Table Of Contents; Contents - Quectel EM12-G Hardware Design

Contents

About the Document ................................................................................................................................... 2
Contents ....................................................................................................................................................... 3
Table Index ................................................................................................................................................... 5
Figure Index ................................................................................................................................................. 6
1
Introduction .......................................................................................................................................... 7
1.1. Safety Information ..................................................................................................................... 10
2
Product Concept ................................................................................................................................ 11
2.1. General Description .................................................................................................................. 11
2.2. Key Features ............................................................................................................................. 13
2.3. Functional Diagram ................................................................................................................... 15
2.4. Evaluation Board ....................................................................................................................... 15
3
Application Interfaces ....................................................................................................................... 16
3.1. Pin Assignment ......................................................................................................................... 17
3.2. Pin Description .......................................................................................................................... 18
3.3. Power Supply ............................................................................................................................ 22
3.3.1. Decrease Voltage Drop .................................................................................................. 22
3.3.2. Reference Design for Power Supply .............................................................................. 23
3.4. Turn on and off Scenarios ......................................................................................................... 24
3.4.1. Turn on the Module ........................................................................................................ 24
3.4.1.1.
3.4.1.2.
3.4.2. Turn off the Module ........................................................................................................ 26
3.4.2.1.
3.4.2.2.
3.5. Reset the Module ...................................................................................................................... 27
3.6. (U)SIM Interfaces ...................................................................................................................... 28
3.7. USB Interface ............................................................................................................................ 32
3.8. PCIE Interface ........................................................................................................................... 34
3.9. PCM and I2C Interfaces ............................................................................................................ 34
3.10. Control and Indicator Signals .................................................................................................... 36
3.10.1. W_DISABLE1# Signal.................................................................................................... 37
3.10.2. WWAN_LED# Signal ..................................................................................................... 38
3.10.3. WAKE_ON_WAN# Signal .............................................................................................. 38
3.10.4. DPR Signal ..................................................................................................................... 39
3.11. Tunable Antenna Control Interface* .......................................................................................... 40
3.12. Configuration Pins ..................................................................................................................... 40
4
GNSS Receiver ................................................................................................................................... 42
4.1. General Description .................................................................................................................. 42
EM12-G_Hardware_Design
Turn on the Module Through GPIO Controlled FULL_CARD_POWER_OFF# . 25
Turn on the Module Automatically ....................................................................... 25
Turn off the Module Through FULL_CARD_POWER_OFF# ............................. 26
Turn off the Module via AT Command ................................................................. 27
LTE-A Module Series
EM12-G Hardware Design
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