Product Info

Smart LTE Module Series
SC66 Hardware Design
SC66_Hardware_Design 4 / 118
3.19. Touch Panel Interfaces ............................................................................................................. 71
3.20. Camera Interfaces..................................................................................................................... 73
3.20.1. Design Considerations ................................................................................................... 79
3.21. Sensor Interfaces ...................................................................................................................... 81
3.22. Audio Interfaces ........................................................................................................................ 82
3.22.1. Reference Circuit Design for Microphone Interfaces ..................................................... 83
3.22.2. Reference Circuit Design for Earpiece Interface ........................................................... 84
3.22.3. Reference Circuit Design for Headphone Interface ....................................................... 85
3.22.4. Reference Circuit Design for Loudspeaker Interface..................................................... 85
3.22.5. Audio Interfaces Design Considerations........................................................................ 85
3.23. Emergency Download Interface ................................................................................................ 86
4 Wi-Fi and BT ....................................................................................................................................... 87
4.1. Wi-Fi Overview .......................................................................................................................... 87
4.1.1. Wi-Fi Performance ......................................................................................................... 87
4.2. BT Overview .............................................................................................................................. 89
4.2.1. BT Performance ............................................................................................................. 90
5 GNSS ................................................................................................................................................... 91
5.1. GNSS Performance .................................................................................................................. 91
5.2. GNSS RF Design Guidelines .................................................................................................... 92
6 Antenna Interfaces ............................................................................................................................. 93
6.1. Main/Rx-diversity Antenna Interfaces ....................................................................................... 93
6.1.1. Main and Rx-diversity Antenna Interfaces Reference Design ....................................... 97
6.1.2. Reference Design of RF Layout..................................................................................... 97
6.2. Wi-Fi/BT Antenna Interface ....................................................................................................... 99
6.3. GNSS Antenna Interface ......................................................................................................... 100
6.3.1. Recommended Circuit for Passive Antenna ................................................................ 101
6.3.2. Recommended Circuit for Active Antenna ................................................................... 102
6.4. Antenna Installation ................................................................................................................. 102
6.4.1. Antenna Requirements ................................................................................................ 102
6.4.2. Recommended RF Connector for Antenna Installation ............................................... 103
7 Electrical, Reliability and Radio Characteristics .......................................................................... 105
7.1. Absolute Maximum Ratings .................................................................................................... 105
7.2. Power Supply Ratings ............................................................................................................. 105
7.3. Operation and Storage Temperatures ..................................................................................... 106
7.4. Current Consumption .............................................................................................................. 107
7.5. RF Output Power .................................................................................................................... 116
7.6. RF Receiving Sensitivity ......................................................................................................... 119
7.7. Electrostatic Discharge ........................................................................................................... 123
8 Mechanical Dimensions .................................................................................................................. 124
8.1. Mechanical Dimensions of the Module ................................................................................... 124
8.2. Recommended Footprint ........................................................................................................ 126
8.3. Top and Bottom View of the Module ....................................................................................... 127