS-2 Y

EMS

EMS Standard as described in 3GPP TS

23.040 R5 excluding WVG

Y

EMS Text Format

Text Style : Normal, Bold, Italic,
Underlined, Strikethrough

Y

Text Alignment : Left, Right, Center Y

Text Size : Normal, Large, Small Y

Message

EMS Image Support

-11-

Function Target Specification Parameter Support

1-bit small image 16x16 pixels black and
white

Y

1-bit large image 32x32 pixels black and
white

Y

1-bit variable image in single SMS packet Y

Extended black and white 1-bit image up
to 255x255 pixels

Y

Extended 6-bit image up to 255x255 Y

Pre-defined animation Y

User-defined small animation 8x8 pixel
4-frame black and white

Y

User-defined large animation 16x16 pixel
4-frame black and white

Y

Pre-defined sound Y

User-defined i-Melody up to 128 bytes Y

LZSS compression algorithm Y

Re-use extended object Y

Object Distribution Y

User Prompt Indicator Y

Hyperlink format element Y

Extended Object Distribution Y

EMS Character Sets Support

Y

GSM7 Y

UCS-2 Y

EMS Miscellaneous

Y

SMS Concatenation ( 8 Segments for
MT/MO)

Y

SMS Compression Y

MMS

Y

MMS Standard as described in 3GPP TS

23.140 V4.8.0

Y

Extract media from Message Y

Insert Media into message Y

OTA provisioning partially support
(Network Profile setting

Y

Auto download mode Y

Manual download mode Y

Operator can pre-configure the delivery
mode

Y

MMS notification with icon or Pop-up
message display)

Y

MMS Message Format

Y

-12-

Function Target Specification Parameter Support

MMS SMIL (A subset of SMIL descried
in the MMS Conformance Document 1.2)

Y

MMS Character Sets Support

Y

US-ASCII Y

Unicode Y

ISO-8859-1 Y

UTF-16 Y

UTF-8 Y

MMS Images Support

Y

WBMP Wireless bitmap Y

GIF87 Y

GIF89a Y

JPEG (sw decode) Y

MMS Sound Formats Support

Y

WAV Y

AMR Y

MIDI Y

MP3 Y

MMS Miscellaneous

Y

Multipart binary MIME Y

Storage

Y

Separated Inbox folder for SMS and MMS Y

Separated Outbox folder for SMS and
MMS

Y

Total 300 SMS in the storage of phone
plus SIM including Inbox, outbox, sent
and draft

Y

Total 100 MMS in the phone storage
including Inbox, draft and Outbox
Notice: Total MMS count need depends
on user memory space.

Y

Common Operation

Y

Write Message Y

Read Message Y

Edit Message
(For MMS, Edit only conformance
messages, unknown media not supported,
unknown SMIL not supported)

Y

Reply Message Y

Send Message Y

Delete Message Y

Forward Message Y

-13-

Function Target Specification Parameter Support

Use Sender's Number Y

Message Templates Y

Extract media from Message (MMS/EMS) Y

Store Media (MMS/EMS) Y

Delete Media (MMS/EMS) Y

Read Cell Broadcast Y
Cell Broadcast Mode: Receive On/Off Y
Cell Broadcast Message Language Y

Cell Broadcast

Channel Setting Y

Automatic Network Selection Y
Manual Network Selection Y
Network Service Status Y
Preferred Network (User definition) Y

Network

GPRS connection mode selection:
Always, When Needed

Y

Common Operation

Y

SIM Application Toolkit (Release 99 Class

2 certified)

Y

Prepaid SIM operation Y

Security

Y

PIN Y

SIM

Personalization (Service provider lock,
Network lock)

