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Table Of Contents
1. INTRODUCTION ................................................. 5
1.1 Purpose ............................................................................................... 5
1.2 Regulatory Information ............................................................... 5
1.3 Abbreviations ................................................................................... 7
2. PERFORMANCE ..................................................9
2.1 H/W Features .................................................................................... 9
2.2 Technical Specification ...............................................................11
3. TECHNICAL BRIEF ............................................17
3.1 GS290 Functional Block diagram ...........................................17
3.2 Baseband Processor (BBP) Introduction..............................18
3.3 Power management IC ..............................................................30
3.4. Power ON/OFF ..............................................................................35
3.5. SIM & uSD interface ....................................................................37
3.6. Memory ...........................................................................................39
3.7. LCD Display ....................................................................................40
3.8. Keypad Switching & Scanning ...............................................41
3.9. Keypad back-light illumination .............................................42
3.10. LCD back-light illumination ..................................................43
3.11. Audio ..............................................................................................44
4.5 Camera Trouble .............................................................................70
4.6 Receiver & Speaker trouble ......................................................72
4.7 Microphone trouble ....................................................................75
4.8 Vibrator trouble .............................................................................77
4.9 Keypad back light trouble .........................................................79
4.10 SIM & uSD trouble ......................................................................81
4.11 Touch trouble...............................................................................85
4.12 Trouble shooting of Receiver part .......................................87
4.13 Trouble shooting of Transmitter part. ................................93
5. DOWNLOAD & S/W UPGRADE......................101
6. BLOCK DIAGRAM ...........................................112
7. CIRCUIT DIAGRAM ........................................113
8. BGA Pin Map ..................................................121
9. PCB LAYOUT ...................................................129
10.ENGINEERING MODE ...................................135
10.1. Test Equipment Setup .......................................................... 135
10.2. Calibration Step ...................................................................... 135
3.13. charging circuit ..........................................................................46
3.14 FM radio & BLUETOOTH ..........................................................47
3.15. 5pin u-USB Interface connector..........................................51
3.16. General Description .................................................................54
3.17. Receiver part ...............................................................................56
3.18. Transmitter part .........................................................................57
3.19. RF synthesizer .............................................................................58
3.20. Front End Module control .....................................................59
3.21. Power Amplifier Module ........................................................60
3.22. PAM Schematic ..........................................................................61
4. TROUBLE SHOOTING ......................................62
4.1 Trouble shooting test setup .....................................................62
4.2 Power on Trouble ..........................................................................63
4.3 Charging trouble ..........................................................................66
4.4 LCD display trouble .....................................................................68
11. STAND ALONE TEST ....................................140
11.1 Test Program Setting ............................................................. 140
11.2 Tx Test ........................................................................................... 143
11.4 Rx Test ..........................................................................................145
12. EXPLODED VIEW & REPLACEMENT
PART LIST ....................................................147
12.1 EXPLODED VIEW ......................................................................147
12.2 Replacement Parts..................................................................149
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1. INTRODUCTION
GS290 Operational Description Revision B
1. Introduction
1.1. Purpose
This manual provides the information necessary to repair, calibration, description and download the features of
the GS290.
1.2. Regulatory Information
1.2.1. 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 you’re 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. LGE does not warrant that this product is immune from the above case but will
prevent unauthorized use of common-carrier telecommunication service of facilities accessed through or
connected to it. LGE will not be responsible for any charges that result from such unauthorized use.
1.2.2. 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.
1.2.3. 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
GS290 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.
1.2.4. Maintenance Limitations
Maintenance limitations on the GS290 must be performed only at the LGE or its authorized agents.
The user may not make any changes and/or repairs expect as specifically noted in this manual.
Therefore, note that unauthorized alternations or repair may affect the regulatory status of the
system and may void any remaining warranty.
1. INTRODUCTION
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1. INTRODUCTION
GS290 Operational Description Revision B
1.2.5. Notice of Radiated Emissions
The GS290 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.
1.2.6. Pictures
The pictures in this manual are for illustrative purposes only; your actual hardware may look slightly
different.
