LG GW520 User manual

Service Manual Model : GW520
Internal Use Only
Service Manual
GW520
Date: July, 2009 / Issue 1.1

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
Table Of Contents
1. INTRODUCTION...............................................5
1.1 Purpose......................................................................5
1.2 Regulatory Information.................................................5
1.3. ABBREVIATION ...........................................................7
2. PERFORMANCE............................................... 9
2.1 Supporting Standard....................................................9
2.2 Main Parts : Solution..................................................10
2.3 H/W features.............................................................10
2.4 HW Spec. ................................................................12
3. BB CIRCUIT TECHNICAL BRIEF..................... 17
3.1 Functional Block Diagram ..........................................17
3.2 Baseband Processor Introduction ...............................18
3.3 Power management IC...............................................31
3.4. Power ON/OFF .........................................................39
3.5 SIM Interface.............................................................40
3.6 MICRO SD connector.................................................41
3.7 Memory ....................................................................42
3.8 LCD Display ..............................................................43
3.9 Keypad switching & scanning.....................................44
3.10 keypad back-light illumination ..................................45
3.11 LCD back-light illumination ......................................47
3.12 Battery voltage monitor............................................48
3.13 Audio......................................................................49
3.14 Bluetooth/FM (RBCA-B561A)....................................51
3.15 5PIN Interface connector..........................................53
4. RF Circuit Technical Brief ............................54
4.1 General Description ...................................................54
4.2 GSM Part..................................................................58
4.3 WCDMA Part.............................................................62
4.4 GSM Power Amplifier Module.....................................65
4.5 WCDMA Band1/8 Power Amplifier Module ..................66
4.6 WCDMA Band1/8 Low Noise Amplifier ........................67
4.7 WCDMA Band1 Duplexer ...........................................68
4.8 WCDMA Band8 Duplexer ...........................................68
5. Trouble shooting ..........................................69
5.1 Trouble shooting test setup ........................................69
5.2. Power on trouble ......................................................70
5.3 Charging Trouble .......................................................73
5.4 USB Trouble ..............................................................75
5.5 SIM Detect Trouble ....................................................78
5.6 Qwerty Key Sense Trouble..........................................81
5.7 Slide Key sense Trouble .............................................83
5.8 Keypad backlight Trouble ...........................................84
5.9 Micro SD Trouble .......................................................86
5.10 Audio Trouble ..........................................................88
5.11 Microphone Trouble .................................................92
5.12 Camera Trouble.......................................................94
5.13 Main LCD Trouble ....................................................96
5.14 Bluetooth Trouble.....................................................98
5.15 RF Component ......................................................101
5.16 GSM PATH ............................................................103
5.17 Trouble Shooting of GSM Part.................................103
5.18 Trouble Shooting of WCDMA Part............................112
6. Download & S/W upgrade .........................118
7. BLOCK DIAGRAM........................................148
8. CIRCUIT DIAGRAM...................................... 149
9. BGA Pin Map ..............................................157
10. PCB LAYOUT .............................................161
11. RF Calibration .......................................... 167
11.1. Test Equipment Setup ...........................................167
11.2. Calibration Step....................................................167
12. EXPLODED VIEW & REPLACEMENT
PART LIST ................................................173
12.1 EXPLODED VIEW ...................................................173
12.2 Replacement Parts ................................................175
12.3 Accessory .............................................................201

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. INTRODUCTION
1. INTRODUCTION
1.1.Purpose
This manual provides the information necessary to repair, calibration, description and download the
features of the GW520.
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 might 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.
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 GW520 or compatibility with the net
work, 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 the GW520 must be performed only by the LGE or its authorized agent.
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.

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
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1. INTRODUCTION
GW520 service manual
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 slightly
different.
G. Interference and Attenuation
GW520 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 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 like EEPROM to the factory, use the protective package as
described.

