LG GX200 User manual

1
GX200
Service Manual
LG Electr
onics

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……………….19
3.1 Digital Main Processor( MT6235 )………..19
3.2 Power Amplifier Module( SKY77531 )…….27
3.3 Transceiver Module( AD6548 )…………...28
3.4 Bluetooth Module ( MT6601 )………….….30
3.5 Memory Module ( K5D12571CA-D090) ……...33
3.6 FM Radio Module (Si4708)…………..38
3.7 LCD Interface……………………….…40
3.8 SIM& Micro SD Card Interface….…...43
3.9 KEYPAD Interface………..…………...45
3.10 Battery Charging Block Interface…..46
3.11 Audio Interface……………….….…...47
3.12 Vibrator Interface….…………………49
3.13 Camera Interface…………………….50
4. TROUBLE SHOOTING…………...52
4.1 Power On Trouble…………………….52
4.2 SIM Card Trouble……………………..58
4.3 Vibrator Trouble……………………….61
4.4 RTC Trouble…………………………...63
4.5 SIM1 SIM 2 LED Trouble…………….65
4.6 Sub Key LED backlight Trouble……..67
4.7 LCD Backlight Trouble……………….70
4.8 LCM Trouble…………………………..73
4.9 Charging Trouble……………………..77
4.10 Master Microphone Trouble……......81
4.11 Receiver Trouble……………...…….84
4.12 Camera Trouble……………………..87
4.13 Key Board Trouble……………….....90
4.14 Flash LED Trouble………………….95
4.15 Bluetooth Voice Trouble………….98
4.16 Speaker Trouble…………………101
4.17 Headphone Trouble……………..104
4.18 T-Flash Trouble…………………..109
4.19 USB Download Trouble………....112
4.20 Bluetooth Trouble………………..117
4.21 FM RECEIVER Trouble…………122
4.22 RF TRANSCEIVER +AP Trouble124
5. DOWNLOAD………………...…132
5.1 Download setup…………………...132
5.2 Download Process………………...133
6. BLOCK DIAGRAM…………….141
7. CIRCUIT DIAGRMA……………142
8. BGA IC PIN Check…………….155
9. PCB LAYOUT…………………..158
10.ENGINEERING MODE……….160
11. CALIBRATION………………..168
11.1 Test Equipment Setup…………..168
11.2 Calibration Steps………………...169
12. STAND ALONE TEST……….208
12.1 Test Configuration……………….208
12.2 META tool Install process………209
12.3 Rx Test……………………………212
12.4 Tx Test…………………………….217
13. EXPLODED VIEW&
REPLACEMENT PART LIST…….219
13.1 Exploded View……………………219
13.2 Replacement Part list.…………....221

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1. INTRODUCTION
1.1Purpose
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.
F. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look

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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.

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2. PERFORMANCE
2.1 H/W Features
Solution MT6235B Media Tek
Type Bar type
Antenna Type Internal (Quad-Band) 850/900/1800/1900-
Benchmark (??)
Main Display 2.0” 176x220 QCIF LGIT
GPRS Class 10
MMS Yes, 1.1
Camera 1.3M FF Abico
Flash Light Yes, / no Torch Definition check ??
Battery 1500mAh Li-ion inner pack Wisepower
Audio player Yes MP3/AAC/WAV
FM Receiver Yes , US/Europe band support (87.5~108MHz) ---
reserve embedded FM
antenna contact pin on
PCB
MPEG4/H.263 Yes (support 3GP)
H.264 No(no support)
AAC Yes
AAC+ Yes
WMA Yes(TBD) LGE will take care of
Microsoft License if
needed
FM alarm Yes
Scheduled FM recording Yes
MP4 for incoming call/ power on off
animation and screen saver
Yes
Loud Speaker Yes
Audio player--real resuming Yes, for MP3 only
Video recording Yes
Memory Size 1G + 256Mb NAND Boot
Internal NAND Yes (Maximum is 80MB for
user memory )
Memory Card Micro SD Up to 8GB
Bluetooth Yes, version 2.0 W/O EDR.
USB Yes, USB 2.0 full speed
WAP Yes, 2.0 Obigo Q03C
Java Yes
SIM Status LED YES, Green 1pcs, Red 1pcs (TBD) TBD by UI Scenario
MPEG4 caller ID Yes TBD
OTA Yes TBD
In flight mode Yes TBD

