Product Info

LPWA Module Series
BG600L-M3 Hardware Design
BG600L-M3_Hardware_Design 7 / 83
Figure Index
Figure 1: Functional Diagram ..................................................................................................................... 18
Figure 2: Pin Assignment (Top View) ........................................................................................................ 20
Figure 3: Sleep Mode Application via UART ............................................................................................. 31
Figure 4: Power Supply Limits during Burst Transmission ........................................................................ 32
Figure 5: Star Structure of the Power Supply ............................................................................................ 33
Figure 6: Turn on the Module Using Driving Circuit ................................................................................... 34
Figure 7: Turn on the Module Using Keystroke ......................................................................................... 34
Figure 8: Power-on Timing ......................................................................................................................... 35
Figure 9: Power-off Timing ......................................................................................................................... 36
Figure 10: Reset Timing ............................................................................................................................. 37
Figure 11: Reference Circuit of RESET_N by Using Driving Circuit ......................................................... 37
Figure 12: Reference Circuit of RESET_N by Using Button...................................................................... 38
Figure 13: Reference Design of PON_TRIG ............................................................................................. 39
Figure 14: Reference Circuit of (U)SIM Interface with an 8-Pin (U)SIM Card Connector ......................... 40
Figure 15: Reference Circuit of (U)SIM Interface with a 6-Pin (U)SIM Card Connector ........................... 40
Figure 16: Reference Design of USB PHY ................................................................................................ 42
Figure 17: Reference Circuit of USB Interface .......................................................................................... 42
Figure 18: Main UART Reference Design (Translator Chip) ..................................................................... 45
Figure 19: Main UART Reference Design (Transistor Circuit) .................................................................. 45
Figure 20: Reference Circuit of PCM Application with Audio Codec ......................................................... 46
Figure 21: Reference Circuit of the Network Status Indicator ................................................................... 47
Figure 22: Reference Design of STATUS .................................................................................................. 48
Figure 23: Reference Design of USB_BOOT Interface ............................................................................. 49
Figure 24: Timing of Turning on Module with USB_BOOT ........................................................................ 50
Figure 25: Reference Design of Main Antenna Interface .......................................................................... 58
Figure 26: Microstrip Design on a 2-layer PCB ......................................................................................... 58
Figure 27: Coplanar Waveguide Design on a 2-layer PCB ....................................................................... 59
Figure 28: Coplanar Waveguide Design on a 4-layer PCB (Layer 3 as Reference Ground) .................... 59
Figure 29: Coplanar Waveguide Design on a 4-layer PCB (Layer 4 as Reference Ground) .................... 59
Figure 30: Reference Design of GNSS Antenna Interface ........................................................................ 61
Figure 31: Dimensions of the U.FL-R-SMT Connector (Unit: mm) ............................................................ 62
Figure 32: Mechanicals of U.FL-LP Connectors ........................................................................................ 63
Figure 33: Space Factor of Mated Connector (Unit: mm) .......................................................................... 63
Figure 34: Module Top and Side Dimensions ............................................................................................ 72
Figure 35: Module Bottom Dimensions (Bottom View) .............................................................................. 73
Figure 36: Recommended Footprint (Top View) ........................................................................................ 74
Figure 37: Top View of the Module ............................................................................................................ 75
Figure 38: Bottom View of the Module ....................................................................................................... 75
Figure 39: Recommended Reflow Soldering Thermal Profile ................................................................... 77
Figure 40: Tape Dimensions ...................................................................................................................... 79
Figure 41: Reel Dimensions ....................................................................................................................... 79