Yuga NB module hardware manual V1.01

LPM2100 mg NB module hardware manual
Shang Hai YUGE Information Technology co., LTD
Page
3
of
39
Contents
Chapter 1. Introduction............................................................................................................... 8
Chapter 2. Review of modules.................................................................................................... 9
2.1 A brief introduction to the module................................................................................ 9
2.2 Main performance......................................................................................................... 9
2.3 Module function block diagram..................................................................................10
2.4 Module working mode................................................................................................ 11
Chapter 3. Interface application description............................................................................. 12
3.1 A summary of this chapter...........................................................................................12
3.2 Module interface......................................................................................................... 12
3.2.1 LPM2100 mg pins distribution diagram.......................................................... 12
3.2.2 Module pins description...................................................................................13
3.3 Power interface............................................................................................................15
3.4 VDD_EXT 2V8 voltage output...................................................................................15
3.5 Switchgear reset mode................................................................................................ 16
3.5.1 Turn on the module.......................................................................................... 16
3.5.2 Starting time sequence..................................................................................... 16
3.5.3 Module shutdown.............................................................................................17
3.5.4 Reset control.................................................................................................... 17
3.6 UART interface........................................................................................................... 18
3.6.1 Serial port application circuit...........................................................................19
3.6.2 RI interface.......................................................................................................20
3.7 USIM interface............................................................................................................21
3.7.1 USIM card reference circuit.............................................................................21
3.7.2 SIM_DECT hot plug reference design.............................................................22
3.8 ADC interface..............................................................................................................23
3.9 SPI interface................................................................................................................23
3.10 I2C bus...................................................................................................................... 24
3.11 Network indicator interface.......................................................................................25
3.12 General GPIO interface.............................................................................................26
Chapter 4. RF overall technical index.......................................................................................27
4.1 Summary..................................................................................................................... 27
4.2 Main antenna and Bluetooth antenna..........................................................................27
4.3 Route guidance of radio frequency signal line............................................................28