LG KP210 User manual

Date: February, 2008 / Issue 1.0
Service Manual Model : KP210/KP215
Service Manual
KP210/KP215

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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(KP210a) .......... 10
2.3 Technical Specification (KP215b) ......... 15
3. TECHNICAL BRIEF ....................... 20
3.1 TX module (SKY77517/SKY77518, U401)
.............................................................. 20
3.2 Transceiver (AD6548, U402) ................ 22
3.3 26 MHz Clock (Crystal, X401)............... 24
3.4 Baseband Processor (AD6721, U102).. 25
3.5 Display and Interface ............................ 31
3.6 Camera Interface(AIT701G, U300)....... 33
3.7 Keypad Switches and Scanning ............35
3.8 Microphone ............................................36
3.9 Main Speaker.........................................37
3.10 Headset Interface.................................38
3.11 Key Back-light Illumination...................39
3.12 LCD Back-light Illumination..................40
3.13 VIBRATOR...........................................41
3.14 Battery Charging ..................................42
4. TROUBLE SHOOTING ...................43
4.1 RF Component.......................................43
4.2 RX Trouble.............................................44
4.3 TX Trouble .............................................49
4.4 Power On Trouble..................................55
4.5 Charging Trouble ...................................57
4.6 Vibrator Trouble .....................................59
4.7 LCD Trouble...........................................61
4.8 Camera Trouble .....................................64
4.9 Speaker Trouble ....................................67
4.10 SIM Card Interface Trouble..................69
4.11 Earphone Trouble ................................71
4.12 KEY backlight Trouble .........................73
4.13 Receiver Trouble..................................75
4.14 Microphone Trouble .............................77
4.15 RTC Trouble ........................................79
4.16 Folder on/off Trouble............................81
4.17 Micro SD Trouble .................................83
5. DOWNLOAD.......................................85
5.1 Download ...............................................85
6. BLOCK DIAGRAM ..........................91
7. CIRCUIT DIAGRAM ........................93
8. BGA IC Pin Check ..........................99
9. PCB LAYOUT ................................103
10. ENGINEERING MODE ................109
10.1 BB Test [MENU 1]..............................110
10.2 RF Test [MENU 2]..............................112
10.3 MF mode [MENU 3] ...........................112
10.4 Trace option [MENU 4] ......................113
10.5 Call timer [MENU 5] ...........................113
10.6 Fact. Reset [MENU 6] ........................113
10.7 S/W version........................................113
11. STAND ALONE TEST .................114
11.1 Introduction ........................................114
11.2 Setting Method...................................114
11.3 Means of Test ....................................115
12. AUTO CALIBRATION..................117
12.1 Overview ............................................117
12.2 Equipment List ...................................117
12.3 Test Jig Operation..............................118
12.4 Procedure ..........................................119
12.5 AGC ...................................................121
12.6 APC....................................................121
12.7 ADC ...................................................121
13. EXPLODED VIEW &
REPLACEMENT PART LIST ..... 123
13.1 Exploded View .................................. 123
13.2 Replacement Parts ............................125
Table Of Contents
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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1. INTRODUCTION
1.1 Purpose
This manual provides the information necessary to repair, calibration, 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 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.
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 unauthorized alternations or repair may affect the regulatory status of the system
and may void any remaining warranty.
1. INTRODUCTION
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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1. INTRODUCTION
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
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 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 matb 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.
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

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1. INTRODUCTION
1.3 Abbreviations
For the purposes of this manual, following abbreviations apply:
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
APC Automatic Power Control
BB Baseband
BER Bit Error Ratio
CC-CV Constant Current – Constant Voltage
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
ESD Electrostatic Discharge
FPCB Flexible Printed Circuit Board
GMSK Gaussian Minimum Shift Keying
GPIB General Purpose Interface Bus
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
OPLL Offset Phase Locked Loop

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1. INTRODUCTION
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
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
SIM Subscriber Identity Module
SLR Sending Loudness Rating
SRAM Static Random Access Memory
PSRAM Pseudo SRAM
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