1.2.7. Interference and Attenuation
An GS290 may interfere with sensitive laboratory equipment, medical equipment, etc. Interference
from unsuppressed engines or electric motors may cause problems.
1.2.8. Electrostatic Sensitive Devices
ATTENTION
Boards, which contains Electrostatic Sensitive Device(ESD), are indicated by the sign. Following
information is ESD handling: 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 such as EEPROM to the factory,
use the protective package as described.
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1. INTRODUCTION
GS290 Operational Description Revision B
1.3. ABBREVIATION
For the purposes of this manual, following abbreviations apply:
APC Automatic Power Control
BB Baseband
BER Bit Error Ratio
CC-CV Constant Current – Constant Voltage
CLA Cigar Lighter Adapter
DAC Digital to Analog Converter
DCS Digital Communication System
dBm dB relative to 1 milli-watt
DSP Digital Signal Processing
EEPROM Electrical Erasable Programmable Read-Only Memory
EGPRS Enhanced General Packet Radio Service
EL Electroluminescence
ESD Electrostatic Discharge
FPCB Flexible Printed Circuit Board
GMSK Gaussian Minimum Shift Keying
GPIB General Purpose Interface Bus
GPRS General Packet Radio Service
GSM Global System for Mobile Communications
IPUI International Portable User Identity
IF Intermediate Frequency
LCD Liquid Crystal Display
LDO Low Drop Output
LED Light Emitting Diode
LGE LG Electronics
OPLL Offset Phase Locked Loop
PAM Power Amplifier Module
PCB Printed Circuit Board
PGA Programmable Gain Amplifier
PLL Phase Locked Loop
PSTN Public Switched Telephone Network
RF Radio Frequency
RLR Receiving Loudness Rating
RMS Root Mean Square
RTC
Real Time Clock
SAW Surface Acoustic Wave
GS290 Operational Description Revision B
SIM Subscriber Identity Module
SLR Sending Loudness Rating
SRAM Static Random Access Memory
STMR Side Tone Masking Rating
TA Travel Adapter
TDD Time Division Duplex
TDMA Time Division Multiple Access
UART Universal Asynchronous Receiver/Transmitter
VCO Voltage Controlled Oscillator
DCXO Digitally Controled Crystal Oscillator
WAP Wireless Application Protocol
ଝ 8PSK 8 Phase Shift Keying
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2. PERFORMANCE
GS290 Operational Description Revision B
2. General Performance
2.1 H/W Feature
Item Feature Comment
Standard Battery Li-ion, 900mAh
AVG TCVR Current 250mA typ @PL5
Standby Current 2.3 mA typ @PP9
Talk time 3 hours (GSM TX Level 7)
Standby time Over 250 hours (Paging Period:9, RSSI: -85dBm)
Charging time Under 3 hours
RX Sensitivity
EGSM/GSM850:-105dBm˨ ,DCS/PCS:-105dBm˨
TX output power
EGSM/GSM850 : 33dBm (@PL 5)
DCS/PCS: 30dBm (@PL 0)
GPRS compatibility Class 10
SIM card type 3V Small
Display
Main 240 u 400 pixels, 3” WQVGA, 262K color
Status Indicator
Send Key, Shortcut Key, Volume Up/Down Key,
PWR Key, Camera Key, Lock Key
ANT Built in antenna
EAR Phone Jack 3.5Pi Headset jack
PC Synchronization Yes
Speech coding HR/EFR/FR/AMR
Data and Fax Yes
Vibrator Yes
Buzzer No
Voice Recoding Yes
C-Mic Yes
Receiver Yes
Travel Adapter Yes
Options Bluetooth hands-free kit, Data Kit
2. PERFORMANCE
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2. PERFORMANCE
GS290 Operational Description Revision B
2.2 Technical specification
Item Description Specification
1
Frequency Band
GSM850
TX: 824 + 0.2 x n MHz
RX: 869 + 0.2 x n MHz ( n = 1 ~ 124 )
EGSM
TX: 890 + 0.2 x (n-1024) MHz
RX: 935 + 0.2 x (n-1024) MHz ( n = 975 ~ 1023 )
DCS1800
TX: 1710 + ( n-511 ) u 0.2 MHz (n = 512 a 885)
RX: TX + 95 MHz
PCS1900
2
Phase Error
RMS < 5 degrees
Peak < 20 degrees
3
Frequency Error < 0.1ppm
GSM850/EGSM
Level Power Toler. Level Power Toler.
