Product Info
Table Of Contents
- About the Document
- Contents
- Table Index
- Figure Index
- 1Introduction
- 2Product Concept
- 3Application Interfaces
- 3.1.General Description
- 3.2.Pin Assignment
- 3.3.Pin Description
- 3.4.Power Supply
- 3.5.Turn on and off Scenarios
- 3.6.VRTC Interface
- 3.7.Power Output
- 3.8.Battery Charge and Management
- 3.9.USB Interface
- 3.10.UART Interfaces
- 3.11.(U)SIM Interfaces
- 3.12.SD Card Interface
- 3.13.GPIO Interfaces
- 3.14.I2C Interfaces
- 3.15.ADC Interfaces
- 3.16.Motor Drive Interface
- 3.17.LCM Interface
- 3.18.Touch Panel Interface
- 3.19.Camera Interfaces
- 3.20.Sensor Interfaces
- 3.21.Audio Interfaces
- 3.22.Emergency Download Interface
- 4Wi-Fi and BT
- 5GNSS
- 6Antenna Interface
- 7Electrical, Reliability and Radio Characteristics
- 8Mechanical Dimensions
- 9Storage, Manufacturing and Packaging
- 10Appendix A References
- 11Appendix B GPRS Coding Schemes
- 12Appendix C GPRS Multi-slot Classes
- 13Appendix D EDGE Modulation and Coding Schemes
Smart LTE Module Series
SC20 Hardware Design
SC20_Hardware_Design Confidential / Released
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Contents
About the Document..................................................................................................................................................2
Contents........................................................................................................................................................................3
Table Index................................................................................................................................................................... 6
Figure Index................................................................................................................................................................. 8
1 Introduction....................................................................................................................................................... 10
1.1. Safety Information.................................................................................................................................10
2 Product Concept...............................................................................................................................................13
2.1. General Description..............................................................................................................................13
2.2. Key Features......................................................................................................................................... 16
2.3. Functional Diagram.............................................................................................................................. 19
2.4. Evaluation Board...................................................................................................................................20
3 Application Interfaces.....................................................................................................................................21
3.1. General Description..............................................................................................................................21
3.2. Pin Assignment..................................................................................................................................... 22
3.3. Pin Description......................................................................................................................................23
3.4. Power Supply........................................................................................................................................ 34
3.4.1. Power Supply Pins.....................................................................................................................34
3.4.2. Decrease Voltage Drop.............................................................................................................34
3.4.3. Reference Design for Power Supply.......................................................................................35
3.5. Turn on and off Scenarios...................................................................................................................36
3.5.1. Turn on Module Using the PWRKEY......................................................................................36
3.5.2. Turn off Module...........................................................................................................................38
3.6. VRTC Interface......................................................................................................................................38
3.7. Power Output.........................................................................................................................................39
3.8. Battery Charge and Management......................................................................................................40
3.9. USB Interface........................................................................................................................................ 41
3.10. UART Interfaces....................................................................................................................................43
3.11. (U)SIM Interfaces..................................................................................................................................45
3.12. SD Card Interface.................................................................................................................................47
3.13. GPIO Interfaces.................................................................................................................................... 49
3.14. I2C Interfaces........................................................................................................................................ 51
3.15. ADC Interfaces......................................................................................................................................52
3.16. Motor Drive Interface............................................................................................................................52
3.17. LCM Interface........................................................................................................................................53
3.18. Touch Panel Interface.......................................................................................................................... 55
3.19. Camera Interfaces................................................................................................................................56
3.19.1. Rear Camera Interface..............................................................................................................56
3.19.2. Front Camera Interface.............................................................................................................58
3.19.3. Design Considerations.............................................................................................................. 60
3.20. Sensor Interfaces..................................................................................................................................61