Quectel EM121R-GL Manuals

Manuals and User Guides for Quectel EM121R-GL. We have 1 Quectel EM121R-GL manual available for free PDF download: Hardware Design

Quectel EM121R-GL Hardware Design

Quectel EM121R-GL Hardware Design (88 pages)

Brand: Quectel | Category: Control Unit | Size: 1.56 MB

Table of Contents

Safety Information

4
About the Document

5
Contents

6
- Table of Contents
  6
1 Introduction

13
- Reference Standard
  13
- Special Mark
  14
2 Product Concept

15
- General Description
  15
- Key Features
  16
- Functional Diagram
  19
- Pin Assignment
  20
- Pin Description
  21
- Evaluation Board
  25
3 Operating Characteristics

26
- Operating Modes
  26
  - Sleep Mode
    26
  - Airplane Mode
    28
- Communication Interface with the Host
  28
- Power Supply
  28
  - Decrease Voltage Drop
    29
  - Reference Design for Power Supply
    30
- Turn on
  30
- Turn off
  32
- Reset
  32
4 Application Interfaces

35
- U)SIM Interface
  35
- USB Interface
  40
- Pcie Interface
  42
  - Pin Definition of Pcie
    42
  - Reference Design for Pcie
    43
  - Pcie Timing
    44
    
    Pcie Turn-On Timing
    44
    
    Pcie Turn-Off Timing
    45
    
    Pcie Reset Timing
    46
    
    Pcie Modern Standby Timing
    47
- PCM Interface
  48
- Control and Indication Interfaces
  50
  - W_Disable1
    50
  - W_Disable2
    51
  - Wwan_Led
    52
  - Wake_On_Wan
    52
  - Dpr
    53
  - Wlan_Pa_En
    53
- Cellular/Wlan COEX Interface
  54
- Antenna Tuner Control Interface
  54
  - Antenna Tuner Control Interface through Gpios
    54
  - Antenna Tuner Control Interface through RFFE
    55
- Configuration Pins
  55
5 RF Characteristics

57
- Cellular Antenna Interfaces
  57
  - Connector Definition
    57
  - Operating Frequency
    57
  - Receiving Sensitivity
    59
  - Output Power
    60
- GNSS Antenna Interface
  63
  - General Description
    63
  - Connector Definition
    64
  - GNSS Frequency
    64
  - GNSS Performance
    65
- Antenna Connectors
  65
- Antenna Requirements
  69
6 Electrical Characteristics and Reliability

71
- Power Supply Requirements
  71
- Current Consumption
  71
  - Pcie Only Version
    71
  - USB Version
    72
- Digital I/O Characteristic
  72
- Electrostatic Discharge
  73
- Thermal Dissipation
  73
- Absolute Maximum Ratings
  75
- Operating and Storage Temperatures
  75
7 Mechanical Dimensions and Packaging

76
- Mechanical Dimensions of the Module
  76
- Top and Bottom Views of the Module
  77
- Connector
  77
- Packaging
  77
8 Appendix References

79

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