User's Manual

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LTE Module
EC25-A User Manual
EC25-A_User_Manual Confidential / Released 5 / 7
Table Index
TABLE 1: EC25 SERIES FREQUENCY BANDS ........................................................................................ 9
TABLE 2: EC25 KEY FEATURES .............................................................................................................. 10
TABLE 3: IO PARAMETERS DEFINITION ................................................................................................ 16
TABLE 4: PIN DESCRIPTION ................................................................................................................... 16
TABLE 5: OVERVIEW OF OPERATING MODES ..................................................................................... 21
TABLE 6: VBAT AND GND PINS ............................................................................................................... 26
TABLE 7: PWRKEY PIN DESCRIPTION ................................................................................................... 28
TABLE 8: RESET_N PIN DESCRIPTION .................................................................................................. 31
TABLE 9: PIN DEFINITION OF THE USIM INTERFACE .......................................................................... 32
TABLE 10: USB PIN DESCRIPTION ......................................................................................................... 34
TABLE 11: PIN DEFINITION OF THE MAIN UART INTERFACE ............................................................. 36
TABLE 12: PIN DEFINITION OF THE DEBUG UART INTERFACE ......................................................... 36
TABLE 13: LOGIC LEVELS OF DIGITAL I/O............................................................................................. 37
TABLE 14: PIN DEFINITION OF PCM AND I2C INTERFACE .................................................................. 39
TABLE 15: PIN DEFINITION OF THE ADC ............................................................................................... 41
TABLE 16: CHARACTERISTIC OF THE ADC ........................................................................................... 41
TABLE 17: PIN DEFINITION OF NETWORK INDICATOR ....................................................................... 41
TABLE 18: WORKING STATE OF THE NETWORK INDICATOR ............................................................. 42
TABLE 19: PIN DEFINITION OF STATUS ................................................................................................. 43
TABLE 20: BEHAVIOR OF THE RI ............................................................................................................ 44
TABLE 21: GNSS PERFORMANCE .......................................................................................................... 45
TABLE 22: PIN DEFINITION OF THE RF ANTENNA ............................................................................... 47
TABLE 23: THE MODULE OPERATING FREQUENCIES ........................................................................ 47
TABLE 24: PIN DEFINITION OF GNSS ANTENNA .................................................................................. 49
TABLE 25: GNSS FREQUENCY ............................................................................................................... 49
TABLE 26: ANTENNA REQUIREMENTS .................................................................................................. 50
TABLE 27: ABSOLUTE MAXIMUM RATINGS ........................................................................................... 53
TABLE 28: THE MODULE POWER SUPPLY RATINGS ........................................................................... 53
TABLE 29: OPERATING TEMPERATURE ................................................................................................ 54
TABLE 30: CONDUCTED RF OUTPUT POWER...................................................................................... 55
TABLE 31: ELECTROSTATICS DISCHARGE CHARACTERISTICS ....................................................... 56
TABLE 32: RELATED DOCUMENTS ........................................................................................................ 64
TABLE 33: TERMS AND ABBREVIATIONS .............................................................................................. 64
TABLE 34: DESCRIPTION OF DIFFERENT CODING SCHEMES .......................................................... 68
TABLE 35: GPRS MULTI-SLOT CLASSES ............................................................................................... 69
TABLE 36: EDGE MODULATION AND CODING SCHEME ..................................................................... 70