Y

DTMF Signaling Y DTMF
DTMF Enable & Disable Y

2.2.3 Multimedia Features

Function Target Specification Parameter Support

Image size:
120X160, 160X120, 320X240, 640X480

Y

Continuous Shot:
9 shot, 5 shot, 3 shot, OFF

Y

Zoom: 1x ~ 4x Y

Image Quality:
High, Normal, Low

Y

White Balance:
Auto, Daylight, Tungsten, Fluorescent,
Cloud, Incandescence

Y

Shot: Three Shot Sounds Y

EV: -4 ~+4 Y

Camera

Screen Mode:
Auto, Night

Y

-14-

Function Target Specification Parameter Support

Banding: 60Hz/50Hz Y

Effect settings: (Total 14 types)
Normal, Grayscale, Sepia, Sepia Green,
Sepia Blue,
Color Invert, Gray Invert, Blackboard,
Whiteboard,
Copper Carving, Blue Carving,
Embossment, Contrast, Sketch

Y

No. of the Stick Frames: 3
Frame 1, Frame 2, None
Stick Frame Only can be used while image
size is 240WX320H

Y

Storage Selection:
Phone, Memory card

(Only available when external memory card

supported)

Y

Delay timer:
Off/ 5/ 10/ 15 Sec

Y

Thumbnail supported

Y

Browse Style:
List, Matrix

Y

View Y

Forward:
To Wallpaper, Phonebook, Screen Saver,
Power On Display, Power Off Display,
MMS

Remove the BT. Y

Rename Y

Delete Y

Delete All Y

Sort:
By Name, Type, Time, Size, None

Y

Storage Selection:
Get list from Phone, Memory card
(Onl

y available when external memory card

supported)

Y

Image Format Support

JPEG Baseline Y

GIF87a Y

GIF89a Y

WBMP Y

Image Viewer

BMP Y

Play Y

Pause Y

Music Player
(follow common
UI)

Resume Y

-15-

Function Target Specification Parameter Support

Stop Y

Next Y

Previous Y

Storage Selection:
Get list from Phone, Memory card

(Only available when external memory card

supported)

Y

Auto-Generate Playlist Y

Skin: 2 skins Y

Repeat Mode:
Off, One Song, All Songs

Y

Shuffle Play Y

Background Play Y

Equalizer Setting: 8 sets
Normal, Bass, Dance, Classical, Treble,
Party, Pop, Rock

Y

Volume Control:
7 level (0 ~ 6, 0 for Mute)

Y

Playlist Edit:
Add, Remove, Remove All

Y

Sound Format Support Y

MP3 Y

AMR Y

MIDI Y

WAV Y

AAC Y

Play Y

Pause Y

Stop Y

Speed Control:
X1, X2, X4, X8, X1/2

As AIT update, AIT706
can support the Video F
F function with 8X spee
d. But If the video strea
m(file size) is too short t
hen this 8X speed funct
ion would let the video
play function jump to th
e end quickly

Y

Forward:
To Phonebook, Screen Saver, Power On Anima
tion, Power Off Animation, MMS

Remove the BT. Y

Rename Y

Delete Y

Video Player

Delete All Y

-16-

Function Target Specification Parameter Support

Sort:
By Name, Type, Time, Size, None

Y

Storage Selection:
Get list from Phone, Memory card

Only Memory Card Y

Volume Control:
7 level (0 ~ 6, 0 for Mute)

Y

Image Quality:
High, Normal, Low

Y

White Balance:
Auto, Daylight, Tungsten, Fluorescent,
Cloud, Incandescence

Y

Mode:
Standard, MMS

Y

EV: -4 ~+4 Y
Screen Mode:

Auto, Night

Y

Banding: 60Hz/50Hz Y
Effect settings: (Total 14 types)

Normal, Grayscale, Sepia, Sepia Green,
Sepia Blue,
Color Invert, Gray Invert, Blackboard,
Whiteboard,
Copper Carving, Blue Carving,
Embossment, Contrast, Sketch

Y

Audio On/Off Y
Recorder Format: H.263, 3gpp Y

Video Recorder

Storage Selection:
Phone, Memory card

(Only available when external memory card

supported)

Only Memory Card Y

Storage Selection:
Phone, Memory card

(Only available when external memory card

supported)

Y

Encode Format:
AMR

Y

Record Y

Pause Y

Resume Recording Y

Sound Recorder

Stop Y

Edit Y

Play Y

Melody Compose

(TBD)

