Quectel LTE-A Series Hardware Design page 5

3.11. SPI Interface* ........................................................................................................................... 53
3.12. PCM and I2C Interfaces .......................................................................................................... 55
3.13. ADC Interfaces ........................................................................................................................ 57
3.14. Network Status Indication ........................................................................................................ 58
3.15. Operation Status Indication ..................................................................................................... 60
3.16. RI Behaviors ............................................................................................................................ 60
3.17. PCIe Interface* ........................................................................................................................ 61
3.17.1. Root Complex Mode ...................................................................................................... 63
3.17.2. Endpoint Mode ............................................................................................................... 64
3.18. SDIO Interface* ........................................................................................................................ 65
3.19. Antenna Tuner Control Interfaces* .......................................................................................... 67
3.20. USB_BOOT Interface .............................................................................................................. 68
3.21. GPIOs ...................................................................................................................................... 69
4 GNSS Receiver ................................................................................................................................... 70
4.1. General Description ................................................................................................................. 70
4.2. GNSS Performance ................................................................................................................. 70
4.3. Layout Guidelines .................................................................................................................... 71
5 Antenna Interfaces ............................................................................................................................. 72
5.1. Main/Rx-diversity/MIMO Antenna Interfaces ........................................................................... 72
5.1.1. Pin Definition .................................................................................................................. 72
5.1.2. Operating Frequencies................................................................................................... 72
5.1.3. Reference Design of RF Antenna Interfaces ................................................................. 74
5.2. GNSS Antenna Interface ......................................................................................................... 75
5.2.1. Pin Definition .................................................................................................................. 75
5.2.2. GNSS Frequency ........................................................................................................... 75
5.2.3. Reference Design of GNSS Antenna Interface ............................................................. 76
5.3. Reference Design of RF Layout .............................................................................................. 77
5.4. Antenna Installation ................................................................................................................. 78
5.4.1. Antenna Requirements .................................................................................................. 78
5.4.2. Recommended RF Connector for Antenna Installation ................................................. 79
6 Electrical, Reliability and Radio Characteristics ............................................................................ 81
6.1. Absolute Maximum Ratings ..................................................................................................... 81
6.2. Power Supply Ratings ............................................................................................................. 82
6.3. Operation and Storage Temperatures .................................................................................... 82
6.4. Current Consumption .............................................................................................................. 83
6.4.1. EG18-EA Current Consumption..................................................................................... 83
6.4.2. EG18-NA Current Consumption .................................................................................... 85
6.5. RF Output Power ..................................................................................................................... 87
6.6. RF Receiving Sensitivity .......................................................................................................... 87
6.6.1. EG18-EA Receiving Sensitivity ...................................................................................... 87
6.6.2. EG18-NA Receiving Sensitivity ...................................................................................... 88
6.7. Electrostatic Discharge ............................................................................................................ 89
6.8. Thermal Considerations .......................................................................................................... 89
EG18_Hardware_Design
LTE-A Module Series
EG18 Hardware Design
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