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2.2 S/W Features
2-2-1 System Specification
Item Target Specification
Form Factor Bar Type
Size TBD
Weight TBD
Battery 3.7V, 1500mAh Li-Ion
Talk Time 4 hrs 52 min (292 min) @1500mAh @GSM900 PCL 10
400 min @1500mAh @GSM900 PCL 10
Standby Time 428 hrs@1500mAh @ Paging period 9;
500hrs@1500mAh @ Paging period 9
Antenna Embedded type
LCD 2.0” 176x220 QCIF
FM Yes,
Camera 1.3M pixel FF
Landscape mode by default setting
Back Light White LED
Keypad Backlight Color Blue TBD, White(confirm)
Vibrator Yes
Loud Speaker Yes, 17
Φ
ΦΦ
Φ 1ea, out put : 0.8W over
Microphone Yes
Earphone Jack No
SIM Socket Yes, 1.8/3.0V
Volume Key Side key (up/down)
Travel Adaptor
Standard Battery (1500mA, Li-Ion)
Stereo Headset with button (FM)
Basic Accessory
USB Data Cable (Option)

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2-2-2 General Features
Function Target Specification
RSSI (5 Level, 1~5) (7 Level, 0~6) (7 Level, ‘no service, 0, 1, 2, 4, 5, 7’)
Battery Indicator (4 Level, 0~3)
Battery Indicator Voltage
4 3 3.88
±
±±
±
0.03V
3 -> 2 3.72
±
±±
±
0.03V
2 -> 1 3.62
±
±±
±
0.03 V
Battery Indicator
1 -> 0 3.54
±
±±
±
0.03 V
Antenna display (7 level settings and the corresponding RSSI)
Icons Indicator
Basic Display
Others reference to "Phone Personalization Setting"
Speech Codec
FR/EFR/HR/AMR
Number of Keys: 24 Key (include 12 alphanumeric/number keys (0-9,#,*), 4 function
keys, 5 way navigation keys, 3 side keys)
Soft Function Keys : 2
Keypad
International Access (+)(long 0)
User Selectable and Customizable Profiles (7 4 profiles: General, Meeting, Outdoor, Vibrate
only, Headset, Silent, Bluetooth Normal, Outdoor, Silent, Flight mode)
Auto-detect and activated profiles (1 profile: Headset)
Key Tone
Key Tone Volume (78Level – 0 ~ 7, 0 for Mute) (6Level - 0 ~ 5, 0 for Mute)
Key tone setting (4 sets: Silent, Click, Piano Tone, English/Russia Human voice)
(DTMF, English)
Ring Tone
Ring Tone Volume (78Level – 0 ~ 7, 0 for Mute) (6Level - 0 ~ 5, 0 for Mute)
Built-in Ring Tone Pattern: 20
Customizable Ring Tone Link: 5
Music player volume level: 7 Levels, 0~6, 0 for Mute
Intelligent Call Alert
Digits To Sound Synthesizing
Alert Type
User Profile
(Audio
Settings)
65 Types - Ring, Vibration Only, Vibration and Ring, Ring after vibration, Silent Light Only,
Beep Once