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
1. INTRODUCTION
1. INTRODUCTION
GW520 service manual
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

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
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1. INTRODUCTION
GW520 service manual
◆
PSTN Public Switched Telephone Network
◆
RF Radio Frequency
◆
RLR Receiving Loudness Rating
◆
RMS Root Mean Square
◆
RTC Real Time Clock
◆
SAW Surface Acoustic Wave
◆
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
VCTCXO
◆
Voltage Control Temperature Compensated Crystal
Oscillator
◆
WAP Wireless Application Protocol
◆8PSK 8 Phase Shift Keying

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
2. PERFORMANCE
2. PERFORMANCE
GW520 service manual
2.1 Supporting Standard
2.2 Main Parts : Solution
Item Part name Comment
Baseband Chip PMB8878 (Infineon)
PMIC PMB6821 (Infineon)
RF chip PMB6952 (Infineon)
Item Feature Comment
Supporting Standard WCDMA 900 / WCDMA 2100
GSM850/EGSM/DCS/PCS with
seamless handover
Phase 2+(include AMR)
SIM Toolkit : Class 1, 2, 3, A-E
Frequency Range GSM850 TX : 824 - 849MHz
GSM850 RX : 869 - 894MHz
EGSM TX : 880 - 915 MHz
EGSM RX : 925 - 960 MHz
DCS TX : 1710 - 1785 MHz
DCS RX : 1805 - 1880 MHz
PCS TX : 1850 - 1910 MHz
PCS RX : 1930 - 1990 MHz
WCDMA900 TX : 880 - 915 MHz
WCDMA900 RX : 925 - 960 MHz
WCDMA2100 TX : 1920 - 1980 MHz
WCDMA2100 RX : 2110 - 2170 MHz
Application Standard WAP 2.0, JAVA 2.0

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2. PERFORMANCE
2.3 H/W features
Item Feature Comment
Form Factor Color LCD – Slide
1)Capacity : Li-Polymer, 950mAh
Battery 2) Packaging Type : Standard
Item Feature Comment
Size 104.5 x 54 x 16.75 mm
Weight 130 g With Battery
GSM > 250 hours @paging period 5Stand-by
time WCDMA > 250hours @DRX=7
GSM >160mins @ Tx level 5
WCDMA >160mins @Tx=12dBm
Talk time
Charging
time
3 hours @power OFF/950mAh
Rx sensitivity GSM850 : < -105dBm
EGSM900 : < -105 dBm
DCS1800 : < -105 dBm
PCS1900 : < -105 dBm
WCDMA 900/2100 : < -106.7 dBm
GSM/
GPRS
GSM850 : 32.5 dBm
EGSM900 : 32.5 dBm
DCS1800 : 29.5 dBm
PCS1900 : 29.5 dBm
Class4(GSM850)
Class4 (EGSM900)
Class1(DCS)
Class1(PCS)
TX output
power
EDGE GSM850 : 27dBm
EGSM900 : 27 dBm
DCS1800 : 26 dBm
PCS1900 : 26 dBm
E2(GSM850)
E2 (EGSM900)
E2 (DCS)
E2 (PCS)
GPRS compatibility GPRS Class 12
EDGE compatibility EDGE Class 12
Display Main LCD
(2.8”, 240 x 400 Pixels)/TFT

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
2. PERFORMANCE
GW520 service manual
Built-in Camera 5 Mega pixel
ANT Main & Sub : Internal Fixed Type
System connector 5 Pin uUSB
Ear Phone Jack 5pin uUSB Type
PC synchronization Yes
Speech coding FR, EFR, HR, AMR
Vibrator Built in Vibrator
Blue Tooth V2.1 with A2DP
Voice Recording Yes
Speaker Phone mode
Support
Yes
Travel Adapter Yes
CDROM No
Stereo Headset Yes
Data Cable No TBD
T-Flash Yes Not Equipped
3 Mega pixel

