MG2639 User Manual
Version:V1.0
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Descriptions of version update
Product version Document version Document No.
MG2639 V1.0
Author
Descriptions of
document update
Release for the first
time
Document
version
Date Written by Checked by Approved by
1.0 2011-8-22 Zhou Tao
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©ZTE CORPORATION All rights reserved
This document is not allowed to
transmit without ZTE
Corporation’s permission.
With strong technical force, ZTE Corporation can provide CDMA/GPRS/WCDMA module
customers with the following all-around technical support:
1. Provide complete technical documentation;
2. Provide the development board used for R&D, test, production, after-sales, etc.;
3. Provide evaluations and technical diagnosis for principle diagram, PCB, test scenarios;
4. Provide test environment;
ZTE Corporation provides customers with onsite supports, and also you could get supports
through telephone, website, instant communication, E-mail, etc.
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transmit without ZTE Corporation’s
permission. ©ZTE CORPORATION All rights reserved
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Preface
Summary
This document introduces MG2639 module’s product principle diagram, PINs, hardware interface
and module’s mechanical design, which can instruct the users how to quickly and conveniently
design different kinds of wireless terminals based on this type of module.
Target Readers
This document mainly applies to the following engineers:
System designing engineers
Mechanical engineers
Hardware engineers
Software engineers
Test engineers
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transmit without ZTE
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Contents
1 GENERAL DESCRIPTION OF MODULE ........................................................................ 1
1.1 INTRODUCTION OF MODULE’S FUNCTIONS ..................................................... 1
1.2 MODULE’S PRINCIPLE DIAGRAM ....................................................................... 2
1.3 ABBREVIATIONS ................................................................................................... 3
2 DESCRIPTIONS OF MODULE’S EXTERNAL INTERFACES ........................................ 5
2.1 DEFINITIONS OF MODULE’S INTERFACES ........................................................ 5
2.2 ANTENNA INTERFACE ......................................................................................... 6
3 MODULE’S ELECTRICAL CHARACTERISTICS ........................................................... 8
3.1 DESCRIPTIONS OF LEVELS OF INTERFACE SIGNALS ..................................... 8
3.1.1 RESET .......................................................................................................... 8
3.1.2 SIM CARD INTERFACE ............................................................................... 8
3.1.3 AUDIO INTERFACE ..................................................................................... 9
3.1.4 NETWORK SIGNAL INDICATION ................................................................ 9
3.2 MODULE POWER CONSUMPTION .................................................................... 10
3.3 RELIABILITY CHARA CTERISTICS ..................................................................... 10
4 INTERFACE CIRCUIT DESIGN .................................................................................... 11
4.1 RESET AND POWER DESIGN ............................................................................ 11
4.2 UART INTERFACE ............................................................................................... 12
4.3 SIM CARD INTERFACE ....................................................................................... 13
4.4 AUDIO INTERFACE ............................................................................................. 14
5 MECHANICAL DIMENSIONS ....................................................................................... 15
5.1 APPEARANCE DIAGRAM ................................................................................... 15
5.2 MODULE ASSEMBLY DIAGRAM ........................................................................ 15
5.3 PCB DIMENSIONS .............................................................................................. 16
6 ANTENNA INTERFACE ................................................................................................ 16
6.1 ANTENNA INSTALLATION .................................................................................. 17
6.2 ANTENNA PAD .................................................................................................... 17
6.3 ANTENNA CONNECTOR .................................................................................... 17
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6.4 ANTENNA SUBSYSTEM ..................................................................................... 18
6.4.1 ANTENNA SPECIFICATIONS .................................................................... 18
6.4.2 CABLE LOSS.............................................................................................. 19
6.4.3 ANTENNA GAIN MAXIMUM REQUIREMENTS ......................................... 19
6.4.4 ANTENNA MATCHING ............................................................................... 19
6.4.5 PCB DESIGN CONSIDERATIONS ............................................................. 19
ANTENNA INTERFACE ................................................................................................. 19
7 OEM/INTEGRATORS INSTALLATIONS ...................................................................... 20
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Figures
Figure 1-1 Module’s principle diagram ............................................................................................ 2
Figure 2-1 Antenna interface diagram ............................................................................................. 6
Figure 5-1 MG2639 module’s appearance .................................................................................... 15
Figure 5-2 Module’s assembly diagram ........................................................................................ 15
Figure 5-3 Relevant PCB dimensions ........................................................................................... 16
Tables
Table 1-1 Module’s functions .......................................................................................................... 1
Table 1-1 28Pin stamp-hole definition............................................................................................. 5
Table 4-1 Voltage characteristics .................................................................................................. 11
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