Product Name LPM2100 mg NB module hardware manual Number of Pages 38 Produce Version V1.01 Date 2018/7/18 LPM2100 mg NB module hardware manual V1.01 Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Update records version V1.01 Date 2018/8/1 Author Frog Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Contents Chapter 1. Introduction............................................................................................................... 8 Chapter 2. Review of modules....................................................................................................9 2.1 A brief introduction to the module................................................................................ 9 2.2 Main performance........................................................
LPM2100 mg NB module hardware manual 4.4 Radiofrequency connector.......................................................................................... 29 4.5 Working frequency......................................................................................................30 4.6 RF conduction emission power and acceptance sensitivity........................................ 31 4.7 Power consumption characteristics.............................................................................
LPM2100 mg NB module hardware manual Figure 3-13 SIM card hot plug detection circuit *....................................................................22 Figure 3-14 SPI reading sequence diagram.............................................................................. 24 Figure 3-15 SPI writing sequence diagram...............................................................................24 Figure 3-16 I2C interface reference circuit...................................................................
LPM2100 mg NB module hardware manual Table 3-15 general GPIO pin definition....................................................................................26 Table 4-1 RF pin definition....................................................................................................... 27 Table 4-2 RF connector main parameters................................................................................. 30 Table 4-3 radiofrequency frequency meter....................................................
LPM2100 mg NB module hardware manual Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Chapter 1. Introduction This document is a wireless solution product LPM2100 mg NB module hardware interface manual, which is designed to describe the hardware composition and functional features of the module, the definition and usage of the application interface, the electrical performance and mechanical properties. Combined with this document and other application documents, users can quickly use the module to design wireless products.
LPM2100 mg NB module hardware manual Chapter 2. Review of modules 2.1 A brief introduction to the module The LPM2100 mg module is a two band NB-IOT IOT wireless communication module, which supports Band3, Band5 and Band8. It is mainly applied to low power data transmission service. Meet the 3GPP Release 13 standard. The module has 44 pins in all. The ultra small size with 15.8mm*17.7mm*2.2mm can meet almost all M2M requirements. The LPM2100 mg module is a patch module.
LPM2100 mg NB module hardware manual Working band Network protocol characteristics Data transmission swap function * One Hardware reset interface Three UART serial port interface One SPI interface One Network state indicator interface One PSM_EINT# interface One ADC detection interface Tri frequency: Band3, Band5, Band8 The module can automatically search frequency bands, and the band selection can be set by AT command.
LPM2100 mg NB module hardware manual Figure 2-1 function block diagram of LPM2100 mg module 2.4 Module working mode Table 2-2 work mode Working mode Turn off the machine Flight Mode Dormancy Free Data transmission PSM mode Describe In the case of shutdown, the module can't work The module closes the module RF circuit, unable to interact with the network. The module closes most functions, and it will synchronize with the network.
LPM2100 mg NB module hardware manual Chapter 3. Interface application description 3.1 A summary of this chapter The LPM2100 mg NB module has 44 pins, including the following unit interface functions. The functions of each unit interface will be explained in detail in the following chapters. Power supply interface USIM interface UART interface Network status indicator interface SPI interface RF antenna interface I2C interface 3.2 Module interface 3.2.
LPM2100 mg NB module hardware manual 3 The voltage domain of the PSM_EINT tube is 1.1V. 3.2.
LPM2100 mg NB module hardware manual PO Output power supply to Far away from the SIM card source of interference 16 NETLIGHT Main serial port interface DO Network status indication 2.8V voltage domain 17 RXD DI Master data reception 2.8V voltage domain 18 TXD DO Master data transmission 2.8V voltage domain 20 RI DO Ringing hints 2.8V voltage domain 22 CTS DO Scavenging sending 2.8V voltage domain DI Request to send 2.
LPM2100 mg NB module hardware manual interface 35 RF_ANT IO 8,21,25，44 RESERVED RF antenna interface NC impedance 50Ω characteristic impedance Hang out when you don't need it 3.3 Power interface The LPM2100 mg NB module power interface consists of two parts: VBAT is the power supply for the module. The VDD_EXT is an internal LDO 2.8V output power for external use. The voltage input range of the power supply VBAT is 3.4V~4.2V.