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2. PERFORMANCE
GW520 service manual
2.4 HW Spec.
GSM Transmitter/Receiver spec.
Item Specification
Frequency
GSM 850 TX : 824 - 849 MHz RX : 869 - 894 MHz
EGSM TX : 880 - 915 MHz RX : 925 - 960 MHz
DCS TX : 1710 - 1785 MHz RX : 1805 - 1880 MHz
PCS TX : 1850 - 1910 MHz RX : 1930 - 1990 MHz
Phase Error Rms : 5°
Peak : 20 °
Frequency Error GSM : 0.1 ppm
DCS/PCS : 0.1 ppm
EMC(Radiated Spurious Emission
Disturbance) GSM/DCS : < -28dBm
Transmitter Output power and
Burst Timing
GSM : 5dBm – 33dBm ± 3dB
DCS/PCS : 0dBm – 30dBm ± 3dB
Burst Timing <3.69us
Spectrum due to modulation out
to less than 1800kHz offset
200kHz : -36dBm
600kHz : -51dBm/-56dBm
Spectrum due to modulation out
to larger than 1800kHz offset to
the edge of the transmit band
GSM : 1800-3000kHz :< -63dBc(-46dBm)
3000kHz-6000kHz : <-65dBc(-46dBm)
6000kHz < : < -71dBc(-46dBm)
DCS : 1800-3000kHz :< -65dBc(-51dBm)
6000kHz < : < -73dBc(-51dBm)
Spectrum due to switching
transient
400kHz : -19dBm/-22dBm(5/0), -23dBm
600kHz : -21dBm/-24dBm(5/0), -26dBm
Reference Sensitivity – TCH/FS Class II(RBER) : -105dBm(2.439%)
Usable receiver input level range 0.012(-15 - -40dBm)
Intermodulation rejection –
Speech channels ± 800kHz, ± 1600kHz : -98dBm/-96dBm (2.439%)
AM Suppression
-GSM : -31dBm - DCS : -
29dBm
-98dBm/-96dBm (2.439%)
Timing Advance ± 0.5T

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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LGE Internal Use Only
2. PERFORMANCE
GW520 service manual
WCDMA Transmitter spec.
Item Specification
Transmit Frequency WCDMA900 : 880 MHz ~915 MHz
WCDMA2100 : 1920 ~1980 MHz
Maximum Output Power +24 dBm / 3.84 MHz, +1 / -3 dB
Frequency Error within ±0.1 PPM
Open Loop Power Control Normal Conditions : within ±9 dB,
Extreme Conditions : within ±12 dB
Minimum Transmit Power < -50 dBm /3.84 MHz
Occupied Bandwidth < 5 MHz at 3.84 Mcps (99% of power)
Adjacent Channel Leakage
Power Ratio (ACLR)
> 33 dB @ ±5 MHz,
> 43 dB @ ±10 MHz
Spurious Emissions
|f-fc| > 12.5 MHz
< -36 dBm / 1 kHz RW @ 9 kHz ≤f<150kHz
< -36 dBm / 10 kHz RW @ 150 KHz ≤f < 30 MHz
< -36 dBm / 100 kHz RW @ 30 MHz ≤f<1GHz
< -30 dBm / 1 MHz RW @ 1 GHz ≤f < 12.75 GHz
< -41 dBm / 300 kHz RW @ 1893.5 MHz < f < 1919.6 MHz
< -67 dBm / 100 kHz RW @ 925 MHz ≤f ≤935 MHz
< -79 dBm / 100 kHz RW @ 935 MHz < f ≤960 GHz
< -71 dBm / 100 kHz RW @ 1805 MHz ≤f ≤1880 MHz
Transmit Intermodulation < -31 dBc @ 5 MHz & < -41 dBc @ 10 MHz
when Interference CW Signal Level = -40 dBc
Error Vector Magnitude < 17.5 %, when Pout ≥-20 dBm
Peak Code Domain Error < -15 dB at Pout t-20 dBm

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2. PERFORMANCE
GW520 service manual
WCDMA Receiver spec.
Item Specification
Receive Frequency WCDMA900 : 925 MHz ~ 960 MHz
WCDMA2100 : 2110 ~2170 MHz
Reference Sensitivity Level BER < 0.001 when Îor = -106.7 dBm / 3.84 MHz
Maximum Input Level BER < 0.001 when Îor = -25 dBm / 3.84 MHz
A
djacent Channel Selectivity
(ACS)
ACS > 33 dB where BER < 0.001
when Îor = -92.7 dBm / 3.84 MHz &
Ioac = –52 dBm / 3.84 MHz @ ±5 MHz
Blocking Characteristic BER < 0.001 when Îor = -103.7 dBm / 3.84 MHz
& Iblocking = -56 dBm / 3.84 MHz @ Fuw(offset) = ±10 MHz
or Iblocking = -44 dBm / 3.84 MHz @ Fuw(offset) = ±15 MHz
Spurious Response BER < 0.001 when Îor = -103.7 dBm /
3.84 MHz & Iblocking = -44 dBm
Intermodulation BER < 0.001 when Îor= -103.7 dBm / 3.84 MHz
& Iouw1 = -46 dBm @ Fuw1(offset) = ±10 MHz
& Iouw2 = -46 dBm / 3.84 MHz @ Fuw2(offset) = ±20 MHz
Spurious Emissions < -57 dBm / 100 kHz BW @ 9 kHz ≤f < 1 GHz
< -47 dBm / 1 MHz BW @ 1 GHz ≤f ≤12.75 GHz
Inner Loop Power Control In
Uplink
Adjust output(TPC command)
cmd 1dB 2dB 3dB
+1 +0.5/1.5 +1/3 +1.5/4
0 -0.5/+0.5 -0.5/+0.5 -0.5/+0.5
-1 -0.5/-1.5 -1/-3 -1.5/-4
group(10equal command group)
+1 +8/+12 +16/+24

