Quectel BC66 Hardware Design

NB-IoT Module Series
BC66 Hardware Design
BC66_Hardware_Design 3 / 59
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. Deep Sleep ............................................................................................................................... 19
3.6. Power Supply ............................................................................................................................ 21
3.6.1. Power Supply Pins ......................................................................................................... 21
3.6.2. Reference Design for Power Supply .............................................................................. 21
3.7. Turn on/off Scenarios ................................................................................................................ 22
3.7.1. Turn on ........................................................................................................................... 22
3.7.2. Turn off ........................................................................................................................... 24
3.7.3. Reset .............................................................................................................................. 25
3.8. USB Interface ............................................................................................................................ 26
3.9. UART Interfaces ........................................................................................................................ 27
3.9.1. Main UART Port ............................................................................................................. 28
3.9.2. Debug UART Port .......................................................................................................... 29
3.9.3. Auxiliary UART Port ....................................................................................................... 29
3.9.4. UART Application ........................................................................................................... 30
3.10. USIM Interface .......................................................................................................................... 32
3.11. ADC Interface ............................................................................................................................ 34
3.12. RI Interface ................................................................................................................................ 34
3.13. NETLIGHT Interface ................................................................................................................. 35
4 Antenna Interface ............................................................................................................................... 36
4.1. Pin Definition ............................................................................................................................. 36
4.2. Operating Frequencies ............................................................................................................. 36
4.3. RF Antenna Reference Design ................................................................................................. 37
4.4. Reference Design of RF Layout ............................................................................................... 38

Quectel BC66 Specifications

General

Brand	Quectel
Model	BC66
Category	GSM/GPRS Modules
Language	English