Quectel BG77 - About the Document

LPWA Module Series
BG77 Hardware Design
BG77_Hardware_Design 5 / 76
Table Index
TABLE 1: FREQUENCY BANDS AND GNSS TYPES OF BG77 MODULE ..................................................... 11
TABLE 2: KEY FEATURES OF BG77 MODULE .............................................................................................. 12
TABLE 3: DEFINITION OF I/O PARAMETERS ................................................................................................ 17
TABLE 4: PIN DESCRIPTION ........................................................................................................................... 17
TABLE 5: OVERVIEW OF OPERATING MODES ............................................................................................ 25
TABLE 6: VBAT AND GND PINS ...................................................................................................................... 28
TABLE 7: PIN DEFINITION OF PWRKEY ........................................................................................................ 30
TABLE 8: PIN DEFINITION OF RESET_N ....................................................................................................... 33
TABLE 9: PIN DEFINITION OF PON_TRIG INTERFACE ................................................................................ 34
TABLE 10: PIN DEFINITION OF (U)SIM INTERFACE ..................................................................................... 35
TABLE 11: PIN DEFINITION OF USB INTERFACE ......................................................................................... 37
TABLE 12: PIN DEFINITION OF MAIN UART INTERFACE ............................................................................ 40
TABLE 13: PIN DEFINITION OF DEBUG UART INTERFACE......................................................................... 40
TABLE 14: PIN DEFINITION OF GNSS UART INTERFACE ........................................................................... 40
TABLE 15: LOGIC LEVELS OF DIGITAL I/O ................................................................................................... 41
TABLE 16: PIN DEFINITION OF PCM AND I2C INTERFACES ...................................................................... 42
TABLE 17: PIN DEFINITION OF NETLIGHT .................................................................................................... 43
TABLE 18: WORKING STATE OF NETLIGHT ................................................................................................. 43
TABLE 19: PIN DEFINITION OF STATUS ....................................................................................................... 44
TABLE 20: DEFAULT BEHAVIORS OF RI ....................................................................................................... 45
TABLE 21: PIN DEFINITION OF USB_BOOT INTERFACE............................................................................. 46
TABLE 22: PIN DEFINITION OF ADC INTERFACES ...................................................................................... 47
TABLE 23: CHARACTERISTICS OF ADC INTERFACES ................................................................................ 47
TABLE 24: PIN DEFINITION OF SPI INTERFACE .......................................................................................... 48
TABLE 25: PIN DEFINITION OF GPIO INTERFACES ..................................................................................... 48
TABLE 26: LOGIC LEVELS OF GPIO INTERFACES ...................................................................................... 48
TABLE 27: PIN DEFINITION OF GRFC INTERFACES .................................................................................... 49
TABLE 28: LOGIC LEVELS OF GRFC INTERFACES ..................................................................................... 49
TABLE 29: GNSS PERFORMANCE ................................................................................................................. 50
TABLE 30: PIN DEFINITION OF MAIN ANTENNA INTERFACE ..................................................................... 52
TABLE 31: BG77 OPERATING FREQUENCY ................................................................................................. 52
TABLE 32: PIN DEFINITION OF GNSS ANTENNA INTERFACE .................................................................... 56
TABLE 33: GNSS FREQUENCY ...................................................................................................................... 56
TABLE 34: ANTENNA REQUIREMENTS ......................................................................................................... 57
TABLE 35: ABSOLUTE MAXIMUM RATINGS ................................................................................................. 60
TABLE 36: POWER SUPPLY RATINGS .......................................................................................................... 60
TABLE 37: OPERATION AND STORAGE TEMPERATURES ......................................................................... 61
TABLE 38: BG77 CURRENT CONSUMPTION ................................................................................................ 61
TABLE 39: BG77 RF OUTPUT POWER ........................................................................................................... 64
TABLE 40: BG77 CONDUCTED RF RECEIVING SENSITIVITY ..................................................................... 64
TABLE 41: ELECTROSTATIC DISCHARGE CHARACTERISTICS (25ºC, 45% RELATIVE HUMIDITY) ....... 65