Quectel EG915U-EU - Page 8

LTE Standard Module Series
EG915U-EU_Hardware_Design 7 / 81
Table Index
Table 1: Special Mark ................................................................................................................................. 10
Table 2: Brief Introduction of the Module ....................................................................................................11
Table 3: Wireless Network Type ................................................................................................................. 12
Table 4: Key Features ................................................................................................................................ 13
Table 5: I/O Parameters Definition ............................................................................................................. 17
Table 6: Pin Description ............................................................................................................................. 17
Table 7: Overview of Operating Modes ...................................................................................................... 26
Table 8: Pin Definition of Power Supply ..................................................................................................... 30
Table 9: Pin Definition of PWRKEY ............................................................................................................ 33
Table 10: Pin Definition of RESET ............................................................................................................. 36
Table 11: Pin Definition of Audio Interfaces ................................................................................................ 38
Table 12: Functions of the USB Interface .................................................................................................. 40
Table 13: Pin Definition of USB Interface ................................................................................................... 41
Table 14: Pin Definition of (U)SIM Interface ............................................................................................... 43
Table 15: Pin Definition of I2C Interface..................................................................................................... 45
Table 16: Pin Definition of UART Interface ................................................................................................ 46
Table 17: Pin Definition of ADC Interface ................................................................................................... 49
Table 18: Characteristics of ADC Interface ................................................................................................ 49
Table 19: Pin Definition of SPI Interface .................................................................................................... 50
Table 20: Pin Definition of Control Signal .................................................................................................. 50
Table 21: Pin Definition of Indication Signal ............................................................................................... 51
Table 22: Working State of the Network Connection Status/Activity Indication ......................................... 51
Table 23: Behaviors of the MAIN_RI .......................................................................................................... 53
Table 24: Pin Definition of Cellular Network Interface ............................................................................... 54
Table 25: Operating Frequency of EG915U-EU ........................................................................................ 54
Table 26: Tx Power ..................................................................................................................................... 55
Table 27: Conducted RF Receiving Sensitivity of EG915U-EU ................................................................. 55
Table 28: Pin Definition of GRFC Interfaces .............................................................................................. 57
Table 29: Logic Levels of GRFC Interfaces ............................................................................................... 57
Table 30: Truth Table of GRFC Interfaces .................................................................................................. 57
Table 31: Requirements for Antenna Design ............................................................................................. 60
Table 32: Absolute Maximum Ratings ........................................................................................................ 62
Table 33: The Module’s Power Supply Ratings ......................................................................................... 63
Table 34: The Module Power Consumption ............................................................................................... 63
Table 35: The Module GNSS Current Consumption .................................................................................. 64
Table 36: Electrostatics Discharge Characteristics (25 °C, 45 % Relative Humidity) ............................... 64
Table 37: Operating and Storage Temperatures ........................................................................................ 65
Table 38: Recommended Thermal Profile Parameters .............................................................................. 72
Table 39: Related Documents .................................................................................................................... 76
Table 40: Terms and Abbreviations ............................................................................................................ 76