Product Info

Automotive Module Series
AG35 Hardware Design
AG35_Hardware_Design 4 / 129
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 4
Table Index ................................................................................................................................................... 7
Figure Index ................................................................................................................................................. 9
1 Introduction ........................................................................................................................................ 11
1.1. Safety Information ..................................................................................................................... 15
2 Product Concept ................................................................................................................................ 17
2.1. General Description .................................................................................................................. 17
2.2. Key Features ............................................................................................................................. 18
2.3. Functional Diagram ................................................................................................................... 21
2.4. Evaluation Board ....................................................................................................................... 22
3 Application Interfaces ....................................................................................................................... 23
3.1. General Description .................................................................................................................. 23
3.2. Pin Assignment ......................................................................................................................... 24
3.3. Pin Description .......................................................................................................................... 25
3.4. Operating Modes ....................................................................................................................... 36
3.5. Power Saving ............................................................................................................................ 37
3.5.1. Sleep Mode .................................................................................................................... 37
3.5.1.1. UART Application ................................................................................................ 38
3.5.1.2. USB Application with USB Remote Wakeup Function ....................................... 38
3.5.1.3. USB Application with USB Suspend/Resume and RI Functions ........................ 39
3.5.1.4. USB Application without USB Suspend Function ............................................... 40
3.5.2. Airplane Mode ................................................................................................................ 40
3.6. Power Supply ............................................................................................................................ 41
3.6.1. Power Supply Pins ......................................................................................................... 41
3.6.2. Decrease Voltage Drop .................................................................................................. 42
3.6.3. Reference Design for Power Supply .............................................................................. 43
3.6.4. Monitor the Power Supply .............................................................................................. 43
3.7. Turn on and off Scenarios ......................................................................................................... 43
3.7.1. Turn on Module Using the PWRKEY ............................................................................. 43
3.7.2. Turn off Module .............................................................................................................. 45
3.7.2.1. Turn off Module Using the PWRKEY Pin ............................................................ 45
3.7.2.2. Turn off Module Using AT Command .................................................................. 46
3.7.2.3. Turn off Module Using SHDN_N ......................................................................... 46
3.8. Reset the Module ...................................................................................................................... 48
3.9. (U)SIM Interface ........................................................................................................................ 49
3.10. USB Interface ............................................................................................................................ 51
3.11. UART Interfaces ........................................................................................................................ 53