Product Info

LTE Standard Module Series
EG95 Series Hardware Design
EG95_Series_Hardware_Design
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Contents
About the Document ...................................................................................................................................2
Contents .......................................................................................................................................................6
Table Index ...................................................................................................................................................8
Figure Index .............................................................................................................................................. 10
1 Introduction ....................................................................................................................................... 12
1.1. Safety Information ................................................................................................................... 13
2 Product Concept ............................................................................................................................... 14
2.1. General Description ................................................................................................................ 14
2.2. Key Features ........................................................................................................................... 15
2.3. Functional Diagram ................................................................................................................. 18
2.4. Evaluation Board ..................................................................................................................... 19
3 Application Interfaces ....................................................................................................................... 20
3.1. General Description ................................................................................................................ 20
3.2. Pin Assignment ....................................................................................................................... 21
3.3. Pin Description ........................................................................................................................ 22
3.4. Operating Modes..................................................................................................................... 29
3.5. Power Saving .......................................................................................................................... 30
3.5.1. Sleep Mode ................................................................................................................... 30
3.5.1.1. UART Application ................................................................................................ 30
3.5.1.2. USB Application with USB Remote Wakeup Function ........................................ 31
3.5.1.3. USB Application with USB Suspend/Resume and RI Function ........................... 31
3.5.1.4. USB Application without USB Suspend Function ................................................ 32
3.5.2. Airplane Mode ............................................................................................................... 33
3.6. Power Supply .......................................................................................................................... 33
3.6.1. Power Supply Pins ........................................................................................................ 33
3.6.2. Decrease Voltage Drop ................................................................................................. 34
3.6.3. Reference Design for Power Supply ............................................................................. 35
3.6.4. Monitor the Power Supply ............................................................................................. 36
3.7. Power-on/off Scenarios ........................................................................................................... 36
3.7.1. Turn on Module Using the PWRKEY ............................................................................. 36
3.7.2. Turn off Module ............................................................................................................. 38
3.7.2.1. Turn off Module Using the PWRKEY Pin ............................................................ 38
3.7.2.2. Turn off Module Using AT Command .................................................................. 38
3.8. Reset the Module .................................................................................................................... 39
3.9. (U)SIM Interfaces .................................................................................................................... 40
3.10. USB Interface .......................................................................................................................... 43
3.11. UART Interfaces ...................................................................................................................... 44
3.12. PCM and I2C Interfaces .......................................................................................................... 47
3.13. SPI Interface ........................................................................................................................... 49
3.14. Network Status Indication ....................................................................................................... 50