Save Y

-17-

Function Target Specification Parameter Support

Instrument Selection: 10 types
Piano, Guitar, Violin, Saxophone, Steel
Drums, Flute, Harmonica, Trumpet, Music
Box, Xylophone

Y

Play Speed:
Fast, Normal, Slow

Y

[Notice] Melody composer only support one
instrument in one melody file, so the last chosen
instrument will be used to play this melody file

Y

Frequencies: 87.5 ~ 108.0
Skin: 2 skins

Y

User definable Preset Channel List Y

Channel Auto Search Y

Background Play Y

Record Y

Record Format:
AMR

Y

Record Storage:
Phone memory, SD card (Option, follow
common UI)

(Only available when external memory card

supported)

Only Memory Card Y

FM Radio

Preset Channel List generated by auto
search

Y

2.2.4 Connectivity Features

Function Target Specification Parameter Support

WAP 2.0 Spec. Y

WAP Push OTA/Message Y

WAP Provisioning Service Y

CSD/GPRS data connection Y

Bookmark Y

Wireless Telephony Application (WTA)
support:
Only Public WTA support, supported
functions listing below ­ * Make a telephone call
* Send a string of DTMF tones over an
established voice connection
* Add an entry to the telephone book of
the device

Y

WAP

Supports WML, WCSS, XHTML mp Y

Mass Storage Device Y USB

Virtual COM (PCSync) Y

-18-

3. TECHNICAL BRIEF

3.1 Digital Main Processor

Figure.3-1-1 MT6223 FUNCTIONAL BLOCK DIAGRAM

-19-

3.1.1 System overview

MT6223 is an entry level chipset solution with class 12 GPRS/GSM modem. It integrates only
only analog baseband but also power management blocks into one chip and can greatly reduce
the component count and make smaller PCB size. Besides, MT6223 is capable of SAIC (Single
Antenna Interference Cancellation) and AMR speech. Based on 32 bit ARM7EJ-STM RISC
processor, MT6223 provides an unprecedented platform for high quality modem performance.

Platform

MT6223 runs the ARM7EJ-STM RISC processor at up to 52Mhz, thus providing best
trade-off between system performance and power consumption.

For large amount of data transfer, high performance DMA (Direct Memory Access) with
hardware flow control is implemented, which greatly enhances the data movement speed while
reducing MCU processing load.

Targeted as a modem-centric platform for mobile applications, MT6223 also provides
hardware security digital rights management for copyright protection. For further safeguarding,
and to protect manufacturer’s development investment, hardware flash content protection
is also provided to prevent unauthorized porting of software load.

.

Memory

MT6223 supports up to 4 external state-of-the-art devices through its 8/16-bit host interface.
Devices such as burst/page mode Flash, page mode SRAM, and Pseudo SRAM are supported.
For greatest compatibility, the memory interface can also be used to connect to legacy devices
such as Color/Parallel LCD, and multi-media companion chip are all supported through this
interface. To minimize power consumption and ensure low noise, this interface is designed for
flexible I/O voltage and allows lowering of supply voltage down to 1.8V. The driving strength is
configurable for signal integrity adjustment. The data bus also employs retention technology to
prevent the bus from floating during turn over.

Multi-media

MT6223 utilize high resolution audio DAC, digital audio, and audio synthesis technology to
provide superior audio features., e.g. MP3 ring tone. For MT6223C, MP3 player is also
supported.

Connectivity, and Storage

MT6223 supports UART as well as Bluetooth interface. Also, necessary peripheral blocks are
embedded for a voice centric phone: Keypad Scanner with the capability to detect multiple key
presses, SIM Controller, Alerter, Real Time Clock, PWM, Serial LCD Controller, and General
Purpose Programmable I/Os.

Furthermore, to provide more configuration and bandwidth for display, an additional 9-bit
parallel interface is incorporated.

