Table Of Contents; Contents - Quectel QuecOpen AG521R-NA Hardware Design

Contents

About the Document ................................................................................................................................................... 3
Contents ....................................................................................................................................................................... 4
Table Index .................................................................................................................................................................. 6
Figure Index ................................................................................................................................................................ 8
1
Introduction ...................................................................................................................................................... 10
1.1.
Safety Information .................................................................................................................................. 12
2
Product Concept ............................................................................................................................................... 14
2.1. General Description ................................................................................................................................ 14
2.2. Key Features ........................................................................................................................................... 15
2.3. Functional Diagram ................................................................................................................................ 17
2.4. Evaluation Board .................................................................................................................................... 18
3
Application Interfaces ...................................................................................................................................... 19
3.1.
General Description ................................................................................................................................ 19
3.2. Pin Assignment ....................................................................................................................................... 20
3.3. Pin Description ....................................................................................................................................... 21
3.4. Operating Modes .................................................................................................................................... 37
3.5. Power Saving .......................................................................................................................................... 37
3.5.1. Sleep Mode ................................................................................................................................. 37
3.5.1.1.
3.5.1.2.
3.5.1.3.
3.5.2. Airplane Mode ............................................................................................................................ 40
3.6.
Power Supply .......................................................................................................................................... 40
3.6.1. Power Supply Pins ...................................................................................................................... 40
3.6.2. Decrease Voltage Drop................................................................................................................ 41
3.6.3. Reference Design for Power Supply ........................................................................................... 42
3.6.4. Monitor the Power Supply .......................................................................................................... 42
3.7.
Power on and off Scenarios .................................................................................................................... 42
3.7.1. Turn on Module with PWRKEY ................................................................................................ 42
3.7.2. Turn on Module with PON_1 ..................................................................................................... 44
3.7.3. Turn off Module .......................................................................................................................... 45
3.7.3.1.
3.7.3.2.
3.8. Reset the Module .................................................................................................................................... 46
3.9.
(U)SIM Interfaces ................................................................................................................................... 48
3.10. USB Interfaces ........................................................................................................................................ 50
3.11. UART Interfaces ..................................................................................................................................... 52
3.12. I2S and I2C Interfaces ............................................................................................................................ 54
AG521R-NA_QuecOpen_Hardware_Design
USB Application with USB Remote Wakeup Function .................................................. 38
USB Application without USB Remote Wakeup Function ............................................. 38
USB Application without USB Suspend Function.......................................................... 39
Turn off Module Using PWRKEY ................................................................................. 45
Turn off Module Using API Interface ............................................................................. 46
Automotive Module Series
AG521R-NA QuecOpen Hardware Design
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