Gosuncn Technology Group Co. Ltd. GM500U1A Manual De Usuario
All Rights reserved, No Spreading without
GOSUNCN
Permission II
GM500_U1A
Hardware Development Guide
A
BOUT
T
HIS
D
OCUMENT
A.
Application Range
This document is the Product Technical Specification for the GM500_U1A GSM/WCDMA/LTE-FDD module. It defines the high
level product features and illustrates the interface for these features. This document is intended to cover the hardware aspects of
the product, including electrical and mechanical.
B.
Reading Note
The symbols below are the reading notes you should pay attention on:
: WARNING or ATTENTION
: NOTE or REMARK
C.
Purpose
This document provides the hardware solutions and development fundamentals for a product with the module. By reading this
document, the user can have an overall knowledge of the module and a clear understanding of the technical parameters. With this
document, the user can successfully fulfill the application and development of wireless Internet product or equipment.
Besides the product features and technical parameters, this document also provides the product reliability tests and related
testing standards, RF performance indexes and a guide on the design of user circuits, to provide the user with a complete design
reference.
NOTE:
To ensure the module manufacturing and welding quality, do as the chapter 7 of Manufacturing Guide in
this document. The force on the squeegee should be adjusted so as to produce a clean stencil surface on a
single pass and ensure the module soldering quality.
D.
Abbreviations
Table below is a list of abbreviations involved in this document, as well as the English full names.
Abbreviations
Full Name
3GPP
Third Generation Partnership Project
AP
Another name of DTE
CHAP
Challenge Handshake Authentication Protocol
CE
European Conformity
CMOS
Complementary Metal Oxide Semiconductor
DCE
Data Communication Equipment
DL
Downlink
DTE
Data Terminal Equipment
EIA
Electronic Industries Association
EMC
Electromagnetic Compatibility
ESD
Electro-Static discharge
ESR
Equivalent Series Resistance
FDD
Frequency Division Duplex
GPIO
General-purpose I/O
LCC
Leadless Chip Carrier