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 ................................................................................................................................ 16
2.1. General Description .................................................................................................................. 16
2.2. Key Features ............................................................................................................................. 17
2.3. Functional Diagram ................................................................................................................... 20
2.4. Evaluation Board ....................................................................................................................... 21
3 Application Interfaces ....................................................................................................................... 22
3.1. General Description .................................................................................................................. 22
3.2. Pin Assignment ......................................................................................................................... 23
3.3. Pin Description .......................................................................................................................... 24
3.4. Operating Modes ....................................................................................................................... 35
3.5. Power Saving ............................................................................................................................ 36
3.5.1. Sleep Mode .................................................................................................................... 36
3.5.1.1. UART Application ................................................................................................ 37
3.5.1.2. USB Application with USB Remote Wakeup Function ....................................... 37
3.5.1.3. USB Application with USB Suspend/Resume and RI Functions ........................ 38
3.5.1.4. USB Application without USB Suspend Function ............................................... 39
3.5.2. Airplane Mode ................................................................................................................ 39
3.6. Power Supply ............................................................................................................................ 40
3.6.1. Power Supply Pins ......................................................................................................... 40
3.6.2. Decrease Voltage Drop .................................................................................................. 41
3.6.3. Reference Design for Power Supply .............................................................................. 42
3.6.4. Monitor the Power Supply .............................................................................................. 42
3.7. Turn on and off Scenarios ......................................................................................................... 42
3.7.1. Turn on Module Using the PWRKEY ............................................................................. 42
3.7.2. Turn off Module .............................................................................................................. 44
3.7.2.1. Turn off Module Using the PWRKEY Pin ............................................................ 44
3.7.2.2. Turn off Module Using AT Command .................................................................. 45
3.7.2.3. Turn off Module Using SHDN_N ......................................................................... 45
3.8. Reset the Module ...................................................................................................................... 47
3.9. (U)SIM Interface ........................................................................................................................ 48
3.10. USB Interface ............................................................................................................................ 50
3.11. UART Interfaces ........................................................................................................................ 52