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LTE Module Series
BG96 Hardware Design
BG96_Hardware_Design 8 / 81
Figure Index
FIGURE 1: FUNCTIONAL DIAGRAM ............................................................................................................... 18
FIGURE 2: PIN ASSIGNMENT (TOP VIEW) .................................................................................................... 22
FIGURE 3: SLEEP MODE APPLICATION VIA UART ....................................................................................... 34
FIGURE 4: POWER SUPPLY LIMITS DURING BURST TRANSMISSION ...................................................... 36
FIGURE 5: STAR STRUCTURE OF THE POWER SUPPLY ............................................................................ 37
FIGURE 6: TURN ON THE MODULE USING DRIVING CIRCUIT ................................................................... 38
FIGURE 7: TURN ON THE MODULE USING KEYSTROKE ........................................................................... 38
FIGURE 8: TIMING OF TURNING ON MODULE ............................................................................................. 39
FIGURE 9: TIMING OF TURNING OFF MODULE ........................................................................................... 40
FIGURE 10: REFERENCE CIRCUIT OF RESET_N BY USING DRIVING CIRCUIT ...................................... 41
FIGURE 11: REFERENCE CIRCUIT OF RESET_N BY USING BUTTON ....................................................... 41
FIGURE 12: TIMING OF RESETTING MODULE ............................................................................................. 42
FIGURE 13: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH AN 8-PIN (U)SIM CARD CONNECTOR
................................................................................................................................................................... 43

FIGURE 14: REFERENCE CIRCUIT OF (U)SIM INTERFACE WITH A 6-PIN (U)SIM CARD CONNECTOR . 44
FIGURE 15: REFERENCE CIRCUIT OF USB INTERFACE ............................................................................ 45
FIGURE 16: REFERENCE CIRCUIT WITH TRANSLATOR CHIP ................................................................... 48
FIGURE 17: REFERENCE CIRCUIT WITH TRANSISTOR CIRCUIT .............................................................. 49
FIGURE 18: REFERENCE CIRCUIT OF PCM APPLICATION WITH AUDIO CODEC .................................... 50
FIGURE 19: REFERENCE CIRCUIT OF THE NETWORK STATUS INDICATOR ........................................... 51
FIGURE 20: REFERENCE CIRCUIT OF STATUS ........................................................................................... 52
FIGURE 21: REFERENCE CIRCUIT OF USB_BOOT INTERFACE ................................................................ 54
FIGURE 22: REFERENCE CIRCUIT OF RF ANTENNA INTERFACE ............................................................. 61
FIGURE 23: MICROSTRIP LINE DESIGN ON A 2-LAYER PCB ...................................................................... 62
FIGURE 24: COPLANAR WAVEGUIDE LINE DESIGN ON A 2-LAYER PCB .................................................. 62
FIGURE 25: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 3 AS REFERENCE
GROUND) .................................................................................................................................................. 63

FIGURE 26: COPLANAR WAVEGUIDE LINE DESIGN ON A 4-LAYER PCB (LAYER 4 AS REFERENCE
GROUND) .................................................................................................................................................. 63

FIGURE 27: REFERENCE CIRCUIT OF GNSS ANTENNA INTERFACE ........................................................ 65
FIGURE 28: DIMENSIONS OF THE U.FL-R-SMT CONNECTOR (UNIT: MM) ................................................ 67
FIGURE 29: MECHANICALS OF U.FL-LP CONNECTORS ............................................................................. 67
FIGURE 30: SPACE FACTOR OF MATED CONNECTOR (UNIT: MM) ........................................................... 68
FIGURE 31: MODULE TOP AND SIDE DIMENSIONS ..................................................................................... 79
FIGURE 32: MODULE BOTTOM DIMENSIONS (BOTTOM VIEW) ................................................................. 80
FIGURE 33: RECOMMENDED FOOTPRINT (TOP VIEW) .............................................................................. 81
FIGURE 34: TOP VIEW OF THE MODULE ...................................................................................................... 82
FIGURE 35: BOTTOM VIEW OF THE MODULE .............................................................................................. 82
FIGURE 36: RECOMMENDED REFLOW SOLDERING THERMAL PROFILE ................................................ 85
FIGURE 37: TAPE DIMENSIONS ..................................................................................................................... 87
FIGURE 38: REEL DIMENSIONS ..................................................................................................................... 87