5 33 dBm ±2dB 13 17 dBm ±3dB
6 31 dBm ±3dB 14 15 dBm ±3dB
7 29 dBm ±3dB 15 13 dBm ±3dB
8 27 dBm ±3dB 16 11 dBm ±5dB
9 25 dBm ±3dB 17 9 dBm ±5dB
10 23 dBm ±3dB 18 7 dBm ±5dB
11 21 dBm ±3dB 19 5 dBm ±5dB
12 19 dBm ±3dB
DCS1800/PCS1900
Level Power Toler. Level Power Toler.
0 30 dBm ±2dB 8 14 dBm ±3dB
1 28 dBm ±3dB 9 12 dBm ±4dB
2 26 dBm ±3dB 10 10 dBm ±4dB
3 24 dBm ±3dB 11 8 dBm ±4dB
4 22 dBm ±3dB 12 6 dBm ±4dB
5 20 dBm ±3dB 13 4 dBm ±4dB
6 18 dBm ±3dB 14 2 dBm ±5dB
4
Power Level
7 16 dBm ±3dB 15 0 dBm ±5dB
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2. PERFORMANCE
7 Spurious Emissions
Conduction, Emission Status
Conduction, Emission Status
8
Bit Error Ratio
GSM850 / EGSM
BER (Class II) < 2.439% @-102dBm
DCS1800/PCS1900
BER (Class II) < 2.439% @-100dBm
9
Rx Level Report
accuracy
r 3 dB
10 SLR
8 r 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 /
200 0 /
300 0 -12
1,000 0 -6
2,000 4 -6
3,000 4 -6
3,400 4 -9
11
Sending Response
4,000 0 /
12 RLR
2 r 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 /
200 0 /
300 2 -7
500 * -5
1,000 0 -5
3,000 2 -5
3,400 2 -10
4,000 2
13 Receiving Response
* Mean that Adopt a straight line in between 300 Hz and 1,000 Hz to be
Max. level in the range.
14 STMR
13 r 5 dB
15 Stability Margin > 6 dB
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dB to ARL (dB) Level Ratio (dB)
-35 17.5
-30 22.5
-20 30.7
-10 33.3
0 33.7
7 31.7
16
Distortion
10 25.5
17
Side tone Distortion Three stage distortion < 10%
18
<Change> System
frequency (26 MHz)
tolerance
d 2.5 ppm
19
<Change>32.768KHz
tolerance
d 30ppm
20
Power consumption
Standby
- Normalஆd 3 mA(@PP9)
21
Talk Time
EGSM/Lvl 7 (Battery Capacity 800mA):180 min
EGSM/Lvl12(Battery Capacity 800 mA):320min
22
Standby Time
Under conditions, at least 300 hours:
1. Brand new and full 900mAh battery
2. Full charge, no receive/send and keep GSM in idle mode.
3. Broadcast set off.
4. Signal strength display set at 3 level above.
5. Backlight of phone set off.
23
Ringer Volume
At least 65 dB under below conditions:
1. Ringer set as ringer.
2. Test distance set as 50 cm
24
Charge Current
Fast Charge : < 650 mA
Slow Charge: < 120 mA
2. PERFORMANCE
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2. PERFORMANCE
GS290 Operational Description Revision B
* EDGE RF Specification (Option: is not serviced for ”EDGE mode”)
Item Description Specification
1 RMS EVM ≤9%
2 Peak EVM ≤30%
3 95th Percentile EVM ≤15%
4 Origin Offset Suppression ≥30dB
GSM900/EGSM
Level Power Toler. Level Power Toler.
