Quectel Smart Module Series, Проектирование аппаратного обеспечения

Страница: 6 / 107

Smart Module Series
SA800U-WF Hardware Design
SA800U-WF_Hardware_Design 5 / 106
Contents
Safety Information ....................................................................................................................................... 3
About the Document ................................................................................................................................... 4
Contents ....................................................................................................................................................... 5
Table Index ................................................................................................................................................... 7
Figure Index ................................................................................................................................................. 9
1 Introduction ........................................................................................................................................ 10
2 Product Concept ................................................................................................................................ 11
2.1. General Description .................................................................................................................. 11
2.2. Key Features ............................................................................................................................. 12
2.3. Functional Diagram ................................................................................................................... 14
2.4. Evaluation Board ....................................................................................................................... 15
3 Application Interfaces ....................................................................................................................... 16
3.1. General Description .................................................................................................................. 16
3.2. Pin Assignment ......................................................................................................................... 17
3.3. Pin Description .......................................................................................................................... 18
3.4. Power Supply ............................................................................................................................ 38
3.4.1. Power Supply Pins ......................................................................................................... 38
3.4.2. Decrease Voltage Drop .................................................................................................. 38
3.4.3. Reference Design for Power Supply .............................................................................. 39
3.5. Turn on and off Scenarios ......................................................................................................... 40
3.5.1. Turn on the Module Using PWRKEY ............................................................................. 40
3.5.2. Turn on the Module Automatically Using CBL_PWR_N ................................................ 42
3.5.3. Turn off/Restart the Module ........................................................................................... 43
3.6. VRTC Interface ......................................................................................................................... 43
3.7. Power Output ............................................................................................................................ 44
3.8. Battery Charging and Management .......................................................................................... 45
3.9. USB Interfaces .......................................................................................................................... 48
3.9.1. USB1 Interface ............................................................................................................... 48
3.9.1.1. USB Type-C Mode ............................................................................................... 48
3.9.1.2. DisplayPort Mode ................................................................................................. 50
3.9.2. USB2 Interface ............................................................................................................... 51
3.9.3. Design Principles ........................................................................................................... 52
3.10. UART Interface.......................................................................................................................... 54
3.11. PCIe Interfaces ......................................................................................................................... 55
3.12. SD Card Interface ..................................................................................................................... 57
3.13. GPIO Interfaces ........................................................................................................................ 59
3.14. I2C Interfaces ............................................................................................................................ 60
3.15. SPI Interfaces ............................................................................................................................ 61
3.16. ADC Interfaces .......................................................................................................................... 62
3.17. Vibrator Drive Interface ............................................................................................................. 62