For MT6223C, memory card control is provided through LCD interface, including SD and mini
SD, etc. Therefore high quality MP3 playback of 48kHz sampling with 320kbps format can be
supported

Audio

Using a highly integrated mixed-signal Audio Front-End, architecture of MT6223 allows for
easy audio interfacing with direct connection to the audio transducers. The audio interface
integrates D/A and A/D Converters for Voice band, as well as high resolution Stereo D/A
Converters for Audio band. In addition, MT6223 also provides Stereo Input and Analog Mux.
MT6223 also supports AMR codec to adaptively optimize speech and audio quality.

-20-

Radio

MT6223 integrates a mixed-signal Baseband front-end in order to provide a well-organized
radio interface with flexibility for efficient customization. It contains gain and offset calibration
mechanisms, and filters with programmable coefficients for comprehensive compatibilitycontrol
on RF modules. This approach also allows the usage of a high resolution D/A Converter for
controlling VCXO or crystal, thus reducing the need for expensive TCVCXO.

MT6223 achieve great MODEM performance by utilizing 14-bit high resolution A/D Converter
in the RF downlink path. Furthermore, to reduce the need for extra external current-driving
component, the driving strength of some BPI outputs is designed to be configurable.

Debug Function

The JTAG interface enables in-circuit debugging of software program with the ARM7EJ-S
core. With this standardized debugging interface, MT6223 provides developers with a wide set
of options in choosing ARM development kits from different third party vendors.

Low Power Features

MT6223 offers various low-power features to help reduce system power consumption. These
features include Pause Mode of 32KHz clocking at Standby State, Power Down Mode for
individual peripherals, and Processor Sleep Mode.

In addition, MT6223 are also fabricated in advanced low leakage CMOS process, hence
providing an overall ultra low leakage solution.

Power Management

MT6223 integrates all regulators that a voice-centric phone needs. Seven LDOs optimized for
Specific GSM/GPRS baseband sub-systems are included, and a RF transceiver needed LDO is
also built-in. Besides Li-Ion battery charge function, SIM card level shifter interface, two
open-drain output switches to control the LED and vibrator are equipped. Other power
management schemes such as thermal overload protection, Under Voltage Lock-out
Protection (UVLO), over voltage protection and oower-on reset and start-up timer are also
MT6223 features. Besides, 3 NMOS switches controlling the RGB LEDs are also embedded to
reduce BOM coount.

Package

The MT6223 device is offered in 9mm×9mm, 224-ball, 0.5 mm pitch, TFBGA package

.

3.1.2 Platform Feature

General

Integrated voice-band, audio-band and base-band analog front ends
TFBGA 9mm×9mm, 224-ball, 0.5 mm pitch package
MCU Subsystem
ARM7EJ-S 32-bit RISC processor
High performance multi-layer AMBA bus
Java hardware acceleration for fast Java-based games and applets
Operating frequency: 26/52 MHz
Dedicated DMA bus
7 DMA channels
320K bits on-chip SRAM
On-chip boot ROM for Factory Flash Programming
Watchdog timer for system crash recovery
3 sets of General Purpose Timer

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Circuit Switch Data coprocessor
Division coprocessor
External Memory Interface
Supports up to 4 external devices
Supports 8-bit or 16-bit memory components with maximum size of up to 32M Bytes each
Supports Flash and SRAM/PSRAM with Page Mode or Burst Mode
Industry standard 9-bit Parallel LCD Interface
Supports multi-media companion chips with 8/16 bits data width
Flexible I/O voltage of 1.8V ~ 2.8V for memory interface
Configurable driving strength for memory interface
User Interfaces
5-row × 7-column keypad controller with hardware scanner
Supports multiple key presses for gaming

Supports multiple key presses for gaming

SIM/USIM Controller with hardware T=0/T=1 protocol control
Real Time Clock (RTC) operating with a separate power supply
General Purpose I/Os (GPIOs)
2 Sets of Pulse Width Modulation (PWM) Output
Alerter Output with Enhanced PWM or PDM
6 external interrupt lines
Security
Supports security key and 59 bit chip unique ID

Connectivity

3 UARTs with hardware flow control and speed up to 921600 bps
DAI/PCM and I2S interface for Audio application
Memory card interface is provided for MT6223C.