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Power On Tone Power on/off tones
Built-in Ring Tone Pattern: 3 (include Silent) Built-in Ring Tone Pattern: 4
Power Off Tone
Built-in Ring Tone Pattern: 3 (include Silent)
Message Tone
Built-in Ring Tone Pattern: 8 (include Silent) 7
Warning Tone
Built-in Ring Tone Pattern: 1 (Only On/Off operation)
Error Tone
Built-in Ring Tone Pattern: 1 (Only On/Off operation)
Camp On Tone
Built-in Ring Tone Pattern: 1 (Only On/Off operation)
Connect Tone
Built-in Ring Tone Pattern: 1 (Only On/Off operation)
Status LED
Built-in Lighting Pattern: 2 (None, Pattern 1)
Charger-in Status LED
Built-in Lighting Pattern: 2 (None, Pattern 1)
Answer Mode
Any Key Answer, Send Key only
Auto (Only available for headset mode while headset plugged in) TBD
Calendar - Month view onlyPersonal
Information
Management To do list - 6 fields (Date, Start time, End time, Note, Alarm, Repeat)
Alarm
5 sets of Alarm
4 major fields for each set - On/Off, Time, Repeat type, Audio option
World Clock
Cities list: China(52),IND(54),CIS(68) cities
Daylight saving time support: activated by user selection
Home city set
Calculator
Addition, Subtraction, Multiplication, Division
Unit Converter
Weight, Length, Currency Converter
Memo
To do
Health
Tools and
Utilities
BMI, Menstrual
Greeting TextPhone
Personalization
Setting
Shortcuts

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Flight Mode
Time and Date Setting
Wallpaper
Sceen Saver
Power On Animation
Power Off Animation
LCD Backlight
PLMN/Service Indicator (Display of PLMN Name/Service Provider Name from SIM)
Date Time Display
Own Number Display
Setting
Restore Factory Default Setting
Security Phone Lock
SIM/Key Lock
Engine
T9
Support Language
Depends on customer and market requirement.
Total supported languages will be limited to memory condition.
Input Method
Predictive word input
5 Java Games, provided by LGE. TBD
Game
Settings:
BGM, Sound Effect, Vibration
Anti-theft
Mobile Tracker
(ATMT)
Provide this feature by following LG spec. (GSM_VVLT 0 5_LMT_20071117_1.ppt)

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2-2-3 GSM/GPRS Features
Function Target Specification
GPRS GPRS Multi slot Class 10
Data Service BS 24 - 26 (2400-9600 bit/s), asynchronous, non-transparent, UDI.
CSD rate up to 9.6K bit/s
Last Dialed Number: 40
Last Received Number: 40
Last Missed Number: 40
Call History
Scratch Pad Memory (Save an input number in call): 1
Last Call Time
Total Dialed Call Time
Total Received Call Time
Last Call Cost
Total Cost
Max Cost
Call Cost
Price Per Unit
Last Sent (unit in Byte)
Last Received (unit in Byte)
All Sent (unit in Byte)
GPRS Counter
All Received (unit in Byte)
Call Swap
Call Retrieve
Automatic Redial
Speed Dialing
Last Number Redial
Call Management
Support 50-digits Dialing Number from Idle, Phonebook in handset, and Call Log
(This feature will not be realized in LG33 project.)
1. Idle dial screen: OK
2. Phonebook (Phone): OK
3. Phonebook (SIM): Have limitation, depend on SIM card.
4. Call Log: OK
5. SMS: support 20-digit
6. MMS: support 50-digit
Call Hold
Call Waiting
Calling Line Identity Presentation
Calling Line Identity Restriction
Connected Identification Restriction
Call Divert All voice Calls
Call Divert if unreachable
Call Divert if no answer
Call Divert if busy
Call Divert all data calls
Call Related
Supplementary
Services
Cancel all divert