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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2. PERFORMANCE
GW520 service manual
Sub-Test
1=1/15, 2=12/15 21~25dBm / 3.84 MHz
3=13/15 4=15/8 20~25dBm / 3.84 MHz
5=15/7 6=15/0 19~25dBm / 3.84 MHz
Maximum Output
Power
3GPP Not CompleteError Vector Magnitude
Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0
> 33 dB @ ±5 MHz
> 43 dB @ ±10 MHz
Adjacent Channel
Leakage
Power Ratio (ACLR)
Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0
Spectrum Emission
Mask
HS-DPCCH
880 MHz ~ 915 MHz
1920MHz ~ 1980 MHz
Transmit Frequency
SpecificationItem
+/- 2.35End of CQI4
+/- 0.60Middle of CQI3
+/- 0.61Start of CQI2
+/- 2.36Start of Ack/Nack1
5
Transmitter
power step
tolerance
[dB]
Power
step size,
P [dB]
Power step slot boundary
Power
step
Sub-
test in
table
C.10.1.
4
1 MHz-49dBc8.5 ~ 12.5 MHz
1 MHz-35-10×(△f-7.5)dBc7.5 ~ 8.5 MHz
1 MHz-35-1×(△f-3.5)dBc3.5 ~ 7.5 MHz
30 kHz-35-15×(△f-2.5)dBc2.5 ~ 3.5 MHz
Measurement
Bandwidth
Minimum requirement
Frequency offset from
carrier △f
Sub-Test
1=1/15, 2=12/15 21~25dBm / 3.84 MHz
3=13/15 4=15/8 20~25dBm / 3.84 MHz
5=15/7 6=15/0 19~25dBm / 3.84 MHz
Maximum Output
Power
3GPP Not CompleteError Vector Magnitude
Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0
> 33 dB @ ±5 MHz
> 43 dB @ ±10 MHz
Adjacent Channel
Leakage
Power Ratio (ACLR)
Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0
Spectrum Emission
Mask
HS-DPCCH
880 MHz ~ 915 MHz
1920MHz ~ 1980 MHz
Transmit Frequency
SpecificationItem
+/- 2.35End of CQI4
+/- 0.60Middle of CQI3
+/- 0.61Start of CQI2
+/- 2.36Start of Ack/Nack1
5
Transmitter
power step
tolerance
[dB]
Power
step size,
P [dB]
Power step slot boundary
Power
step
Sub-
test in
table
C.10.1.
4
1 MHz-49dBc8.5 ~ 12.5 MHz
1 MHz-35-10×(△f-7.5)dBc7.5 ~ 8.5 MHz
1 MHz-35-1×(△f-3.5)dBc3.5 ~ 7.5 MHz
30 kHz-35-15×(△f-2.5)dBc2.5 ~ 3.5 MHz
Measurement
Bandwidth
Minimum requirement
Frequency offset from
carrier △f
HSDPA Tx Frequency spec.
Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0
BLER < 10% or R >= 700kbps
Maximum Input Level
(BLER or R), 16QAM Only
925 MHz ~ 960 MHz
2110 MHz ~2170 MHz
Receive Frequency
SpecificationItem
Sub-Test : 1=1/15, 2=12/15, 3=13/15, 4=15/8, 5=15/7, 6=15/0
BLER < 10% or R >= 700kbps
Maximum Input Level
(BLER or R), 16QAM Only
925 MHz ~ 960 MHz
2110 MHz ~2170 MHz
Receive Frequency
SpecificationItem
GW520 service manual
HSDPA Tx Frequency spec.
HSDPA Rx Frequency spec.

