Quectel Smart Wi-Fi Module Series, Руководство пользователя

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SC20-W_Manual_R1.0 Confidential / Released 3 / 41
Contents
About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
1
Introduction .......................................................................................................................................... 5
1.1. Safety Information...................................................................................................................... 5
2
Product Concept .................................................................................................................................. 7
2.1. General Description ................................................................................................................... 7
2.2. Key Features ............................................................................................................................. 8
2.3. Functional Diagram ................................................................................................................. 10
2.4. Evaluation Board ..................................................................................................................... 11
3
Application Interfaces ....................................................................................................................... 12
3.1. General Description ................................................................................................................. 12
3.2. Pin Assignment ........................................................................................................................ 13
3.3. Power Supply ........................................................................................................................... 14
3.4. Turn on and off Scenarios ....................................................................................................... 14
3.4.1. Turn on Module Using the PWRKEY ............................................................................. 14
3.4.2. Turn off Module .............................................................................................................. 15
3.5. VRTC Interface ........................................................................................................................ 16
3.6. Power Output ........................................................................................................................... 17
3.7. Battery Charge and Management ........................................................................................... 17
3.8. USB Interface .......................................................................................................................... 18
4
Wi-Fi and BT ....................................................................................................................................... 19
4.1. Wi-Fi Overview ........................................................................................................................ 19
4.2. BT Overview ............................................................................................................................ 19
5
Antenna Interface ............................................................................................................................... 21
5.1. Wi-Fi/BT Antenna Interface ..................................................................................................... 21
5.1.1. Reference Design of RF Layout..................................................................................... 22
5.2. Antenna Installation ................................................................................................................. 24
5.2.1. Antenna Requirements .................................................................................................. 24
5.2.2. Recommended RF Connector for Antenna Installation ................................................. 24
6
Electrical, Reliability and Radio Characteristics ............................................................................ 27
6.1. Absolute Maximum Ratings ..................................................................................................... 27
6.2. Power Supply Ratings ............................................................................................................. 27
6.3. Charging Performance Specifications ..................................................................................... 28
6.4. Operating Temperature ............................................................................................................ 28
6.5. Current Consumption .............................................................................................................. 29
6.6. Electrostatic Discharge ............................................................................................................ 30
7
Mechanical Dimensions .................................................................................................................... 31