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2. PERFORMANCE
2.1 H/W Features
2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Feature Comment
Standard Battery Li-ion, 3.7V 800mAh
Talk time Up to 180min: GSM Tx Level 7
Stand by time Up to 250 hours (Paging Period: 5, RSSI: -85 dBm)
Charging time Approx. 2.5 hours
RX Sensitivity -102dBm
TX output power GSM850, GSM900: 32.5dBm(Level 5),
DCS, PCS: 29.5dBm(Level 0)
GPRS compatibility Class 10
SIM card type 3V Small
Display
MAIN: TFT 128 ×160 pixel 262K Color
SUB: CSTN 96 ×64 pixel 65K Color
Hard icons. Key Pad
Status Indicator 0 ~ 9, #, *, Up/Down/Left/Right/Ok Navigation Key
Menu Key, Clear Key, Back Key, Confirm Key
Send Key, Volume Key, PWR Key, Camera Key, Hot Key
ANT Internal
EAR Phone Jack Yes (Stereo)
PC Synchronization Yes
Speech coding EFR/FR/HR
Data Yes
Vibrator Yes
Loud Speaker Yes
Voice Recoding Yes
Microphone Yes
Speaker/Receiver One way speaker
Travel Adapter Yes
MIDI SW MIDI
Camera VGA

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2. PERFORMANCE
2.2 Technical Specification(KP210a)
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
GSM850
TX: 824 + 0.2 x (n-127) MHz
1Frequency Band RX: 869 + 0.2 x (n-127) MHz ( n = 128 ~ 251)
PCS1900
TX: 1850 + ( n-511) x 0.2 MHz
RX: 1930 + ( n-511) x 0.2 MHz (n = 512 ~ 810)
2Phase Error RMS < 5 degrees
Peak < 20 degrees
3Frequency Error < 0.1ppm
GSM850
Level Power Toler. Level Power Toler.
533 dBm 2dB 13 17 dBm 3dB
631 dBm 3dB 14 15 dBm 3dB
729 dBm 3dB 15 13 dBm 3dB
827 dBm 3dB 16 11 dBm 5dB
925 dBm 3dB 17 9 dBm 5dB
10 23 dBm 3dB 18 7 dBm 5dB
11 21 dBm 3dB 19 5 dBm 5dB
4Power Level 12 19 dBm 3dB
PCS
Level Power Toler. Level Power Toler.
030 dBm 2dB 8 14 dBm 3dB
128 dBm 3dB 9 12 dBm 4dB
226 dBm 3dB 10 10 dBm 4dB
324 dBm 3dB 11 8 dBm 4dB
422 dBm 3dB 12 6 dBm 4dB
520 dBm 3dB 13 4 dBm 4dB
618 dBm 3dB 14 2 dBm 5dB
716 dBm 3dB 15 0 dBm 5dB
5EDGE Not support
Max. Power
6EDGE Not support
Modulation Accuracy

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
GSM850
Offset from Carrier (kHz). Max. [dBc]
100 0.5
200 -30
250 -33
400 -60
600 ~ 1,200 -60
1,200 ~ 1,800 -60
1,800 ~ 3,000 -63
3,000 ~ 6,000 -65
7Output RF Spectrum 6,000 -71
(Due to Modulation) PCS
Offset from Carrier (kHz). Max. [dBc]
100 0.5
200 -30
250 -33
400 -60
600 ~ 1,200 -60
1,200 ~ 1,800 -60
1,800 ~ 3,000 -65
3,000 ~ 6,000 -65
6,000 -73
GSM850
Offset from Carrier (kHz) Max. [dBm]
Output RF Spectrum 400 -19
8(Due to Switching) 600 -21
1,200 -21
1,800 -24