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Call Barring All Outgoing Calls
Call Barring All Outgoing International Calls
Call Barring All outgoing International except home
Call Barring All incoming Calls
Call Barring All incoming Calls when roaming
Multi-party Call (up to 7 calls, 5 in conference, 1 on held, 1 waiting)
Line switching (Line1, Line2)
Call reminder (Off, Single, Periodic)
Closed User Group
Quick Search (Notice: Quick search function only works in Phonebook, SMS and
MMS. In other application, this phone supports regular search.)
Alpha Store and Recall
Access Phone Book in call
Copy & Move
Fixed Dial Number
Service Dial Number
Speed Dial Number
SOS Number
Entry: 1000 names (12 fields – Name, Mobile, Home, Company name, Email
address, Office number, Fax number, Birthday, Associate Picture, Associate
Video, Associate Sound, Caller group) ---- calculate the memory usage (60KB)
Caller Group-5 caller group- Friends, Family, VIP, Business, Others (6 fields –
Name, Ring, Picture, LED pattern, Video, Member list)
Own Numbers: User can change the own numbers of handset. (Sets of own
numbers depends on SIM)
vCard: (Edit, Send and Receive. 7 fields – Name, Mobile, Home, Company
Name, Email Address, Office Number, Fax Number)
Phone Book
Note: This phone doesn’t support phone number search.
SMS
Standard SMS
SMS Reply Path
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
Basic text-only SMS as described in 3GPP TS 23.040 R5
Notice: This phone doesn’t support video ring tone via SMS
SMS Character Sets Support
GSM7
UCS-2
EMS
EMS Standard as described in 3GPP TS 23.040 R5 excluding WVG
EMS Text Format
Message
Text Style: Normal, Bold, Italic, Underlined, Strikethrough

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Text Alignment: Left, Right, Center
Text Size: Normal, Large, Small
EMS Image Support
1-bit small image 16x16 pixels black and white
1-bit large image 32x32 pixels black and white
1-bit variable image in single SMS packet
Extended black and white 1-bit image up to 255x255 pixels
Extended 6-bit image up to 255x255
Pre-defined animation
User-defined small animation 8x8 pixel 4-frame black and white
User-defined large animation 16x16 pixel 4-frame black and white
Pre-defined sound
User-defined i-Melody up to 128 bytes
LZSS compression algorithm
Re-use extended object
Object Distribution
User Prompt Indicator
Hyperlink format element
Extended Object Distribution
Notice: This mobile doesn’t support Nokia smart message format (including
WBMP), only support *.ems format" subject to Nokia smart message license
EMS Character Sets Support
GSM7
UCS-2
EMS Miscellaneous
SMS Concatenation ( 8 Segments for MT/MO)
SMS Compression
MMS
MMS Standard as described in 3GPP TS 23.140 V4.8.0
Extract media from Message
Insert Media into message
OTA provisioning partially support (Network Profile setting
Auto download mode
Manual download mode
Operator can pre-configure the delivery mode
MMS notification with icon or Pop-up message display)
MMS Message Format
MMS SMIL (A subset of SMIL descried in the MMS Conformance Document 1.2)
- maximal size for each MMS is limited by300KB
MMS Character Sets Support
US-ASCII

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Unicode
ISO-8859-1
UTF-16
UTF-8
MMS Images Support
WBMP Wireless bitmap
GIF87
GIF89a
JPEG
MMS Sound Formats Support
WAV
AMR
MIDI
MP3
i-Melody
MMS Miscellaneous
Multipart binary MIME
Storage
Separated Inbox folder for SMS and MMS
Separated Outbox folder for SMS and MMS
Total 300 SMS in the storage of phone plus SIM including Inbox and Outbox
( Phone could supports 260sets SMS including Inbox and Outbox. The max
imum
SMS stored in SIM are 40sets. It means the actual SMS quantities in Inbox and
Outbox are among 260 to 300. )[p1]
Total 100 MMS in the phone storage including Inbox, draft and Outbox
Notice: Total MMS count need depends on user memory space.
Common Operation
Write Message
Read Message
Edit Message
(For MMS, Edit only conformance messages, unknown media not supported,
unknown SMIL not supported)
Reply Message
Send Message
Delete Message
Forward Message
Use Sender's Number
Message Templates
Extract media from Message (MMS/EMS)
Store Media (MMS/EMS)
Delete Media (MMS/EMS)
Cell Broadcast Read Cell Broadcast

