Home
Quectel
GSM/GPRS Modules
EG25-G
Quectel EG25-G User Manual
4
of 1
of 1 rating
103 pages
Give review
Manual
Specs
To Next Page
To Next Page
To Previous Page
To Previous Page
Loading...
LTE
Module
Series
EG25-G
Hardware
Design
EG25
-
G_Har
dware_
Design
82
/
100
The
heatsin
k
should
be
designed
with
as
many
fins
as
possible
to
increase
heat
dissip
ation
area.
Meanwhile,
a
thermal
pad
with
high
thermal
conductivity
should
be
used
between
the
heatsink
and
module/PC
B.
The
following shows
two kinds
of
heatsink designs f
or reference
and customers
can choose
one
or both
of them accord
ing to the
ir applicatio
n structure.
Heatsink
EG25-G Module
Application Board
Application Board
Heatsink
Thermal Pad
Shielding Cover
Figure
41
: Reference
d Heatsink
Design (Heatsi
nk at the To
p of the
Module)
Thermal Pad
Heatsink
Application Board
Application Board
Heatsink
Thermal Pad
EG25-G Module
Shielding Cover
Figure
42
: Reference
d Heatsink
Design (Heatsi
nk at the
Backsid
e of Customer
s
’
PCB
)
82
84
Table of Contents
About the Document
3
Table of Contents
4
Contents
4
Introduction
10
Safety Information
11
Product Concept
12
General Description
12
Key Features
13
Functional Diagram
15
Evaluation Board
16
Application Interfaces
17
General Description
17
Pin Assignment
18
Pin Description
19
Operating Modes
30
Power Saving
31
Sleep Mode
31
UART Application
31
USB Application with USB Remote Wakeup Function
32
USB Application with USB Suspension/Resume and RI Function
32
USB Application Without USB Suspension Function
33
Airplane Mode
34
Power Supply
34
Power Supply Pins
34
Decrease Voltage Drop
35
Reference Design for Power Supply
36
Monitor the Power Supply
37
Power-On and off Scenarios
37
Turn on Module Using the PWRKEY
37
Figure 11: Turn on the Module by Using Keystroke
38
Turn off Module
39
Turn off Module Using the PWRKEY Pin
39
Turn off Module Using at Command
39
Reset the Module
40
U)SIM Interface
41
Table 9: Pin Definition of (U)Sim Interface
42
Figure 18: Reference Circuit of (U)Sim Interface with a 6-Pin (U)Sim Card Connector
43
USB Interface
44
UART Interfaces
45
Table 11: Pin Definition of Main Uart Interface
46
Figure 20: Reference Circuit with Translator Chip
47
PCM and I2C Interfaces
48
Table 14: Pin Definition of Pcm and I2C Interfaces
49
SD Card Interface
50
Figure 25: Reference Circuit of Sd Card
51
Wireless Connectivity Interfaces
52
WLAN Interface
54
BT Interface
55
SGMII Interface
55
Table 17: Pin Definition of Sgmii Interface
56
ADC Interfaces
57
Network Status Indication
58
Status
59
Behaviors of RI
60
USB_BOOT Interface
61
GNSS Receiver
62
General Description
62
GNSS Performance
62
Layout Guidelines
63
Antenna Interfaces
64
Main/Rx-Diversity Antenna Interfaces
64
Pin Definition
64
Operating Frequency
64
Reference Design of RF Antenna Interface
66
Reference Design of RF Layout
66
Figure 33: Microstrip Design on a 2-Layer Pcb
67
GNSS Antenna Interface
68
Antenna Installation
69
Antenna Requirement
69
Recommended RF Connector for Antenna Installation
70
Figure 38: Dimensions of the U.fl-R-Smt Connector (Unit: MM)
71
Figure 40: Space Factor of Mated Connector (Unit: MM)
72
Electrical, Reliability and Radio Characteristics
73
Absolute Maximum Ratings
73
Power Supply Ratings
74
Operation and Storage Temperatures
74
Current Consumption
75
Table 35: Gnss Current Consumption of Eg25-G Module
79
RF Output Power
80
RF Receiving Sensitivity
80
Electrostatic Discharge
82
Thermal Consideration
82
Figure 41: Referenced Heatsink Design (Heatsink at the Top of the Module)
83
Mechanical Dimensions
85
Mechanical Dimensions of the Module
85
Figure 44: Module Bottom Dimensions (Bottom View)
86
Recommended Footprint
87
Design Effect Drawings of the Module
88
Storage, Manufacturing and Packaging
89
Storage
89
Manufacturing and Soldering
90
Packaging
91
Figure 49: Tape and Reel Specifications
92
Appendix A References
93
Appendix B GPRS Coding Schemes
97
Appendix C GPRS Multi-Slot Classes
98
Appendix D EDGE Modulation and Coding Schemes
100
IC & FCC Requirement
101
4
Based on 1 rating
Ask a question
Give review
Questions and Answers:
Need help?
Do you have a question about the Quectel EG25-G and is the answer not in the manual?
Ask a question
Quectel EG25-G Specifications
General
Brand
Quectel
Model
EG25-G
Category
GSM/GPRS Modules
Language
English
Related product manuals
Quectel MC60
11 pages
Quectel BC66
31 pages
Quectel GSM/GPRS Module Series
28 pages
Quectel M20
29 pages
Quectel M10
32 pages
Quectel SC200E Series
116 pages
Quectel L89 R2.0
26 pages
Quectel BG95-M3
84 pages
Quectel AF20
58 pages
Quectel LPWA Series
91 pages
Quectel BG950A-GL
91 pages
To Next PageTo Next PageTo Previous PageTo Previous Page
Loading...
Need help?
General