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
PCS
Offset from Carrier (kHz) Max. [dBm]
Output RF Spectrum 400 -22
8(Due to Switching) 600 -24
1,200 -24
1,800 -27
9Spurious Emissions Conduction, Emission Status
Radiation, Emission Status
GSM850
10 Bit Error Ratio BER (Class II) < 2.439% @-102dBm
PCS
BER (Class II) < 2.439% @-102dBm
11 Rx Level Report accuracy 3 dB
12 SLR 8 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 -
200 0 -
300 0 -12
13 Sending Response 1,000 0 -6
2,000 4 -6
3,000 4 -6
3,400 4 -9
4,000 0 -
14 RLR(Normal volume) -4 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -6 -
Receiving Response 200 2 -
15 (Type 3.2) 300 2 -9
1,000 2 -7
3,400 2 -12
4,000 2 -

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
16 STMR > 17 dB
17 Echo Loss > 40 dB
18 Idle Noise Sending < -64 dBm0p
19 Idle Noise Receiving < -36 dBm0p
Max. power
< 330mA @GSM850, PL=5
< 250mA @PCS, PL=0
Standby
< 5.5mA @PP2
< 3.3mA @PP5
20 Power consumption < 2.7mA @PP9
Bluetooth
(not support)
FM radio
(not support)
Backup Battery(Without Main Battery)
Normal Power Off: < 5uA
Emergency Power Off: < 15uA
2.2 hr., Min.@GSM850, PL=5
21 Talk Time 4.0 hr., Min.@GSM850, PL=12
3.0 hr., Min.@PCS, PL=0
5.0 hr., Min.@PCS, PL=10
270 hr., Min.@PP9
220 hr., Min.@PP5
22 Standby Time - Full charge, no receive/send and keep GSM in idle mode
Broadcast set off. Signal strength display set at 3
levelabove. Backlight of phone set off.
At least 55 dB under below conditions:
23 Ringer Volume(TBD) 1. Ringer set as ringer.
2. Test distance set as 1 m.
24 Charge Current Fast Charge: < 500 mA
Slow Charge: < 120 mA
25 Charging Time Under 3 hr.

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
Antenna Bar Number Power
5-92 dBm ~
4-100 dBm ~ –93 dBm
26 Antenna Display 3 skip
2-103 dBm ~ –101 dBm
1-105 dBm ~ –104 dBm
0~–105 dBm
Battery Bar Number Voltage
1 →03.54V 0.05V
27 Battery Indicator(TBD) 2 →13.64V 0.05 V
3 →23.75V 0.05 V
34.2V
28 Low Voltage Warning(TBD) 3.54 0.05 V (Call)
3.40 0.05 V (Standby)
29 Forced shut down Voltage 3.33 0.05V
30 Battery Type Main Battery: Li-ion, 800mAh, Hard pack
Back-up Battery: Lithium, 1mAh
31 Travel Charger Input: 100 ~ 240 V, 50/60Hz
Output: 4.8V, 900mA

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
2.3 Technical Specification (KP215b)
Item Description Specification
GSM900
1) PGSM
TX: 890 + 0.2 x n MHz
1Frequency Band RX: 935 + 0.2 x n MHz (n = 1 ~ 124)
2) EGSM
TX: 890 + 0.2 x (n-1024) MHz
RX: 935 + 0.2 x (n-1024) MHz n = 975 ~ 1023)
DCS1800
TX: 1710.2 + 0.2 x (n-512) MHz
RX: 1805.2 + 0.2 x (n-512) MHz (n = 512 ~ 885)
2Phase Error RMS < 5 degrees
Peak < 20 degrees
3Frequency Error < 0.1ppm
GSM900
Level Power Toler. Level Power Toler.
533 dBm 2dB 13 17 dBm 3dB
631 dBm 3dB 14 15 dBm 3dB
729 dBm 3dB 15 13 dBm 3dB
827 dBm 3dB 16 11 dBm 5dB
925 dBm 3dB 17 9 dBm 5dB
10 23 dBm 3dB 18 7 dBm 5dB
11 21 dBm 3dB 19 5 dBm 5dB
4Power Level 12 19 dBm 3dB
DCS1800
Level Power Toler. Level Power Toler.
030 dBm 2dB 8 14 dBm 3dB
128 dBm 3dB 9 12 dBm 4dB
226 dBm 3dB 10 10 dBm 4dB
324 dBm 3dB 11 8 dBm 4dB
422 dBm 3dB 12 6 dBm 4dB
520 dBm 3dB 13 4 dBm 4dB
618 dBm 3dB 14 2 dBm 5dB
716 dBm 3dB 15 0 dBm 5dB
5EDGE Not support
Max. Power
6EDGE Not support
Modulation Accuracy

