Quectel EG91-EC LTE Module Manuals

Manuals and User Guides for Quectel EG91-EC LTE Module. We have 1 Quectel EG91-EC LTE Module manual available for free PDF download: Hardware Design

Quectel EG91-EC Hardware Design

Quectel EG91-EC Hardware Design (98 pages)

LTE Module

Brand: Quectel | Category: Control Unit | Size: 2 MB

Table of Contents

About the Document

3
Contents

5
- Table of Contents
  5
1 Introduction

12
- Safety Information
  13
- FCC/ISED Regulatory Notices
  14
2 Product Concept

17
- General Description
  17
- Key Features
  18
- Functional Diagram
  20
- Evaluation Board
  21
3 Application Interfaces

22
- General Description
  22
- Pin Assignment
  23
- Pin Description
  24
- Operating Modes
  31
- Power Saving
  32
  - Sleep Mode
    32
    
    UART Application
    32
    
    USB Application with USB Remote Wakeup Function
    33
    
    USB Application with USB Suspend/Resume and RI Function
    33
    
    USB Application Without USB Suspend Function
    34
  - Airplane Mode
    35
- Power Supply
  35
  - Power Supply Pins
    35
  - Decrease Voltage Drop
    36
  - Reference Design for Power Supply
    37
  - Monitor the Power Supply
    38
- Power-On/Off Scenarios
  38
  - Turn on Module Using the PWRKEY
    38
  - Turn off Module
    40
    
    Turn off Module Using the PWRKEY Pin
    40
    
    Turn off Module Using at Command
    40
- Reset the Module
  41
- U)SIM Interfaces
  42
- USB Interface
  45
- UART Interfaces
  47
- PCM and I2C Interfaces
  49
- SPI Interface
  52
- Network Status Indication
  52
- Status
  53
- ADC Interface
  54
- Behaviors of RI
  55
- USB_BOOT Interface
  56
4 GNSS Receiver

58
- General Description
  58
- GNSS Performance
  58
- Layout Guidelines
  59
5 Antenna Interfaces

60
6 Electrical, Reliability and Radiocharacteristics

68
- Absolute Maximum Ratings
  68
- Power Supply Ratings
  68
- Operation and Storage Temperatures
  69
- Current Consumption
  70
- RF Output Power
  77
- RF Receiving Sensitivity
  78
- Electrostatic Discharge
  80
- Thermal Consideration
  80
7 Mechanical Dimensions

83
8 Storage, Manufacturing and Packaging

87
- Storage
  87
- Manufacturing and Soldering
  88
- Packaging
  89
9 Appendix A References

91
10 Appendix B GPRS Coding Schemes

95

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