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Cell Broadcast Mode: Receive On/Off
Cell Broadcast Message Language
Channel Setting
Automatic Network Selection
Manual Network Selection
Network Service Status
Preferred Network (User definition)
Network
GPRS connection mode selection: Always, When Needed
Common Operation
SIM Application Toolkit (Release 98 Class 2 certified)
Prepaid SIM operation,
Security
PIN
SIM
Personalization (Service provider lock, Network lock)
DTMF SignalingDTMF
DTMF Enable & Disable
2-2-4 Multimedia Features
Function Target Specification
Image size:
128X160, 160X128, 320X240, 640X480,
Continuous Shot
9 shot, 5 shot, 3 shot, OFF
Zoom: 1x ~ 4x
Image Quality:
High, Normal, Low
White Balance:
Auto, Daylight, Tungsten, Fluorescent, Cloud, Incandescence
Shot: Three Shot Sounds
EV: -4 ~+4
Screen Mode:
Auto, Night
Banding: 60Hz/50Hz
Camera
Effect settings: (Total 14 13 types)
Normal, Grayscale, Sepia, Sepia Green, Sepia Blue,
Color Invert, Gray Invert, Blackboard, Whiteboard,
Copper Carving, Blue Carving, Embossment, Contrast, Sketch

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No. of the Stick Frames: 3
Frame 1, Frame 2, None
Stick Frame Only can be used while image size is 128WX160H 240WX320H
Storage Selection:
Phone, Memory card
(Only available when external memory card supported)
Delay timer:
Off/ 5/ 10/ 15 Sec
Thumbnail supported
Browse Style:
List, Matrix
View
Forward:
To Wallpaper, Phonebook, Picture ID, Screen Saver, Power On Display, Power
Off Display, MMS, Bluetooth
Rename
Delete
Delete All
Sort:
By Name, Type, Time, Size, None
Storage Selection:
Get list from Phone, Memory card
(Only available when external memory card supported)
Image Format Support
JPEG Baseline
GIF87a
GIF89a
WBMP
Image Viewer
BMP
Play
Pause
Resume
Stop
Next
Previous
Fast forward
Rewind
Storage Selection:
Get list from Phone, Memory card
(Only available when external memory card supported)
Auto-Generate Playlist
Music Player
Skin: 2 skins

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Repeat Mode:
Off, One Song, All Songs
Shuffle Play
Background Play
Equalizer Setting: 8 sets
Normal, Bass, Dance, Classical, Treble, Party, Pop, Rock
Volume Control:
7 level (0 ~ 6, 0 for Mute) 21 level (0~20, 0 for Mute)
Playlist Edit:
Add, Remove, Remove All
Sound Format Support
MP3
AMR
MIDI
WAV
AAC
Play
Pause
Stop
Fast forward
Rewind
Speed Control:
X1, X2, X4, X8, X1/2
Forward:
To Phonebook, Screen Saver, Power On Animation, Power Off Animation, MMS,
Bluetooth
Rename
Delete
Delete All
Sort:
By Name, Type, Time, Size, None
Storage Selection:
Get list from Phone, Memory card
Video Player
Volume Control:
7 level (0 ~ 6, 0 for Mute) 21 level (0~20, 0 for Mute)
White Balance:
Auto, Daylight, Tungsten, Fluorescent, Cloud, Incandescence
EV: -4 ~+4
Video Recorder
Night Mode:
On/Off

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Banding: 60Hz/50Hz
Video Quality:
Fine, High, Normal, Low
File Size Limit:
No Limit, 95KB, 195KB, 295KB,
Record Time Limit:
No Limit, 15 sec, 30 sec, 60 sec
Record Audio:
On/Off
Encode Format:
MPEG4, H.263
Effect settings: (Total 14 13 types)
Normal, Grayscale, Sepia, Sepia Green, Sepia Blue,
Color Invert, Gray Invert, Blackboard, Whiteboard,
Copper Carving, Blue Carving, Embossment, Contrast, Sketch
Storage Selection:
Phone, Memory card
(Only available when external memory card supported)
Record
Pause
Resume Recording
Stop
Storage Selection:
Phone, Memory card
(Only available when external memory card supported)
Encode Format:
WAV, AMR
Record
Pause
Resume Recording
Sound Recorder
Stop
Edit
Play
Save
Instrument Selection: 10 types
Piano, Gui
tar, Violin, Saxophone, Steel Drums, Flute, Harmonica, Trumpet, Music
Box, Xylophone
Play Speed:
Fast, Normal, Slow
Melody Compose
[Notice] Melody composer only support one instrument in one i
melody file, so the
last chosen instrument will be used to play this imelody file