5 27dBm ±3dB 13 17dBm ±3dB
6 27dBm ±3dB 14 15dBm ±3dB
7 27dBm ±3dB 15 13dBm ±3dB
8 27dBm ±3dB 16 11dBm ±5dB
9 25dBm ±3dB 17 9dBm ±5dB
10 23dBm ±3dB 18 7dBm ±5dB
11 21dBm ±3dB 19 5dBm ±5dB
12 19dBm ±3dB
DCS1800, PCS1900
Level Power Toler. Level Power Toler.
0 26/25dBm ±3dB 8 14dBm ±3dB
1 26/25dBm ±3dB 9 12dBm ±4dB
2 26/25dBm ±3dB 10 10dBm ±4dB
3 24dBm ±3dB 11 8dBm ±4dB
4 22dBm ±3dB 12 6dBm ±4dB
5 20dBm ±3dB 13 4dBm ±4dB
6 18dBm ±3dB 14 2dBm ±5dB
5 Power Level
7 16dBm ±3dB 15 0dBm ±5dB
GSM900/EGSM
Offset from carrier(kHz) Max. dBc
100 +0.5
200 -30
250 -33
400 -54
600~<1,200 -60
1,200~<1,800 -60
1,800~<3,000 -63
3,000~<6,000 -65
6
Output RF Spectrum
(due to modulation)
6,000 -71
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2. PERFORMANCE
GS290 Operational Description Revision B
DCS1800, PCS1900
Offset from carrier(kHz) Max. dBc
100 +0.5
200 -30
250 -33
400 -54
600~<1,200 -60
1,200~<1,800 -60
1,800~<3,000 -63
3,000~<6,000 -65
6,000 -71
GSM900/EGSM
Offset from carrier(kHz) Max. dBm
400 -23
600 -26
1,200 -27
1,800 -30
DCS1800, PCS1900
Offset from carrier(kHz) Max. dBm
400 -23
600 -26
1,200 -27
7
Output RF Spectrum
(due to switching transient)
1,800 -30
6
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
3.2. Baseband Processor (BBP) Introduction
S-GOLD3 Baseband IC
PMB 8877
S-GOLD3 Overview
TM
is a GSM/EDGE single chip mixed signal baseband IC containing all analog and digital functionality
TM
provides multimedia extensions to enable today’s and future feature
TM
supports multislot operation modes
TM
is handled by an ARM926EJ-S CPU and a TEAKLite® DSP core.
TM
Quad-Band E-GPRS Solution
SMARTiPM
PMB 6272
(EDG E GSM/GPR S RF Tran sceiver)
TEAKL ite®
GEA-1/2/3
SRA M
USB FS
OTG
DMA C
GPIO s
USIM
GPTU
RTC
Equali zer
Acc.
I²S / DAI
GSM
Timer
Keyp ad
AFC
CAPCO M
IC U
SPCU
AUX
ADC
SRC
MEM
CTRL
SDIO I F
I²C
CGU
Display
IF
Camera
IF
FCDP
Multi media I C IF
ARM® 926 EJ-S
MOVE CoPro
Fast
IrDA
USIFs
Cryp to
box
TSMU
I²S
Sys
Timer
1 Wire
Engi ne
2D
MMC IF
Channel
Deco der
BB Receiver
Modu lator
8 PSK/GMSK
JTAG
Cerb erusABW
S-GOLD3
PMB 8877
IR-Memory
DAC
ADC
Audio FE
DAC
DSP
Timer
DSP
ICU
DSP
ICU
ADC
I/Q
DA C
Ph/
Am p
SD
PLL
IF
AD C
3 WIRE
IF
RF
Control IF
GSM
Cipher Unit
3-wire- bus
Analog
Audio In
Analog
Audio Out
SDs
SM-Power3
PMB 6821
USB
AU DIO
AMPL IFIER
BA CK LIGHT
I²C
DI GITA L
CO NTR OL
CH AR GER
DI G. R ESET
& SLEEP
CO NTR OL
VRF sVAU DIO s
VMMCVUSB
VSIMVRT C
VVIBVAU X
VAF C
SU
VIOVPLL
REF ERENC E
PA
FEM
DC XO
Core supply (0.95 V,1 .37V)
Analog Supply(2.5V)
VRTC, VPLL, IO Supply
1.8V, 2.5V
LD Os
FLA SH
LIG HT
SDR or D DR
SD-R AM
/ C -RA M
NO R / NAN D
FLA SH
1 32
4 65
7 98
* #0
SIM
MMC
GS290 Operational Description Revision B
3.2. Baseband Processor (BBP) Introduction
Figure 2 Top level block diagram of the S-GOLD3TM (PMB8877)
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
3.2.1. General Description
S-GOLD3TM is a GSM/EDGE single chip mixed signal Baseband IC containing all analog and digital functionality
of a cellular radio. Additionally S-GOLD3TM Provides multimedia extensions such as camera, software MIDI, MP3
sound. It is designed as a single chip solution, integrating the digital and mixed signal portions of the base
band in 0.09um, 1.2V technology.
