Quectel BG96, Руководство пользователя

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LPWA Module Series
BG96 Hardware Design
BG96_Hardware_Design 8 / 79
Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 14
FIGURE 2: PIN ASSIGNMENT (TOP VIEW)..................................................................................................... 17
FIGURE 3: SLEEP MODE APPLICATION VIA UART ....................................................................................... 27
FIGURE 4: POWER SUPPLY LIMITS DURING BURST TRANSMISSION ...................................................... 29
FIGURE 5: STAR STRUCTURE OF THE POWER SUPPLY............................................................................ 29
FIGURE 6: TURN ON THE MODULE USING DRIVING CIRCUIT ................................................................... 30
FIGURE 7: TURN ON THE MODULE USING KEYSTROKE ........................................................................... 31
FIGURE 8: POWER-ON TIMING ...................................................................................................................... 31
FIGURE 9: POWER-OFF TIMING .................................................................................................................... 32
FIGURE 10: REFERENCE CIRCUIT OF RESET_N BY USING DRIVING CIRCUIT ...................................... 33
FIGURE 11: REFERENCE CIRCUIT OF RESET_N BY USING BUTTON ....................................................... 33
FIGURE 12: TIMING OF RESETTING MODULE ............................................................................................. 34
FIGURE 13: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR
................................................................................................................................................................... 35
FIGURE 14: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR . 35
FIGURE 15: REFERENCE CIRCUIT OF USB INTERFACE ............................................................................ 37
FIGURE 16: REFERENCE CIRCUIT WITH TRANSLATOR CHIP ................................................................... 40
FIGURE 17: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT .............................................................. 40
FIGURE 18: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 41
FIGURE 19: REFERENCE CIRCUIT OF NETLIGHT ....................................................................................... 42
FIGURE 20: REFERENCE CIRCUIT OF STATUS ........................................................................................... 43
FIGURE 21: REFERENCE CIRCUIT OF USB_BOOT INTERFACE ................................................................ 44
FIGURE 22: REFERENCE CIRCUIT OF RF ANTENNA INTERFACE ............................................................. 50
FIGURE 23: MICROSTRIP DESIGN ON A 2-LAYER PCB ............................................................................... 51
FIGURE 24: COPLANAR WAVEGUIDE DESIGN ON A 2-LAYER PCB ........................................................... 51
FIGURE 25: COPLANAR WAVEGUIDE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE GROUND)
................................................................................................................................................................... 51
FIGURE 26: COPLANAR WAVEGUIDE DESIGN ON A 4-LAYER PCB (LAYER 4 AS REFERENCE GROUND)
................................................................................................................................................................... 52
FIGURE 27: REFERENCE CIRCUIT OF GNSS ANTENNA INTERFACE ........................................................ 53
FIGURE 28: DIMENSIONS OF THE U.FL-R-SMT CONNECTOR (UNIT: MM) ................................................ 55
FIGURE 29: MECHANICALS OF U.FL-LP CONNECTORS ............................................................................. 55
FIGURE 30: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 56
FIGURE 31: MODULE TOP AND SIDE DIMENSIONS ..................................................................................... 65
FIGURE 32: MODULE BOTTOM DIMENSIONS (BOTTOM VIEW) ................................................................. 66
FIGURE 33: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 67
FIGURE 34: TOP VIEW OF THE MODULE ...................................................................................................... 68
FIGURE 35: BOTTOM VIEW OF THE MODULE .............................................................................................. 68
FIGURE 36: RECOMMENDED REFLOW SOLDERING THERMAL PROFILE ................................................ 70
FIGURE 37: TAPE DIMENSIONS ..................................................................................................................... 71
FIGURE 38: REEL DIMENSIONS ..................................................................................................................... 72