SD and MMC cards are supported

Low Power Schemes

Power Down Mode for analog and digital circuits

Processor Sleep Mode
Pause Mode of 32KHz clocking at Standby State
3-channel Auxiliary 10-bit A/D Converter for application usage other than battery monitoring
Power Management

2.8V to 5.5V Input Range
Charger Input up to 8V
Seven LDOs Optimized for Specific GSM Sub-systems
One LDO for RF transceiver

High Operation Efficiency and Low Stand-by Current

Li-Ion Battery Charge function
SIM Card Interface
Two Open-Drain Output Switches to Control the LED and Vibrator
Three NMOS switches to control RGB LEDs
Thermal Overload Protection

Under Voltage Lock-out Protection

Over Voltage Protection
Power-on Reset and Start-up Timer
Test and Debug

Built-in digital and analog loop back modes for both Audio and Baseband Front-End
DAI port complying with GSM Rec.11.10
JTAG port for debugging embedded MCU

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3.1.3 MODEM Features

Radio Interface and Baseband Front End

GMSK modulator with analog I and Q channel outputs
10-bit D/A Converter for uplink baseband I and Q signals
14-bit high resolution A/D Converter for downlink baseband I and Q signals
Calibration mechanism of offset and gain mismatch for baseband A/D Converter and D/A

Converter

10-bit D/A Converter for Automatic Power Control
13-bit high resolution D/A Converter for Automatic Frequency Control
Programmable Radio RX filter with adaptive bandwidth control
Dedicated Rx filter for FB acquisition
2 Channels Baseband Serial Interface (BSI) with 3-wire control
Bi-directional BSI interface. RF chip register read access with 3-wire or 4-wire interface.
10-Pin Baseband Parallel Interface (BPI) with programmable driving strength
Multi-band support
Voice and Modem CODEC
Dial tone generation
Voice Memo
Noise Reduction
Echo Suppression
Advanced Sidetone Oscillation Reduction
Digital sidetone generator with programmable gain
Two programmable acoustic compensation filters
GSM/GPRS quad vocoders for adaptive multirate (AMR), enhanced full rate (EFR), full rate

(FR) and half rate (HR)

GSM channel coding, equalization and A5/1, A5/2 and A5/3 ciphering
GPRS GEA1, GEA2 and GEA3 ciphering
Programmable GSM/GPRS Modem
GSM Circuit Switch Data
GPRS Class 12

Voice Interface and Voice Front End

Two microphone inputs sharing one low noise amplifier with programmable gain and

automatic gain control (AGC) mechanism

Voice power amplifier with programmable gain
2nd order Sigma-Delta A/D Converter for voice uplink path
D/A Converter for voice downlink path
Supports half-duplex hands-free operation
Compliant with GSM 03.50

3.1.4 Multi-Media Features

LCD Interface

Dedicated Parallel Interface supports 2 external 8/9 bit Parallel Interface, and Serial

interface for LCM

For MT6223C, memory card interface is shared with LCD interface. And the memory card

control is available for MP3 playback

LCD Controller

Supports simultaneous connection to up to 3 parallel LCD or 2 serial LCD modules
Supports LCM format: RGB332, RGB444, RGB565, RGB666, RGB888
Supports LCD module with maximum resolution up to 176x220 at 24bpp
2 layer blending

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Supports hardware display rotation for each layer
Audio CODEC
Wavetable synthesis with up to 64 tones
Advanced wavetable synthesizer capable of generating simulated stereo
Wavetable including GM full set of 128 instruments and 47 sets of percussions
PCM Playback and Record
Digital Audio Playback
Audio Interface and Audio Front End
Supports I2S interface
High resolution D/A Converters for Stereo Audio playback
Stereo analog input for stereo audio source
Analog multiplexer for Stereo Audio
FM Radio Recording
Stereo to Mono Conversion

3.1.5 General Description

Figure3-1-2 details the block diagram of MT6223. Based on a dual-processor architecture,

MT6223 integrate both an ARM7EJ-S core and 2 digital signal processor cores. ARM7EJ-S is
the main processor that is responsible for running 2G and 2.5G protocol software. Digital signal
processors handle the MODEM algorithms as well as advanced audio functions. Except for
some mixed-signal circuitries, the other building blocks in MT6223 are connected to either the
microcontroller or one of the digital signal processor.