The chip will fully support the FR, EFR, HR and AMR-NB vocoding.
S-GOLD3
TM
support multi-slot operation modes HSCSD (up to class 10), GPRS for high speed data application
(up to class 12) and EGPRS (up to class 12) without additional external hardware.
3.2.2. Block Description
z Processing core
ARM926EJ-S 32 bit processor core for controller functions. The ARM926EJ-S includes an MMU, and the Jazelle
Java extension for Java acceleration.
- TEAKLite DSP core
z ARM-Memory
- 32k Byte Boot ROM on the AHB
- 96k Byte SRAM on the AHB, flexibly usable as program or data RAM
- 16k Byte Cache for Program (internal)
- 8k Byte tightly coupled memory for Program(internal)
- 8k Byte Cache for Data(internal)
- 8k Byte tightly coupled memory for Data(internal)
z DSP-Memory
- 104K x 16bit Program ROM
- 8k x 16bit Program RAM
- 60k x 16bit Data ROM
- 37k x 16bit Data RAM
- Incremental Redundancy(IR) Memory of 35904 words of 16bit
z Shared Memory Block
1.5K x 32bit Shared RAM(dual ported) between controller system and TEAKLite.
z Controller Bus system
The processor cores and their peripherals are connected by powerful buses.
Multi-layer AHB for connecting the ARM and the other master capable building blocks with the internal and
external memories and with the peripheral buses.
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
z Clock system
The clock system allows widely independent selection of frequencies for the essential parts of the S-GOLD3.
Thus power consumption and performance can be optimized for each application.
z Functional Hardware block
- CPU and DSP Timers
- MOVE coprocessor performing motion estimation for video encoding algorithms
(H.263, MPEG-4)
- Programmable PLL with additional phase shifters for system clock generation
- GSM Timer Module that off-loads the CPU from radio channel timing
- GMSK / 8-PSK Modulator according to GSM-standard 05.04 (5/2000)
- GMSK Modulator: gauss-filter with B*T=0.3
- EDGE Modulator: 8PSK-modulation with linearized GMSK-Pulse-Filter
- Hardware accelerators for equalizer and channel decoding.
- Incremental Redundancy memory for EDGE class 12 support
- A5/1, A5/2, A5/3 Cipher unit
- GEA1, GEA2, GEA3 Cipher Unit to support GPRS data transmission
- Advanced static and dynamic power management features including TDMA-Frame
synchronous low power mode and enhanced CPU modes(idle and sleep modes)
- Pulse Number Modulation output for Automatic Frequency Correction(AFC)
- Serial RF Control interface: support of direct conversion RF
- A Universal Serial Interface(USIF) enabling asynchronous (UART) of synchronous (SPI)
serial data transmission
- 3 USIF with autobaud detection, hardware flow control and integrated
- A dedicated Fas IfDA Controller supporting IrDA’s SIR,MIR and FIR standards
(up to 4Mbps)
- I2C-bus interface (e.g. connection to S/M power)
- A fast display interface supporting serial and parallel interconnection
- An ITU-R BT.656 compatible Camera interface.
