LG GB175 User manual

1
GB175
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………………16
3.1 Digital Main Processor(MT6225)……….16
3.2 Power Amplifier Module(SKY77518)…....23
3.3 Transceiver Module(AD6548)…………..24
3.4 PMIC (MT6318)……………………….26
3.5 Memory Module (PF38F4050M0Y0CG)…….28
3.6 FM Radio Module (Si4708)…………..32
3.7 Antenna Switch Module (B9308)……...34
3.8 LCD Interface……………………….…35
3.9 SIM& Micro SD Card Interface…..…..37
3.10 KEYPAD Interface…………………..38
3.11 Battery Charging Block Interface…..39
3.12 Audio Interface……………….….…..40
3.13 Vibrator Interface….………………...42
4. TROUBLE SHOOTING…………..43
4.1 Power On Trouble…………………….43
4.2 SIM Card Trouble……………………..45
4.3 Vibrator Trouble……………………….47
4.4 Keypad Trouble……………………….48
4.5 RTC Trouble…………………………...50
4.6 Key Backlight Trouble………………...53
4.7 LCM Backlight Trouble……………….56
4.8 LCM Trouble……………….………….58
4.9 Microphone Trouble…………………..60
4.10 Receiver Trouble…………………….62
4.11 Speaker Trouble……………………..64
4.12 Headphone Trouble…………………66
4.13 Charging Trouble…………………….69
4.14 FM Radio Trouble…………………...71
4.15 RF Trouble…………………………...73
5. DOWNLOAD………………...…….78
5.1 Download setup………………………78
5.2 Download Process……………………79
6. BLOCK DIAGRAM……………….87
7. CIRCUIT DIAGRMA……………...88
8. BGA IC PIN Check……………….96
9. PCB LAYOUT……………………..99
10.ENGINEERING MODE…………101
11. CALIBRATION………………….105
11.1 Test Equipment Setup……………..105
11.2 Calibration Steps…………………...106
12. STAND ALONE TEST…………145
12.1 Test Configuration………………….145
12.2 META tool Install process…………146
12.3 Rx Test………………………………149
12.4 Tx Test……………………………....153
13. EXPLODED VIEW&
REPLACEMENT PART LIST……..155
13.1 Exploded View……………………..155
13.2 Replacement Part list..…………....157

-3-
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.

-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 MT6225 Media Tek / AIT
Form Factor Bar type
Dimension (mm) 103 x 46 x 13.65
RF Band Dual Band 900/1800 Internal Antenna
Data GPRS Class 10
Main Display 1.5” TFT 65K color, 128x128 Pixels
Battery 950 mA h Same as LG6/7
Audio player Yes MP3/AAC/(AAC+ w/o DRM)
FM Receiver Yes , US/Europe
band(87.5~108MHz)
Loud Speaker Yes
Memory Size 256Mb NOR Flash +64Mb PSRAM 6225 support 1.8 or not
User Memory Yes 6M Bytes
Memory Card Yes Micro SD
Scheduled FM recording Yes
FM as alarm Yes
Embedded FM antenna Yes Pogo pin contact FPC type
FM Antenna on Battery cover.
Audio player--real resuming Yes For MP3 only
USB Yes
Slave 1.1
WAP Yes
V2.0
Java Yes
DRM No OMA DRM v1.0
Music Equalizer Yes Follow MTK
In flight mode Yes

-6-
2.2 S/W Features
2.2.1 General Features
Function Target Specification Parameter Support
Basic Display RSSI (6 Level, 0~5) Y
Battery Indicator (4 Level, 0~3) Y
Icons Indicator Y
Others reference to "Phone Personalization
Setting"
Y
Speech Codec FR/EFR/HR/AMR Y
Keypad Number of Keys: 21Key (include 12
alphanumeric/number keys (0-9,#,*), 4
function keys, 5 way navigation keys)
Y
Clear key N
International Access (+)(long 0) Y
User Profile
(Audio Settings)
User Selectable and Customizable Profiles
(profiles: Normal, Silent, Outdoor, Flight
mode)
Y
Auto-detect and activated profiles Y
Key Tone
Key Tone Volume (6 Level - 0 ~ 5, 0 for Mute) Y
Key tone setting (4 sets: Silent, Click, Tone,
English Human voice)
Y
Ring Tone
Ring Tone Volume (6 Level - 0 ~ 5, 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
5 Types - Ring, Vibrate, Ring & vibrate, Ring
after vibrate, Silent
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: 5 Y
Warning Tone
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