Specifically, both MT6223 consist of the following subsystems:

Microcontroller Unit (MCU) Subsystem - includes an ARM7EJ-S RISC processor and its

accompanying memory management and interrupt handling logics.

Digital Signal Processor (DSP) Subsystem - includes 2 DSP cores and their accompanying

memory, memory controller, and interrupt controller.

MCU/DSP Interface - where the MCU and the DSPs exchange hardware and software

information.

Microcontroller Peripherals - includes all user interface modules and RF control interface

modules.

Microcontroller Coprocessors - runs computing-intensive processes in place of

Microcontroller.

DSP Peripherals - hardware accelerators for GSM/GPRS/EGDE channel codec.
Voice Front End - the data path for converting analog speech from and to digital speech.
Audio Front End - the data path for converting stereo audio from stereo audio source
Baseband Front End - the data path for converting digital signal from and to analog signal

of RF modules.

Timing Generator - generates the control signals related to the TDMA frame timing.
Power, Reset and Clock subsystem - manages the power, reset, and clock distribution

inside MT6223

LDOs, Power-on sequences, swicthes and SIM level shifters.

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Figure.3-1-2 MT6223 BLOCK DIAGRAM

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3.2 Power Amplifier Module (SKY77518)

Figure.3-2-1 SKY77518 FUNCTIONAL BLOCK DIAGRAM

The SKY77518-21 is a transmit and receive front-end module (FEM) with Integrated Power
Amplifier Control (iPAC.) for dual-band cellular handsets comprising GSM900 and DCS1800
operation. Designed in a low profile, compact form factor, the SKY77518-21 offers a complete
Transmit VCO-to- Antenna and Antenna-to-Receive SAW filter solution. The FEM also supports
Class 12 General Packet Radio Service (GPRS) multi-slot operation.

The module consists of a GSM900 PA block and a DCS1800 PA block, impedance-matching

circuitry for 50 Ω input and output impedances, TX harmonics filtering, high linearity and low
insertion loss PHEMT RF switches, diplexer and a Power Amplifier Control (PAC) block with

internal current sense resistor. A custom BiCMOS integrated circuit provides the internal PAC
function and decoder circuitry to control the RF switches. The two Heterojunction Bipolar
Transistor (HBT) PA blocks are fabricated onto a single Gallium Arsenide (GaAs) die. One PA
block supports the GSM900 band and the other PA block supports the DCS1800 band. Both PA
blocks share common power supply pads to distribute current. The output of each PA block and
the outputs to the two receive pads are connected to the antenna pad through PHEMT RF
switches and a diplexer. The GaAs die, PHEMT die, Silicon (Si) die
and passive components are mounted on a multi-layer laminate substrate. The assembly is
encapsulated with plastic overmold.

Band selection and control of transmit and receive modes are performed using two external
control pads. The band select pad (BS) selects between GSM and DCS modes of operation.
The transmit enable (TX_EN) pad controls receive or transmit mode of the respective RF switch
(TX = logic 1). Proper timing between transmit enable (TX_EN) and Analog Power Control
(VRAMP) allows for high isolation between the antenna and TXVCO while the VCO is being
tuned prior to the transmit burst.

The SKY77518-21 is compatible with logic levels from 1.2 V to VCC for BS and TX_EN pads,
depending on the level applied to the VLOGIC pad. This feature provides additional flexibility for
the designer in the selection of FEM interface control logic.

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3.3 Transceiver Module (AD6548)

Figure.3-3-1 AD6548 FUNCTIONAL BLOCK DIAGRAM

3.3.1 General Descriptions

The AD6548/9 provides a highly integrated direct conversion radio solution that combines, on
a single chip, all radio and power management functions necessary to build the most compact
GSM radio solution possible. The only external components required for a complete radio
design are the Rx SAWs, PA, Switchplexer and a few passives enabling an extremely small
cost effective GSM Radio solution.