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2. PERFORMANCE
Bluetooth spec.
Item Specification
Output Power(TRM/CA/01/C) Class2 : -6 dBm < Pav < 4 dBm
Power Density(TRM/CA/02/C) Power density < 100mW(20dBm) per 100kHz EIRP
Power Control(TRM/CA/03/C) Step size of the power control : 2dB <step size<8dB
TX Output Spectrum-Frequency
Range(TRM/CA/04/C) 2.4000 GHz ~ 2.4835 GHz
TX Ouptut Spectrum-20 dB
Bandwidth(TRM/CA/05/C) │f (H) - f (L) │≤ 1.0MHz
TX Output Spectrum-Adjacent Channel
power(TRM/CA/06/C)
PTX(f) ≤-20dBm for │M – N │= 2
PTX(f) ≤-40dBm for │M – N │≥3
Modulation Characteristics(TRM/CA/07/C) 140KHz ≤delta f1 max ≤175KHz
△f2 max ≥115KHz (△f2 avg /△f1 avg) ≥0.8
Initial Carrier Frequency Tolerance(TRM/CA/08/C) Ftx – 75kHz ≤f0 ≤ftx + 75kHz
Carrier Frequency Drift(TRM/CA/09/C)
DH 1 ≤±25 kHz DH 2 ≤±40 kHz
DH 3 ≤±40 kHz
Max. Drift Rate (DH 1/DH3/DH5) ( / 50 us) ≤20 kHz
Sensitivity-Single Slot PaCKET(RCV/CA/01/C) BER ≤0.1% (min # of samples, 1600000 returned
payload bits)
Sensitivity-Multi Slot Packet(RCV/CA/02/C) BER ≤0.1% (min # of samples, 1600000 returned
payload bits)
C/I Performance(RCV/CA/03/C) BER ≤0.1%
Blocking Performance(RCV/CA/04/C)
BER ≤0.1% (min # of samples, 1600000 returned
payload bits)
# of freq. recorded in step v ≤24
# of freq. recorded in step v1 ≤5
Intermodulation Performance(RCV/CA/05/C) BER ≤0.1%
Maximum Input Level(RCV/CA/06/C) BER ≤0.1% (min # of samples, 1600000 returned
payload bits)
페이지삭제후아래 삽입

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Copyright © 2009 LG Electronics. Inc. All right reserved.
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3. BB Circuit Technical brief
3. BB Circuit Technical brief
GW520 service manual
3.1 Functional Block Diagram
[Figure 3.1] Functional Block Diagram
XMM6080
(HSDPA)
CAMERA (3M)
USB2.0
FULL
Micro
SD
Main key
LED
SPEAKER
MOTOR
LCD(WqVGA)
USIM
NAND
DATA
I2C
UART1
RX ADC
TX DAC
UART
VIB_DRV_N
MMC I/F
SDRAM_ DATA
EBU_ ADDR
UART0
D(0:15)
I2S
RF
PAM
FEM
Filter
BT
அ
FM Radio
Audio
AMP
I2C
USIM I/F
Audio Out
SDRAM
1Gbit
NAND
Flash
2Gbit
USB
A(0:24)
D(0:7)
8bit
LCD
32K
26M
26M
FM Audio
FM Audio
Touch
Screen
3-Axis
Sensor
32K
PMB
6821
(PMIC)
I2C
I2C
Battery
QWERTY
KEY
KEY
Encoder
I2C
MIC
Mic In
I2C
MUIC
Receiver
I2C

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3. BB Circuit Technical brief
GW520 service manual
3.2 Baseband Processor Introduction
[Figure 3.2] Top level block diagram of S-GOLD®3H(PMB8878)