-7-
Function Target Specification Parameter Support
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
Personal Information
Management
Calendar - Month view only Y
To do list - 6 fields (Date, Start time, End time,
Note, Alarm, Repeat)
Y
Tools and Utilities
Alarm
5 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
BMI, Menstrual Y
Phone Personalization
Setting
Greeting Text Y
Shortcuts Y
Flight Mode Y
Time and Date Setting Y
Wallpaper Y
Screen Saver N
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
Input Method
Engine
T9 Y

-8-
Function Target Specification Parameter Support
Support Language
Depends on customer and market requirement.
Total supported languages will be limited to
memory condition.
Y
Predictive word input Y
Game 3 embedded Java game Y
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
Call History Last Dialed Number : 50 Y
Last Received Number : 50 Y
Last Missed Number : 50 Y
Scratch Pad Memory(Save an input number
in call) : 1
Y
Call Cost Last Call Time Y
Total Dialed Call Time Y
Total Received Call Time Y
Last Call Cost Y
Total Cost Y
Max Cost Y
Price Per Unit Y
GPRS Counter Last Sent (unit in Byte) Y
Last Received (unit in Byte) Y
All Sent (unit in Byte) Y
All Received (unit in Byte) Y
Call Management Call Swap Y
Call Retrieve Y
Automatic Redial Y
Speed Dialing Y
Last Number Redial Y
Call
Related Supplementa
ry Services
Call Hold Y
Call Waiting Y
Calling Line Identity Presentation Y
Calling Line Identity Restriction Y

-9-
Function Target Specification Parameter Support
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
Line switching (Line1, Line2)
Call reminder (Off, Single, Periodic)
Closed User Group
Y
Phone Book
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
Speed Dial Number Y
SOS Number Y
Entry : 1000 names (10 fields: Name,
Mobile, Home, Office, Fax, Email,
Anniversary, Ringtone, Group, memo.)
Y
Caller Group-7caller group- Friends,
Family, VIP, Colleague, Group1, Group2,
No group
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
Message
SMS
Y
Standard SMS Y
SMS Reply Path Y

-10-
Function Target Specification Parameter Support
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
EMS Image 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

-11-
Function Target Specification Parameter Support
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
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 150 SMS in the storage of phone plus
SIM including Inbox, outbox, sent and draft
Y

-12-
Function Target Specification Parameter Support
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
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
Cell Broadcast Read Cell Broadcast Y
Cell Broadcast Mode: Receive On/Off Y
Cell Broadcast Message Language Y
Channel Setting Y
Network Automatic Network Selection Y
Manual Network Selection Y
Network Service Status Y
Preferred Network (User definition) Y
GPRS connection mode selection: Always,
When Needed
Y
SIM
Common Operation Y
SIM Application Toolkit (Release 98 Class 2
certified)
Y
Prepaid SIM operation Y
Security
Y
PIN Y
Personalization (Service provider lock,
Network lock)
Y
DTMF DTMF Signaling Y
DTMF Enable & Disable Y

-13-
2.2.3 Multimedia Features
Function Target Specification Parameter Support
Image Viewer
My stuff / photo
Thumbnail supported Y
Browse Style:
List, Matrix
Y
View Y
Forward:
To Wallpaper, Phonebook, Screen Saver,
Power On Display, Power Off Display, MMS
Y
Rename Y
Delete Y
Delete All Y
Sort:
By Name, Type, Time, Size, None,Date
Y
Storage Selection:
Get list from Phone, Memory card
(Only available when external memory card
supported)
Y
Image Format Support Y
JPEG Baseline Y
GIF87a Y
GIF89a Y
WBMP Y
BMP Y
Music Player
Music Player
Play Y
Pause Y
Resume Y
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:
All, All off, One, One off
Y
Shuffle Play Y
Background Play Y
Equalizer Setting: 8 sets
Normal, Bass, Dance, Classical, Treble, Party,
Pop, Rock
Y

