Table Of Contents; Contents - Quectel NB-IoT Module Series Hardware Design

Contents

About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 5
Figure Index ................................................................................................................................................. 6
1 Introduction .......................................................................................................................................... 7
1.1. Safety Information...................................................................................................................... 8
2 Product Concept .................................................................................................................................. 9
2.1. General Description ................................................................................................................... 9
2.2. Key Features ........................................................................................................................... 10
2.3. Functional Diagram ................................................................................................................. 11
2.4. Development Board ................................................................................................................. 12
3 Application Interfaces ....................................................................................................................... 13
3.1. General Description ................................................................................................................. 13
3.2. Pin Assignment ........................................................................................................................ 14
3.3. Pin Description ......................................................................................................................... 15
3.4. Operating Modes ..................................................................................................................... 18
3.5. Power Saving Mode (PSM) ..................................................................................................... 19
3.6. Power Supply ........................................................................................................................... 20
3.6.1. Power Supply Pins ......................................................................................................... 20
3.6.2. Reference Design for Power Supply .............................................................................. 20
3.7. Turn on and off Scenarios ....................................................................................................... 21
3.7.1. Turn on ........................................................................................................................... 21
3.7.2. Turn off ........................................................................................................................... 22
3.7.3. Reset the Module ........................................................................................................... 23
3.8. UART Interfaces ...................................................................................................................... 24
3.8.1. Main UART Port ............................................................................................................. 25
3.8.2. Debug UART Port .......................................................................................................... 26
3.8.3. Auxiliary UART Port ....................................................................................................... 26
3.8.4. UART Application ........................................................................................................... 27
3.9. SPI Interface ............................................................................................................................ 29
3.10. USIM Interface ......................................................................................................................... 30
3.11. ADC Interface* ......................................................................................................................... 31
3.12. RI Behaviors* ........................................................................................................................... 31
3.13. Network Status Indication* ....................................................................................................... 32
4 Antenna Interface ............................................................................................................................... 33
4.1. Antenna Interface .................................................................................................................... 33
4.1.1. Reference Design .......................................................................................................... 33
4.1.2. Antenna Requirements .................................................................................................. 34
4.1.3. Reference Design of RF Layout..................................................................................... 34
BC66_Hardware_Design
NB-IoT Module Series
BC66 Hardware Design
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