LPM2100 mg NB module hardware manual Figure 3-3 VDD_EXT power output sequence diagram. 3.5 Switchgear reset mode 3.5.1 Turn on the module LPM 2100 mg NB module VBAT power on automatically boot, users can query the level of VDD_EXT pin to determine whether the module boot. 3.5.
LPM2100 mg NB module hardware manual 3.5.3 Module shutdown The shutdown of the LPM2100 mg module can be powered off by the VBAT pin or shutdown by using the AT "at+cpof" command. When the module is in the boot state, the VBAT pin stops the power supply ，the module is to turn off.
LPM2100 mg NB module hardware manual Figure 3-6 reset reference circuit Table 3-5 RESET pin parameters Symbol Describe Min Typical Max Unit 600 ms Treset Low level pulse width 100 VIH RESET input high level voltage 1.96 2.8 3 V VIL RESET input low level voltage -0.3 0 0.84 V Figure 3-7 reset sequence diagram The LPM2100 mg module supports AT command reset, and the AT command is AT+TRB to restart the module. Detailedcommand can view the LPM2100 mg AT command set manual. 3.
LPM2100 mg NB module hardware manual Debug serial port can upgrade firmware, check log information and so on. Module serial port baud rate can be set 4800, 9600, 19200, 38400, 57600, 115200, 230400, 460800, 921600 BPS baud rate, the default is 57600 bps. Table 3-6 definition of serial pin Pin Pin name IO Functional description Remarks 18 TXD DO Master data transmission 2.8V voltage domain 20 RI DO Ringing hints 2.8V voltage domain 22 CTS DO Scavenging sending 2.
LPM2100 mg NB module hardware manual If you need to use the 2 wire serial port, you can refer to the following serial port design. Figure 3-9 UART serial port design diagram The module serial port is the TTL 2.8V electrical level. If the serial port needs to be connected with the MCU which have 3.3V electrical level, a level conversion chip needs to be added to realize the level matching. The chip connection mode can refer to the following circuit. Figure 3-10 UART level conversion circuit 3.6.
LPM2100 mg NB module hardware manual 3.7 USIM interface The LPM 2100 mg module provides a USIM card interface compatible with the ISO 7816-3 standard. The USIM card power supply is provided by the module internal power manager and supports 1.8V/3.0V voltage. Table 3-8 USIM card signal definition Pin Pin name IO Functional description Remarks 2 SIM_DECT DI SIM card hot plug detection Internal level has been pulled up 10 SIM_GND SIM card ground 2.
LPM2100 mg NB module hardware manual radiofrequency radiation, the card is far away from the radio frequency, power and high-speed signal line. The internal SIM_DATA has been pulled to VDD_EXT by 47K resistance, and no external pull resistance is required. SIM_DECT is a SIM card insertion or not insertion of the detection foot, the default is high level, hot-plug application can be through this PIN foot SIM card status detection.
LPM2100 mg NB module hardware manual Using the normally closed SIM card holder or the normally open SIM card holder, the detection function can be set through the AT instruction. When AT+HOSCFG=1,1, the SIM card is in a high state. When setting AT+HOSCFG=1,0, the SIM card is in a low state, and when setting AT+HOSCFG=0,0, the SIM card hot plug function is closed. "*" indicates that it is being developed. 3.
LPM2100 mg NB module hardware manual Figure 3-14 SPI reading sequence diagram Figure 3-15 SPI writing sequence diagram 3.10 I2C bus The LPM 2100 mg NB module provides a set of hardware 5.0 protocol bidirectional serial buses with a clock rate of 400 KHZ and an interface voltage of 2.8 V.
LPM2100 mg NB module hardware manual Figure 3-16 I2C interface reference circuit The internal pins of the I2C_SCL and I2C_SDA have been pulled up, so the pull-up resistors can be ignored externally. 3.11 Network indicator interface The LPM2100 mg NB module provides a NENLIGHT pin to indicate the status of network communication, which can be used to drive LED lights indicating the network state.
LPM2100 mg NB module hardware manual Figure 3-17 circuit diagram of network indicator The resistance value in the circuit diagram of the network indicator can be adjusted according to the LED lamp parameters. 3.12 General GPIO interface The LPM2100 mg NB module provides two routes of GPIO. Some of these GPIO can be reused as a variety of functions. The specific usage can be consulted by the module provider.