-14-
Function Target Specification Parameter Support
Volume Control:
21 level (0 ~ 20, 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
AAC+ Y
Sound Recorder Storage Selection:
Phone, Memory card
(Only available when external memory card
supported)
Y
Encode Format:
AMR
Y
Record Y
Pause Y
Resume Recording Y
Stop Y
Melody Compose Edit N
Play N
Save N
Instrument Selection: 10 types
Piano, Guitar, Violin, Saxophone, Steel
Drums, Flute, Harmonica, Trumpet, Music
Box, Xylophone
N
Play Speed:
Fast, Normal, Slow
N
[Notice] Melody composer only support
one instrument in one melody file, so the
last chosen instrument will be used to play
this melody file
N
FM Radio 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

-15-
Function Target Specification Parameter Support
Record Storage:
Phone memory, SD card (Option, follow
common UI)
(Only available when external memory card
supported)
Y
Preset Channel List generated by auto search Y
JAVA MIDP 2.0 Y
CLDC 1.0 Y
Heap Memory Limit 2MB
Support JSR 139,118,120,135,185
Y
2.2.4 Connectivity Features
Function Target Specification Parameter Support
WAP 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
Supports WML, WCSS, XHTML mp Y
USB Mass Storage Device Y
Virtual COM (PCSync) Y

-16-
3.TECHNICAL BRIEF
3.1 Digital Main Processor
Figure.3-1-1 MT6225 FUNCTIONAL BLOCK DIAGRAM

-17-
3.1.1 System overview
The MT6225 is a highly integrated single chip solution for GSM/GPRS phone. Based on 32-bit
ARM7EJ-STM RISC processor, MT6225 features not only high performance GPRS Class 12
MODEM but is also designed with support for the wireless multi-media applications, such as
advanced display engine, synthesis audio with 64-tone polyphony, digital audio playback, Java
acceleration, MMS and etc. Additionally, MT6225 provides varieties of advanced interfaces for
functionality extensions, like 3-port external memory interface, 3-port 8/16-bit parallel interface,
NAND Flash, IrDA, USB and MMC/SD/MS/MS Pro.
Platform
MT6225 is capable of running the ARM7EJ-STM RISC processor at up to 104 MHz, thus
providing fast data processing capabilities. In addition to the high clock frequency, a separate
CODE cache is also added 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.
External Memory Interface
To provide the greatest capacity for expansion and maximum bandwidth for data intensive
applications such as multimedia features, MT6225 supports up to 3 external state-of-the-art
devices through its 16-bit host interface. High performance devices such as Mobile RAM 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. The data bus also employs retention technology to
prevent the bus from floating during a turn over.
Multi-media Subsystem
In order to provide more flexibility and bandwidth for multi-media products, an additional 8/16
bit parallel interface is incorporated. This interface is designed specially for support with Camera
companion chip as well as LCD panel. In addition, MT6225 has camera YUV interface that can
connect to CMOS sensor of resolution up to VGA. Moreover, it can connect NAND flash device to
provide a solution for multi-media data storage. For running multi-media application faster,
MT6225 integrates also several hardware-based engines. With hardware based Resizer and
advanced display engine, it can display and combine arbitrary size of images with up to 4
blending layers.
User Interface
For user interactions, the MT6225 brings together all necessary peripheral blocks for
multi-media GSM/GPRS phone. It comprises the Keypad Scanner with capability of
multiple key pressing, SIM Controller, Alerter, Real Time Clock, PWM, Serial LCD Controller and
General Purpose Programmable I/Os. For connectivity and data storage, the
MT6225 consists of UART, IrDA, USB 1.1 Slave, SDIO and MMC/SD/MS/MS Pro.
Audio Interface
Using a highly integrated mixed-signal Audio Front-End,the MT6225 architecture 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, MT6225 also provides Stereo
Input and Analog Mux.
MT6225 supports AMR codec to adaptively optimize speech and audio quality. Moreover,
HE-AAC codec is implemented to deliver CD-quality audio at low bit rates.