- Programmable clock output for a camera
- An multimedia/Secure Digital Card Interface (MMCI/SD:SDIO capable)
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
3.2.3. External Devices connected to memory interface
Table 1. Memory interface
Device Name Maker Remark
FLASH K522H1HACB-B060 SAMSUNG Synchronous / A synchronous
DDR K522H1HACB-B060 SAMSUNG Synchronous 166MHz
LCD IM300IBN1A LGIT 8bit access 2 times transmission
Melody IC Not Used S/W Infineon Software CODEC
3.2.4. RF Interface (T_OUT)
S-Gold3 uses this interface to control RF IC and Peripherals. 13 signals are provided switch on/off RF ICs
Periodically each TDMA frame.
Table 2. RF Interface Spec.
T_OUT
Resource Interconnection Description
T_OUT0 TXON_PA PAM Power on
T_OUT1 N/A N/A
T_OUT2 PA_BAND TX RF band select
T_OUT3 N/A N/A
T_OUT4 N/A N/A
T_OUT5 Other function -
T_OUT6 PA MODE PAM Mode select
3.2.5. USIF Interface
GS290 have three USIF Drivers as follow :
- USIF1 : Hardware Flow Control / SW upgrade / Calibration
- USIF2 : Not used Rx, Tx and CTS, RTS use BT Interface
- USIF3 : BT Interface
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
Table 3. USIF Interface Spec.
3.2.6. ADC channel
BBP ADC block is composed of 10 external ADC channel. This block operates charging process and other
related process by reading battery voltage and other analog values.
Table 4. S-Gold3 ADC channel usage
ADC channel
Resource Interconnection Description
M0 BAT_ID Battery temperature measure
M1 RF_TEMP RF block temperature measure
M2 N.C
M3 N.C
M4 N.C
M5 N.C
M6 N.C
M7 N.C
M8 VSUPPLY Battery supply voltage measure
M9 N.C
M10 N.C
Resource Name Remark
USIF1
USIF1_TXD TXD Transmit Data
USIF1_RXD RXD Receive Data
USIF1_CTS USB_DP
USIF1_RTS USB_DM
USIF2
USIF2_TXD NC NC
USIF2_RXD Other function USIF2_CTS BT_CTS
USIF2_RTS BT_RTS.
USIF3
USIF3_TXD BT_TX BT Transmit tx
USIF3_RXD BT_RX BT Receive rx
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
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Only for training and service purposes
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
3.2.7. GPIO map
Over a hundred allowable resources, GS290 is using as follows except dedicated to SIM and Memory. GS290
GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in below
table
GS290 Operational Description Revision B
3.2.7. GPIO map
Over a hundred allowable resources, GS290 is using as follows except dedicated to SIM and Memory. GS290
GPIO(General Purpose Input/Output) Map, describing application, I/O state, and enable level, is shown in below
table
Table 5 S-Gold3 GPIO pin Map
Port Function Net Name Description
KEY MATRIX
KP_IN0
KP_IN1
KP_IN2
KP_IN3
KP_IN(3)
KP_IN4
KP_IN5
KP_IN(5)
KP_IN6
KP_IN(6)
KP_OUT0
BT_HOST_WAKEUP
KP_OUT1
KP_OUT(0)
KP_OUT2
KP_OUT(2)
KP_OUT3
KP_OUT(3)
USIF1
USIF1_RXD
UART_RX UART, RS232 Data
USIF1_TXD
UART_TX UART, RS232 Data
USIF1_RTS_N
USB_DAT_VP USB Data
USIF1_CTS_N
USB_SE0_VM USB Data
USIF2
USIF2 _RXD
USW_INT MUIC Interrupt Singnal
USIF2 _TXD
NA Not used
USIF2_RTS_N
UART_BT_RTS Bluetooth RTS
USIF2_CTS_N
