Product Info

NB-IoT Module Series
BC660K-GL Hardware Design
BC660K-GL_Hardware_Design
4
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Contents
About the Document.................................................................................................................................................3
Contents....................................................................................................................................................................... 4
Table Index.................................................................................................................................................................. 6
Figure Index.................................................................................................................................................................7
1 Introduction......................................................................................................................................................... 8
1.1. Safety Information....................................................................................................................................9
2 Product Concept..............................................................................................................................................10
2.1. General Description...............................................................................................................................10
2.2. Key Features.......................................................................................................................................... 11
2.3. Functional Diagram............................................................................................................................... 12
2.4. Evaluation Board....................................................................................................................................13
3 Application Interfaces.................................................................................................................................... 14
3.1. Pin Assignment...................................................................................................................................... 15
3.2. Pin Description....................................................................................................................................... 16
3.3. Operating Modes................................................................................................................................... 20
3.4. Power Saving......................................................................................................................................... 21
3.4.1. Light Sleep..................................................................................................................................21
3.4.2. Deep Sleep.................................................................................................................................21
3.5. Power Supply......................................................................................................................................... 22
3.5.1. Power Supply Pins....................................................................................................................22
3.5.2. Reference Design for Power Supply......................................................................................23
3.5.3. Power Supply Voltage Detection*.......................................................................................... 23
3.6. Power-up/Power-down Scenarios...................................................................................................... 24
3.6.1. Power-up.................................................................................................................................... 24
3.6.2. Power-down............................................................................................................................... 25
3.6.3. Reset........................................................................................................................................... 25
3.6.4. Download....................................................................................................................................26
3.7. UART Interfaces.................................................................................................................................... 27
3.7.1. Main UART Port........................................................................................................................ 28
3.7.2. Debug UART Port..................................................................................................................... 28
3.7.3. UART Application......................................................................................................................29
3.8. (U)SIM Interface.....................................................................................................................................31
3.9. ADC Interface*....................................................................................................................................... 33
3.10. RI Interface*............................................................................................................................................33
3.11. NETLIGHT Interface*............................................................................................................................34
4 Antenna Interface............................................................................................................................................ 36
4.1. Pin Definition.......................................................................................................................................... 36
4.2. Operating Frequencies......................................................................................................................... 36
4.3. RF Antenna Reference Design........................................................................................................... 37