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EC25-AUX
Quectel EC25-AUX Manuals
Manuals and User Guides for Quectel EC25-AUX. We have
1
Quectel EC25-AUX manual available for free PDF download: Hardware Design
Quectel EC25-AUX Hardware Design (135 pages)
LTE Standard Module Series
Brand:
Quectel
| Category:
Control Unit
| Size: 1.99 MB
Table of Contents
About the Document
3
Contents
7
Table of Contents
7
1 Introduction
14
Safety Information
15
2 Product Concept
17
General Description
17
Key Features
18
Functional Diagram
21
Evaluation Board
22
3 Application Interfaces
23
General Description
23
Pin Assignment
24
Pin Description
25
Operating Modes
37
Power Saving
37
Sleep Mode
37
UART Application
38
USB Application with USB Remote Wakeup Function
38
USB Application with USB Suspend/Resume and RI Function
39
USB Application Without USB Suspend Function
40
Airplane Mode
40
Power Supply
41
Power Supply Pins
41
Decrease Voltage Drop
42
Reference Design for Power Supply
43
Monitor the Power Supply
43
Power-On/Off Scenarios
44
Turn on Module Using the PWRKEY
44
Turn off Module
46
Turn off Module Using the PWRKEY Pin
46
Turn off Module Using at Command
46
Reset Module
47
U)SIM Interface
48
USB Interface
51
UART Interfaces
52
PCM and I2C Interfaces
55
SD Card Interface
57
Wireless Connectivity Interfaces
59
WLAN Interface
62
BT Interface
62
ADC Interfaces
62
SGMII Interface
63
Network Status Indication
65
Status
67
Behaviors of RI
67
USB_BOOT Interface
68
4 GNSS Receiver
70
General Description
70
GNSS Performance
70
Layout Guidelines
71
5 Antenna Interfaces
72
Main/Rx-Diversity Antenna Interfaces
72
Pin Definition
72
Operating Frequency
72
Reference Design of RF Antenna Interface
74
Reference Design of RF Layout
74
GNSS Antenna Interface
76
Antenna Installation
78
Antenna Requirement
78
Recommended RF Connector for Antenna Installation
79
6 Electrical, Reliability and Radio Characteristics
81
Absolute Maximum Ratings
81
Power Supply Ratings
82
Operation and Storage Temperatures
82
Current Consumption
83
RF Output Power
105
RF Receiving Sensitivity
106
Electrostatic Discharge
114
Thermal Consideration
114
7 Mechanical Dimensions
117
Mechanical Dimensions of the Module
117
Recommended Footprint
119
Design Effect Drawings of the Module
120
8 Storage, Manufacturing and Packaging
121
Storage
121
Manufacturing and Soldering
122
Packaging
123
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