UART_BT_CTS Bluetooth CTS
USIF3
USIF3 _RXD
UART_BT_RX Bluetooth RX
USIF3 _TXD
UART_BT_TX Bluetooth TX
CLK
CLK32K
CLK32k For FM Radio, BT CLK32K
GPIO_22
Not used
CAMERA I/F
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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LGE Internal Use Only
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
CIF_D0
CIF_D(0) Camera DATA[0]
CIF_D1
CIF_D(1) Camera DATA[1]
CIF_D2
CIF_D(2) Camera DATA[2]
CIF_D3
CIF_D(3) Camera DATA[3]
CIF_D4
CIF_D(4) Camera DATA[4]
CIF_D5
CIF_D(5) Camera DATA[5]
CIF_D6
CIF_D(6) Camera DATA[6]
CIF_D7
CIF_D(7) Camera DATA[7]
CIF_PCLK
CIF_PCLK Camera pixel clock
CIF_HSYNC
CIF_HS Camera H sync
CIF_VSYNC
CIF_VS Camera V sync
CLKOUT
CIF_MCLK Camera main clock
CIF_PD
CIF_PD Camera power down(active high)
CIF_RESET
CIF_RESET Camera reset
LCD I/F
DIF_D0
DIF_D(0) LCD data[0]
DIF_D1
DIF_D(1) LCD data[1]
DIF_D2
DIF_D(2) LCD data[2]
DIF_D3
DIF_D(3) LCD data[3]
DIF_D4
DIF_D(4) LCD data[4]
DIF_D5
DIF_D(5) LCD data[5]
DIF_D6
DIF_D(6) LCD data[6]
DIF_D7
DIF_D(7) LCD data[7]
DIF_D8
DIF_D(8) LCD data[8]
DIF_CS1
DIF_MAIN_CS MAIN LCD chip select
DIF_CS2
IF_MODE LCD Interface mode
DIF_CD
DIF_CD Command Data switch
DIF_WR
DIF_WR LCD Write
EINT7
HOOK_DETECT Ear-Mic hook detection
DIF_RESET1
_DIF_RESET LCD Reset
GPIO_108
VIB_EN Vibrator enable
I2C
I2C_SCL
I2C_SCL For PMIC/Amp/Touch/MUIC
I2C_SDA
I2C_SDA For PMIC/Amp/Touch/MUIC
PM_INT (EINT)
PM_INT
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
- 24 -
Only for training and service purposes
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
EPPA2
BBP_SND_R For Speaker
MICN1
MIC1_N For Mic
MICP1
MIC1_P For Mic
MICN2
MIC2_N For Headset Mic
MICP2
MIC2_P For Headset Mic
VMICP
VMICP Power for MIC
VMICN
VMICN Power for MIC
ADC
M0
BAT_ID Battery temperature measure
M1
RF_TEMP RF block temperature measure
M2
M3
M7
M8
VSUPPLY Battery supply voltage measure
M9
M10
Reference
VREF
IREF
JTAG I/F
TDO
TDO JTAG
TDI
TDI JTAG
TMS
TMS JTAG
TCK
TCK JTAG
TRST_n
_TRST JTAG
RTCK
RTCK JTAG
ETM I/F
TRIG_IN
TRIG_IN ETM (Embedded Trace Macro Cell)
MON1
MON1 ETM
MON2
MON2 ETM
TRACESYNC
TRACESYNC ETM
TRACECLK
TRACECLK ETM
PIPESTAT[2]
PIPESTAT2 ETM
PIPESTAT[1]
PIPESTAT1 ETM
PIPESTAT[0]
PIPESTAT0 ETM
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
- 26 -
Only for training and service purposes
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
3.3. Power management IC
3.3.1. General Description
SM-POWER is a highly integrated Power and Battery Management IC for mobile handsets. It has been specially
designed for usage with S-Gold3. Although optimized for usage with the Infineon S-GOLD baseband device it
is suitable for the S-GOLDlite and the E-GOLD+ baseband devices as well. It also supports the cellular RF
devices like SMARTi-DC, SMARTi-DC+, SMARTi-SD and the Bluemoon Single, Infineon’s single chip solution for
Bluetooth. If used with S-GOLD3 it provides all power supply functions (except for the RF PA) for a complete
advanced GSM Edge smart phone minimizing external device count.
