Product Info

LTE Standard Module Series
EG95 Hardware Design
EG95_Hardware_Design 5 / 93
Contents
About the Document ..................................................................................................................................... 2
Contents.......................................................................................................................................................... 5
Table Index ..................................................................................................................................................... 7
Figure Index.................................................................................................................................................... 9
1 Introduction........................................................................................................................................... 11
1.1. Safety Information...................................................................................................................... 12
2 Product Concept .................................................................................................................................. 13
2.1. General Description ................................................................................................................... 13
2.2. Key Features.............................................................................................................................. 14
2.3. Functional Diagram ................................................................................................................... 17
2.4. Evaluation Board ....................................................................................................................... 18
3 Application Interfaces.......................................................................................................................... 19
3.1. General Description ................................................................................................................... 19
3.2. Pin Assignment .......................................................................................................................... 20
3.3. Pin Description ........................................................................................................................... 21
3.4. Operating Modes ....................................................................................................................... 28
3.5. Power Saving ............................................................................................................................. 29
3.5.1. Sleep Mode ...................................................................................................................... 29
3.5.1.1. UART Application ................................................................................................... 29
3.5.1.2. USB Application with USB Remote Wakeup Function ......................................... 30
3.5.1.3. USB Application with USB Suspend/Resume and RI Function ........................... 30
3.5.1.4. USB Application without USB Suspend Function ................................................. 31
3.5.2. Airplane Mode .................................................................................................................. 32
3.6. Power Supply ............................................................................................................................. 32
3.6.1. Power Supply Pins ........................................................................................................... 32
3.6.2. Decrease Voltage Drop .................................................................................................... 33
3.6.3. Reference Design for Power Supply ............................................................................... 34
3.6.4. Monitor the Power Supply................................................................................................ 35
3.7. Power-on/off Scenarios ............................................................................................................. 35
3.7.1. Turn on Module Using the PWRKEY .............................................................................. 35
3.7.2. Turn off Module ................................................................................................................ 37
3.7.2.1. Turn off Module Using the PWRKEY Pin .............................................................. 37
3.7.2.2. Turn off Module Using AT Command .................................................................... 37
3.8. Reset the Module....................................................................................................................... 38
3.9. (U)SIM Interfaces....................................................................................................................... 39
3.10. USB Interface............................................................................................................................. 42
3.11. UART Interfaces ........................................................................................................................ 43
3.12. PCM and I2C Interfaces ............................................................................................................ 46
3.13. SPI Interface .............................................................................................................................. 48
3.14. Network Status Indication.......................................................................................................... 49