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
GSM900
Offset from Carrier (kHz). Max. [dBc]
100 0.5
200 -30
250 -33
400 -60
600 ~ 1,200 -60
1,200 ~ 1,800 -60
1,800 ~ 3,000 -63
3,000 ~ 6,000 -65
7Output RF Spectrum 6,000 -71
(Due to Modulation) DCS1800
Offset from Carrier (kHz). Max. [dBc]
100 0.5
200 -30
250 -33
400 -60
600 ~ 1,200 -60
1,200 ~ 1,800 -60
1,800 ~ 3,000 -65
3,000 ~ 6,000 -65
6,000 -73
GSM900
Offset from Carrier (kHz) Max. [dBm]
Output RF Spectrum 400 -19
8(Due to Switching) 600 -21
1,200 -21
1,800 -24

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
DCS1800
Offset from Carrier (kHz) Max. [dBm]
Output RF Spectrum 400 -22
8(Due to Switching) 600 -24
1,200 -24
1,800 -27
9Spurious Emissions Conduction, Emission Status
Radiation, Emission Status
GSM900
10 Bit Error Ratio BER (Class II) < 2.439% @-102dBm
DCS1800
BER (Class II) < 2.439% @-102dBm
11 Rx Level Report accuracy 3 dB
12 SLR 8 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -12 -
200 0 -
300 0 -12
13 Sending Response 1,000 0 -6
2,000 4 -6
3,000 4 -6
3,400 4 -9
4,000 0 -
14 RLR(Normal volume) -4 3 dB
Frequency (Hz) Max.(dB) Min.(dB)
100 -6 -
Receiving Response 200 2 -
15 (Type 3.2) 300 2 -9
1,000 2 -7
3,400 2 -12
4,000 2 -

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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Item Description Specification
16 STMR > 17 dB
17 Echo Loss > 40 dB
18 Idle Noise Sending < -64 dBm0p
19 Idle Noise Receiving < -36 dBm0p
Max. power
< 330mA @GSM850, PL=5
< 250mA @PCS, PL=0
Standby
< 5.5mA @PP2
< 3.3mA @PP5
20 Power consumption < 2.7mA @PP9
Bluetooth
(not support)
FM radio
(not support)
Backup Battery(Without Main Battery)
Normal Power Off: < 5uA
Emergency Power Off: < 15uA
2.2 hr., Min.@GSM900, PL=5
21 Talk Time 4.0 hr., Min.@GSM900, PL=12
3.0 hr., Min.@DCS, PL=0
5.0 hr., Min.@DCS, PL=10
270 hr., Min.@PP9
220 hr., Min.@PP5
22 Standby Time - Full charge, no receive/send and keep GSM in idle mode
Broadcast set off. Signal strength display set at 3
levelabove. Backlight of phone set off.
At least 55 dB under below conditions:
23 Ringer Volume(TBD) 1. Ringer set as ringer.
2. Test distance set as 1 m.
24 Charge Current Fast Charge: < 500 mA
Slow Charge: < 120 mA
25 Charging Time Under 3 hr.

