LPM2100 bg NB Module Hardware Usage Guide
Shanghai Yuge Information Technology Co., Ltd.
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Figure
Figure 2-1 Functional block diagram of the LPM2100 bg series module..............................- 8 -
Figure 3-1 LPM2100 bg pin assignment diagram..................................................................- 9 -
Figure 3-2 VBAT power supply........................................................................................... - 13 -
Figure 3-3 VDD_EXT power output timing diagram.......................................................... - 14 -
Figure 3-4 boot timing diagram............................................................................................- 14 -
Figure 3-5 Shutdown timing diagram...................................................................................- 15 -
Figure 3-6 Reset reference circuit........................................................................................ - 15 -
Figure 3-7 Reset timing diagram..........................................................................................- 16 -
Figure 3-8 Full-featured serial port design...........................................................................- 17 -
Figure 3-9 UART serial port design..................................................................................... - 18 -
Figure 3-10 UART level conversion circuit......................................................................... - 18 -
Figure 3-11 PSM power saving technology......................................................................... - 19 -
Figure 3-12 DRX power saving technology.........................................................................- 19 -
Figure 3-13 eDRX power saving technology.......................................................................- 20 -
Figure 3-14 SIM circuit design.............................................................................................- 21 -
Figure 3-15 SIM card hot swap detection circuit*............................................................... - 22 -
Figure 3-16 SPI read timing diagram................................................................................... - 23 -
Figure 3-17 SPI write timing diagram..................................................................................- 24 -
Figure 3-18 I2C interface reference circuit.......................................................................... - 24 -
Figure 3-19 Network indicator circuit diagram....................................................................- 25 -
Figure 3-20 WAKEUP wake-up module reference circuit...................................................- 26 -
Figure 3-21 WAKEUP_OUT Wakeup Host Reference........................................................- 26 -
Figure 4-1 Main antenna matching circuit diagram............................................................. - 28 -
Figure 4-2 Complete structure of the microstrip line........................................................... - 28 -
Figure 4-3 Reference ground is the third layer microstrip transmission line structure........- 29 -
Figure 4-4 Complete structure of the strip line.................................................................... - 29 -
Figure 4-5 RF connector size chart...................................................................................... - 30 -
Figure 4-6 Antenna connector matching plug diagram........................................................ - 30 -
Figure 6-1 Appearance of the LPM2100 bg series module..................................................- 35 -
Figure 6-2 Front view and side view of the LPM2100 bg series module (unit MM).......... - 35 -
Figure 6-3 Bottom view of the LPM2100 bg series module (unit MM)..............................- 36 -
Figure 7-1 Reflow soldering temperature graph.................................................................. - 38 -