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3. BB Circuit Technical brief
GW520 service manual
3.2.1 General description
S-GOLD®3H is a HSDPA/WCDMA/EDGE/GPRS/GSM system in package solution consisting of a
mixed signal baseband IC combined with a 3G coprocessor IC, providing all analog and digital
functionality for a dual mode mobile phone in a single chip.
Both ICs building up the S-GOLD®3H SiP are manufactured in infineon Technologies` 1.35V 90nm
CMOS technology to meet the ever increasing demands of the market for feature rich and high
performance terminals at low costs.
The chip will support the FR, EFR, HR and AMR-NB vocoding.
S-GOLD®3H support multi-slot operation modes HSCSD (up to class 10), GPRS for high speed data
application (up to class 12), EGPRS (up to class 12) and DTM(class11) without additional external
hardware.
3.2.2. Block Description
zProcessing core
- ARM926EJ-S 32 bit processor core for controller functions. The ARM926EJ-S includes an MMU,
and the Jazelle Java extension for Java acceleration and a MOVE co-processor to accelerate
Motion Estimation algorithms with based video encoding schemes..
- TEAKLite DSP core
zARM9-Memory
- 32k Byte Boot ROM on the AHB
- 128k Byte SRAM on the AHB, flexibly usable as program or data RAM
- 32k Byte Instruction Cache
- 32k Byte Data Cache
- 8k Byte Instruction Tightly coupled Memory (I-TCM)
- 8k Byte Data tightly coupled memory (D-TCM)
zTEAKLite®-Memory
- 120k x 16bit Program ROM
- 8k x 16bit Program RAM
- 72k x 16bit Data ROM
- 48k x 16bit Data XRAM
- 5k x 16bit Data YRAM
- Incremental Redundancy(IR) Memory of 35904 words of 16bit

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LGE Internal Use Only Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
3. BB Circuit Technical brief
GW520 service manual
zShared Memory Block
1.5K x 32bit Shared RAM(dual ported) between controller system and TEAKLite®.
zController 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.
- An FPI-Bus for connecting GSM peripherals, called hereafter FPI3 bus.
- A controller FPI bus for connecting the low performance controller peripherals such as keypad
etc. called hereafter fPI2 bus.
- FPI2 and FPI3 are connected asynchronously to the AHB buses. 1 DMA controller with
8channels offloads the controller from data transfers.
- 2 AHB Lite buses for connecting multi-media and high performance peripherals, called
AHB_PER1 and AHB_PER2 hereafter. These peripheral buses are connected to the multi-layer
AHB ‘backbone’ by asynchronous, burst capable AHB2AHB bridges which are shared between
accessing masters.
- The DMA controller is enabled to access AHB_PER1 by use of its first master interface and
AHB_PER2 by its second master interface.
zTEAKLite® Bus System
- 1 TEAKLite® data bus for connecting the TEAKLite® data memory and the TEAKLite® peripherals.
Also the data bus is connected into the controller system via shared RAMs to the FPI3 bus.
- 1 TEAKLite® program bus for connecting the TEAKLite® program memory to the TEAKLite®.
zClock system
The clock system allows widely independent selection of frequencies for the essential parts of the S-
GOLD®3H. Thus power consumption and performance can be optimized for each application.
zFunctional Hardware block
- CPU and DSP Timers
- MOVE coprocessor performing motion estimation for video encoding algorithms
(H.263, MPEG-4)
- Programmable PLL with four 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

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Copyright © 2009 LG Electronics. Inc. All right reserved.
Only for training and service purposes
LGE Internal Use Only
3. BB Circuit Technical brief
GW520 service manual
- 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
- f8 and f9 Cipher unit
- Advanced static and dynamic power management features including TDMA-Frame
synchronous low-power mode and enhanced CPU modes(idle and sleep modes)
- 2D engine for support of image processing and 2D graphics applications. The 2D engine is tightly
coupled to the display interface. The resulting building block consisting of 2D engine and Display
interface is called Display Content Controller (DCC)
- Security crypto box supporting
· AES, DES, 3 DES
· Hash function
· RSA acceleration
· Secret Root Key (e-fuse) and Key Management
· True Random Number Generator
- Sample Rate Converter (SRC) for audio up-sampling
- Comprehensive static and dynamic Power Management
· Various frequency options during operation mode
· 32 kHz clock in standby mode
· Sleep control in standby mode
· RAMs and ROMs in power save mode during standby mode
· Additional leakage current reduction in standby mode possible by switching off for the
TEAKLitre® subsystem.
- Extensive debug support for the controller and the DSP system
· OCDS level 2+ (run control, non-intrusive program flow trace and limited data flow
trace) for ARM
· OCDS level 1+ (run control, limited program flow trace) for the TEAKLite®
· Multi-core debug support
· 4 Monitor pins for important internal signals and most pad signals
· Cerberus debugging unit
- 2 General Purpose Timers with 3 32-bit timers
- Serial number
- A real time clock with alarm functions
- 2 capture/compare units with 16 channels. One channel active during sleep mode.