Item Description Specification
Antenna Bar Number Power
5-92 dBm ~
4-100 dBm ~ -93 dBm
26 Antenna Display 3 skip
2-103 dBm ~ -101 dBm
1-105 dBm ~ -104 dBm
0~-105 dBm
Battery Bar Number Voltage
1 →03.54V 0.05V
27 Battery Indicator(TBD) 2 →13.64V 0.05 V
3 →23.75V 0.05 V
34.2V
28 Low Voltage Warning(TBD) 3.54 0.05 V (Call)
3.40 0.05 V (Standby)
29 Forced shut down Voltage 3.33 0.05V
30 Battery Type Main Battery: Li-ion, 800mAh, Hard pack
Back-up Battery: Lithium, 1mAh
31 Travel Charger Input: 100 ~ 240 V, 50/60Hz
Output: 4.8V, 900mA
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2. PERFORMANCE
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes

- 20 -
3. TECHNICAL BRIEF
3.1 TX module (SKY77517/SKY77518, U401)
The SKY77517 is a Transmit and receive front-end-module (FEM) with Integrated Power Amplifier
Control (iPAC) for dual-band cellular handsets comprising GSM850 and PCS1900 operation.
Designed in a low profile, compact form factor, the SKY77517 offers a complete Transmit VCO-to-
Antenna and Antenna-to-Receive SAW filter solution. The FEM also supports class 12 General Packet
Radio Service (GPRS) multi-slot operation.
The module consists of a GSM850 PA block and a PCS1900 PA block, impedance-matching circuitry
for 50 ohm input and output impedances, TX harmonics filtering, high linearity and low insertion loss
PHEMT RF switches, diplexer and a Power Amplifier Control (PAC) block with internal current sense
resistor. A custom BiCMOS integrated circuit provides the internal PAC function and decoder circuitry
to control the RF switches. The two Heterojunction Bipolar Transistor (HBT) PA blocks are fabricated
onto a single Gallium Arsenide (GaAs) die. One PA block supports the GSM850 band and the other
PA block supports the PCS 1900 band. Both PA blocks share common power supply pads to distribute
current. The output of each PA block and the outputs to the two receiver pads are connected to the
antenna pad through PHEMT RF switches and a diplexer. The GaAs die, PHEMT die, Silicon (Si) die
and passive components are mounted on a multi-layer laminate substrate. The assembly is
encapsulated with plastic overmold.
Band selection and control of transmit and receive modes are performed using two external control
pads. Refer to the functional block diagram in Figure 3.1 below. The band select pad (BS) selects
between GSM and PCS modes of operation. The transmit enable (TX_EN) pad controls receive or
transmit mode of the respective RF switch (TX = logic 1). Proper timing between transmit enable
(TX_EN) and Analog Power Control (VRAMP) allows for high isolation between the antenna and
TX_VCO while the VCO is being tuned prior to the transmit burst.
The SKY77517 is compatible with logic levels from 1.2V to VCC for BS and TX_EN pads, depending
on the level applied to the VLOGIC pad. This feature provids additional flexibility for the designer in the
selection of FEM interface control logic.
The SkY77518 is Txmodule for GSM900/DCS1800 dual-band. Every function and logic is equal tom
the SKY77517.
3. TECHNICAL BRIEF
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Figure 3.1.1 Functional Block Diagram

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3. TECHNICAL BRIEF
LGE Internal Use Only Copyright © 2008 LG Electronics. Inc. All right reserved.
Only for training and service purposes
Pin Mame Description
1VCATT Battery input voltage
2VLOGIC Control logic level selection/Standby control
3VRAMP Analog power control voltage input
4TX_EN TX/RX select (mode control)
5BSBand Select (mode control)
6DCS_RX DCS Receive RF Output (1930-1990 MHz)
7GSM_RX GSM Receive RF Output (869-894 MHz)
8-10 GND RF and DC Ground
11 ANT RF_IN/RF_OUT to Antenna
12-16 GND RF and DC Ground
17 GSM_IN RF input 824-849 MHz
18 NC No Connect
19 DCS_IN RF input 1850-1910 MHz
20 GND RF and DC Ground
GMD PADS GROUND GRID Ground Pads, module underside
Mode VLOGIC
Input Control Bits
TX_En BS
STANDBY 0 X1X1
GSM_RX 1 0 0
CS_RX 1 0 1
GSM_TX 1 1 0
PCS_TX 1 1 1
Table 3.1.1 Pad description
Table 3.1.2 Mode Control logic
Figure 3.1.2 Pad configuration (Top view) and case marking