Block Description
• Highly efficient step-down converter for main digital baseband supply including Core, DSP and
memory interface (External Bus Unit).
• Support of S-GOLD standby power-down concept
• Low-drop-out (LDO) regulators for Flash and mobile RAM memory devices
• Voltage independent switching of two SIM cards
• LDO regulators for baseband I/O supply
• LDO regulator for analog mixed-signal section of S-GOLD
• Low-noise LDO regulators for RF devices
• Supply for Bluemoon Single, Infineon’s single chip solution for Bluetooth
• Audio amplifier 8 Ohms for handsfree operation and ringing
• Charge Control for charging Li-Ion/Polymer batteries under software control
• Pre-charge current generator with selectable current level
• RTC regulator with ultra-low quiescent current
• USB interface support for peripheral and mini-host mode
• Backlight LEDs driver with current selection and PWM dimming function
• Two single LED driver outputs for signaling
• Vibrator driver with adjustable voltage
• Fully controlable by software via I2C – Bus
• Temperature and battery voltage sensors
• Interrupt channels for peripherals
• System debug mode
• VQFN 48 package with heat sink and non-protruding leads
• Compatible with the Infineon E-GOLD+ V2 and V3
LGE Internal Use Only Copyright © 2010 LG Electronics. Inc. All right reserved.
- 30 -
Only for training and service purposes
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3. TECHNICAL BRIEF
GS290 Operational Description Revision B
SM-POWER is a further step on the successful E-Power product line with enhanced and optimized functionality.
SM-POWER features a baseband supply concept with a DC/DC step-down converter cascaded by two linear
regulators
–SM-POWER’s DC/DC converter makes up to 40 % reduction of battery current for smart phone functions (e.g.
organizer functions, games, MP3 decoding) possible.
– SDBB has high efficiency up to 95% and also a power save mode.
– Memory Interface is directly supported by the SDBB
– SDBB can also act as main supply voltage for E-GOLD+ or S-GOLDlite baseband devices.
– For S-GOLD two linear regulators for DSP and Core are cascaded after the SDBB.
SM-POWER supports the standby power-down concept of S-GOLD by temporarily switching off the linear
regulator for the DSP during mobile standby whenever this subsystem is not used. In this phase the ARM
controller and most peripherals including parts of the on-chip SRAM are kept powered-up with power being
supplied by the other linear regulator.
SM-POWER includes a fully differential audio amplifier able to drive loads down to a nominal value of 8 Ohm for
usage in hands-free phones and for ringing
– 450 mW maximum output power
– adjustable gain
– mute switch SM-POWER also integrates a charging function for Li-Ion, Li-Polymer batteries
– click and pop -protection SM-POWER also integrates a charging function for Li-Ion, Li-Polymer batteries
– Precharge current source with two current levels
– Constant current / constant voltage charging with 3 different termination voltages
– Programable charge current limitation for use with different batteries
– Freely programable pulse charging to reduce the thermal power dissipation in the constant voltage
charging phase
– Top-off charge current sensing SM-POWER completes the USB interface of S-GOLD
– Regulated voltage for S-GOLD USB interface including reverse current and overvoltage protection
– Switch to supply USB pull-up resistor
– Mini-host pull down resistor functionality
– Charge pump with internal switching capacitor for USB host VBUS supply voltage SM-POWER fully supports
LED and Vibra Motor functionality
– no external components needed
– driver for backlight LEDs adjustable in steps up to 140mA and with soft turn on and off by PWM dimming
– two driver outputs for single LEDs for precharge indication and signaling with i.e. change of colour
Copyright © 2010 LG Electronics. Inc. All right reserved.
Only for training and service purposes
- 31 -
LGE Internal Use Only