LPM2100 mg NB module hardware manual Chapter 4. RF overall technical index 4.1 Summary LPM2100 mg NB module radio frequency overall technical indicators include the following parts: Frequency of work; Conductive radiofrequency measurement; It conducts receiving sensitivity and transmitting power. Antenna requirements Power characteristics of module 4.
LPM2100 mg NB module hardware manual The 26 pin of the LPM2100 mg NB module is the Bluetooth antenna interface. In order to facilitate the antenna debugging, it is necessary to add the matching circuit on the main board and take the 50 European impedance line. The recommended circuit is as follows: Figure 4-2 Bluetooth antenna matching circuit diagram The two antennas of the LPM2100 mg NB module are led by weld plate.
LPM2100 mg NB module hardware manual Figure 4-3 complete structure of microstrip line Figure 4-4 reference to the structure of the third layer microstrip transmission line Figure 4-5 complete structure of strip line 4.4 Radiofrequency connector In the design process, if the RF connector is required, the antenna connector must use a 50 ohm characteristic impedance coaxial connector, and the Hirose UF.L-R-SMT connector is recommended. Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Figure 4-6 RF connector size diagram The RF connector plug connected with this connector is U.FL-LP series of HRS company. Figure 4-7 antenna connector plug diagram Table 4-2 RF connector main parameters Rated condition environment condition frequency range DC to 6GHZ –40°C to +85°C characteristic impedance 50 Ω –40°C to +85°C 4.
LPM2100 mg NB module hardware manual 4.6 RF conduction emission power and acceptance sensitivity The RF output power of the LPM2100 mg NB module is as follows: Table 4-4 LPM2100 mg RF output power Directories NB-IOT 3GPP protocol requirements (dBm) Minimum value LTE B3 21 to 25 <-40dBm LTE B5 21 to 25 <-40dBm LTE B8 21 to 25 <-40dBm Table 4-5 radiofrequency sensitivity index Directories NB-IOT 3GPP protocol requirements (dBm) Minimum Typical Maximum LTE B3 -107.5 <-107.
LPM2100 mg NB module hardware manual Chapter 5. Electrical characteristics of interface 5.1 Summary Extreme work IO level Power supply Electrostatic characteristics Reliability index 5.
LPM2100 mg NB module hardware manual 5.4 Power Supply The input power requirements of the LPM2100 mg NB module are as follows: Table 5-4 LPM2100 mg module working voltage Parameter Minimum Typical Maximum Unit VBAT 3.4 3.7 4.2 V The power on any interface of the module must not be earlier than the boot time of the module, otherwise it may cause the module to be abnormal or damaged. 5.
LPM2100 mg NB module hardware manual work Test duration: 24 h normal RF index check: normal High Temperature: 70 C temperature Work mode: normal work work Test duration: 24 h Appearance check: normal JESD22- Functional examination: A108-C normal RF index check: normal High temperature temperature: 70 C Temperature cycle Low temperature temperature: - 20 C Work mode: normal work Appearance check: normal JESD22- Functional examination: A105-B normal RF index check: normal Test duration: 30
LPM2100 mg NB module hardware manual Chapter 6. Structure and mechanical properties 6.1 Summary Outward appearance Mechanical dimension of module 6.2 Appearance The LPM2100 mg NB module is PCBA with a single layout. The module appearance is as follows: Figure 6-1 LPM2100 mg module appearance Figure 6-2 front view and side view of LPM2100 mg module (unit MM) Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Figure 6-3 LPM2100 mg module bottom view (unit MM) Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Chapter 7. Production and packaging 7.1 Summary Packaging and storage of module Production welding 7.2 Module packaging and storage LPM 2100 mg NB module is packed in tray and packed in vacuum sealed bag. It is shipped in the form of vacuum sealed bag with 10PCS as a disk and 100PCS as a package. The storage of LPM2100 mg NB module module should follow the following conditions: The humidity sensitive grade of the module is level 3.
LPM2100 mg NB module hardware manual Figure 7-1 reflow soldering temperature curve Table 7-1 recirculation process parameter table Temperature zone time Preheating zone（40S℃-165℃） key parameter heating rate：1℃/s-3℃/s Isothermal zone（160℃-210℃） (t1～t2)：70s-120s Reflux zone（> 217℃） (t3～t4)：40s-60s Cooling zone cooling rate：2℃/s ≤ Slope ≤ 5℃/s Shang Hai YUGE Information Technology co.
LPM2100 mg NB module hardware manual Chapter 8.