-18-
Overall, MT6225’s audio features provide a rich platform for multi-media applications.
MT6225 GSM/GPRS Baseband Processor Data Sheet 1.12
Radio Interface
MT6225 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 compatibility control
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. MT6225 achieves
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 debugger interface, the MT6225 provides developers with a wide set of
options for choosing ARM development kits from supports of thirty parties. For
security reason, JTAG interface can be disabled by programming internal OTP (one-time
programmable) fuse.
Power Management
The MT6225 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, MT6225 is also fabricated in
advanced low leakage CMOS process, hence providing an overall ultra low leakage solution.
Package
The MT6225 device is offered in a 12mm×12mm, 264-ball, 0.65 mm pitch, TFBGA package.
3.1.2 Platform Feature
General
Integrated voice-band, audio-band and base-band analog front ends
TFBGA 12mm×12mm, 264-ball, 0.65 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
ARM7EJ-S Operating frequency: 26/52/104 MHz
Dedicated DMA bus
14 DMA channels
48K Bytes on-chip SRAM
72K Bytes MCU dedicated Tightly Coupled Memory
16K Bytes Code cache
On-chip boot ROM for Factory Flash Programming
Watchdog timer for system crash recovery
2 sets of General Purpose Timer
Circuit Switch Data coprocessor
Division coprocessor
External Memory Interface
Supports up to 3 external devices
Supports 16-bit memory components with maximum size of up to 64M Bytes each
Supports Mobile RAM and Cellular RAM
Supports Flash and SRAM with Page Mode or Burst Mode
Supports Pseudo SRAM

-19-
Industry standard 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
6-row × 7-column keypad controller with hardware scanner
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
4~10 external interrupt lines
Connectivity
3 UARTs with hardware flow control and speed up to 921600 bps
IrDA modulator/demodulator with hardware framer supports SIR mode of operation
Full-speed USB 1.1 Device controller
Multi Media Card/Secure Digital Memory Card/Memory Stick/Memory Stick Pro host
controller
Supports SDIO interface for SDIO peripherals as well as WIFI connectivity
DAI/PCM and I2S interface for Audio application
Security
Supports security key for code protection
143-bit unique/secret chip ID
Power Management
Power Down Mode for analog and digital circuits
Processor Sleep Mode
Pause Mode of 32KHz clocking at Standby State
7-channel Auxiliary 10-bit A/D Converter for charger and battery monitoring and photo sensing
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
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
2 Channels bi-directional Baseband Serial Interface (BSI) with 3-wire or 4-wire control
10-Pin Baseband Parallel Interface (BPI) with programmable driving strength
Multi-band support
Voice and Modem CODEC
Dial tone generation
Voice Memo

-20-
Noise Reduction
Echo Suppression / Echo Cancellation
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)
FR error concealment
GSM channel coding, equalization and A5/1, A5/2 and A5/3 ciphering
GPRS GEA1, GEA2 and GEA3 ciphering
Programmable GSM/GPRS Modem
Packet Switched Data with CS1/CS2/CS3/CS4 coding schemes
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/NAND Flash Interface
18-bit Parallel Interface supports 8/16 bit NAND flash and 8/9/16/18 bit Parallel LCD
8/16 bit NAND Flash Controller with 1-bit ECC correction for mass storages
2 Chip selects available for high-density NAND flash device
Serial LCD Interface with 8/9 bit format support
LCD Controller
Hardware accelerated display
Supports simultaneous connection to up to 2 parallel LCD and 1 serial LCD modules
Supports format: RGB332, RGB444, RGB565, RGB666, RGB888
Supports LCD panel maximum resolution up to 800x600 at 16bpp
Supports hardware display rotation
Capable of combining display memories with up to 4 blending layers
Accelerated Gamma correction with programmable gamma table.
Image Signal Processor
8 bit YUV format image input
Capable of processing image of size up to VGA
Flexible I/O voltage of 1.8V ~ 2.8V
Audio CODEC
Wavetable synthesis with up to 64 tones
Advanced stereo wavetable synthesizer
Wavetable including GM full set of 128 instruments and 47 sets of percussions
PCM Playback and Record
Digital Audio Playback
HE-AAC decode support
Audio Interface and Audio Front End
Supports I2S interface