The AD6548/9 uses the industry proven direct conversion receiver architecture of the
OthelloTM family. For Quad band applications the front end features four fully integrated
programmable gain differential LNAs. The RF is then downconverted by quadrature mixers and
then fed to the baseband programmable-gain amplifiers and active filters for channel selection.
The Receiver output pins can be directly connected to the baseband analog processor. The
Receive path features automatic calibration and tracking to remove DC offsets.

The transmitter features a translation-loop architecture for directly modulating baseband
signals onto the integrated TX VCO. The translation-loop modulator and TX VCO are extremely
low noise removing the need for external SAW filters prior to the PA.

The AD6548/9 uses a single integrated LO VCO for both the receive and the transmit circuits.
The synthesizer lock times are optimized for GPRS applications up to and including class 12.
To dramatically reduce the BOM both TX Translational loop and main PLL Loop Filters are fully
integrated into the device.

AD6548 incorporates a complete reference crystal calibration system. This allows the
external VCTCXO to be replaced with a low cost crystal. No other external components are
required. The AD6549 uses the traditional VCTCXO reference source.

The AD6548/9 also contains on-chip low dropout voltage regulators (LDOs) to deliver

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regulated supply voltages to the functions on chip, with a battery input voltage of between 2.9V
and 5.5V. Comprehensive power down options are included to minimize power consumption in
normal use.

A standard 3 wire serial interface is used to program the IC. The interface features
low-voltage digital interface buffers compatible with logic levels from 1.6V to 3.0V.

The AD6548/9 is packaged in a 5mm × 5mm , 32-lead LFCSP package.

3.3.2 Features

Fully Integrated GSM Transceiver including

Direct Conversion Receiver

4 Differential LNAs
Integrated Active RX Channel Select Filters
Programmable Gain Baseband Amplifiers

Translation Loop Direct VCO Modulator

Integrated TX VCO and tank
External TX filters eliminated
Integrated Loop filter components

High performance multi band PLL system

Fast Fractional-N Synthesizer
Integrated Local Oscillator VCO
Fully Integrated Loop filters
Crystal Reference Oscillator & Tuning System (AD6548)

Power Management

Integrated LDOs allow direct battery supply connection

Small footprint

32-Lead 5 X 5 mm Chipscale Package

APPLICATIONS

Dual, Triple and Quad Band Radios

- GSM850, E-GSM 900, DCS1800 and PCS1900

- GPRS to Class 12- EDGE RX

3.3.3 Pin Descriptions

ORDERING
GUIDE

Model Temperature
Range

Package

AD6548BCPZ

-20°C to +85°C

LFCSP-32

AD6549BCPZ -20°C to +85°C LFCSP-32

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3.4 Memory Module (PF38F4050M0Y0CG)

Figure.3-4-1 PF38F4050M0Y0CG FUNCTIONAL BLOCK DIAGRAM

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The M18 family with synchronous PSRAM stacked product family encompasses multiple

M18 flash memory plus synchronous PSRAM die combinations and I/O interface options.

M18 is available as a Non-Multiplex or Address-Data Multiplex (AD-Mux) I/O interface option,
while the synchronous PSRAM is available only as a Non-Multiplex I/O interface.

The M18 is the latest generation of Numonyx™ StrataFlash® memory with highlighted
features like symmetrical block array, configurable burst lengths, automated device blank check,
security using OTP and zero-latency block lock. The M18 delivers up to 133 MHz synchronous
burst and page-mode read rates with multi-partitioning Read-While- Program and
Read-While-Erase operations. The synchronous PSRAM (Non-Mux I/O interface) is a
high-performance volatile memory operating at speeds up to 104 MHz with configurable burst
lengths. The PSRAM lower sixteen addresses can be routed to the data pins on the PCB board
to enable a flexible flash and PSRAM AD-Mux I/O interface device design. This stacked device
family features configurable output driver strength and 1.8 volt low-voltage operation in an
Numonyx™ Flash memory x16C or QUAD+ standard footprint and signal ballouts.

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