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Frequencies: 87.5 ~ 108.0
Skin: 2 skins
User definable Preset Channel List
Channel Auto Search
Background Play
Record
Record Format:
AMR, WAV
Record Storage:
Phone, Memory Card
(Only available when external memory card supported)
FM Radio
Preset Channel List generated by auto search
MIDP 2.0
CLDC 1.1
JAVA
Memory Limit 1MB 2MB
Support JSR 139,118,120,135,185
QQ, MSN, Yahoo, Google (Java Application)
Support Text viewer (txt only)
2-2-5 Connectivity Features
Function Target Specification
WAP 2.0 Spec.
WAP Push OTA/Message
WAP Provisioning Service
CSD/GPRS data connection
Bookmark
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
Support OTA push and push message
OTA Provisioning & OTA download
WAP
Supports WML, WCSS, XHTML mp
Version 2.0 (w/o EDR)Bluetooth
Profile: GAP,SDAP,DUN,SPP,HSP,HFP,OPP,FTP,A2DP, AVRCP,BPP
Mass Storage Device 2.0
USB
Virtual COM

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3.TECHNICAL BRIEF
3.1 Digital Main Processor
Figure.3-1-1 MT6235 FUNCTIONAL BLOCK DIAGRAM

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3.1.1 System Overview
MT6235 is a highly-integrated and extremely powerful single-chip solution for
GSM/GPRS/EDGE mobile phones.
Based on the 32-bit ARM926EJ-STM RISC processor, MT6235’s superb processing power,
along with high bandwidth architecture and dedicated hardware support, provides an
unprecedented platform for high performance GPRS/EDGE Class 12 MODEM application.
Overall, MT6235 presents a revolutionary platform for mobile
devices.
.
Platform
MT6235 is capable of running the ARM926EJ-STM RISC processor at up to 208 MHz, thus
providing fast data processing capabilities. In addition to the high clock frequency, separate
CODE and DATA caches are also included to further improve the overall system efficiency.
For large amounts 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 high performance platform for mobile applications, hardware flash content
protection is also provided to prevent unauthorized porting of the software load to protect the
manufacturer’s development investment.
Memory
To provide the greatest capacity for expansion and maximum bandwidth for data intensive
applications such as multimedia features, MT6235 supports up to 4 external state-of-the-art
devices through its 8/16-bit host interface.High performance devices such as Mobile SDRAM and
Cellular RAM are supported for maximum bandwidth.Traditional devices such as burst/page
mode flash, page mode SRAM, and Pseudo SRAM are also 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 chips 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 the supply voltage down to 1.8V. The driving strength is
configurable for signal integrity adjustment.
Multi-media
The MT6235 multi-media subsystem provides a connection to a CMOS image sensor and
supports a resolution up to 2.0 Mpixels. With its high performance application platform, MT6235
allows efficient processing of image and video data.
In addition to image and video features, MT6235 utilizes high resolution DAC, digital audio, and
audio synthesis technology to provide superior audio features for all future multi-media needs.
Connectivity and Storage
To take advantage of its incredible multimedia strengths, MT6235 incorporates myriads of
advanced connectivity and storage options for data storage and communication. MT6235
supports UART, Fast IrDA, USB 2.0, SDIO,Bluetooth, Touch Screen Controller, WIFI Interface,
and MMC/SD/MS/MS Pro storage systems. These interfaces provide MT6235 users with the
highest degree of flexibility in implementing solutions suitable for the targeted application.
To achieve a complete user interface, MT6235 also brings together all the necessary
peripheral blocks for a multi-media GSM/GPRS/EDGE phone. The peripheral blocks include the
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 much better configurability and bandwidth for multi-media products, an
additional 18-bit parallel interface is incorporated. This interface enables connection to LCD
panels as well as NAND flash devices for additional multi-media data storage.