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Product Name CLM920_NC2_LTE M.2 Module Hardware Usage Guide Number of Pages Produce Version V1.1 Date 20180316 CLM920_NC2 LTE M.2 Module Hardware Usage Guide V1.1 Shanghai Yuge Information Technology co., LTD All rights reserved...
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CLM920_NC2_LTE M.2 Module Hardware Usage Guide Update records Version Date Author Description V1.0 20170622 David Initial V1.1 20180316 David Update image and GPS section - 2 - Shanghai Yuge Information Technology co., LTD...
Electromagnetic Compatibility Electro Magnetic Interference Electronic Static Discharge EVDO Evolution Data Only Full Rate GPRS General Packet Radio Service Half Rate IMEI International Mobile Equipment Identity International Standards Organization Phase Locked Loop - 6 - Shanghai Yuge Information Technology co., LTD...
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CLM920_NC2_LTE M.2 Module Hardware Usage Guide Point-to-point protocol Random Access Memory Read-only Memory Real Time Clock Short Message Service UART Universal asynchronous receiver-transmitter User Identifier Management Universal Serial Bus VSWR Voltage Standing Wave Ratio - 7 - Shanghai Yuge Information Technology co., LTD...
LTE for CMCC,CUCC and CTCC, support SRLTE,GPS CLM920_TB2 LTE for CMCC,CUCC and CTCC, support GPS CLM920_TE2 LTE for EU,CMCC and CUCC, support GPS Table 2-2 Key Features characteristic description Physical characteristics size(L*W*H):42mmx30mmx2.22mm fixed way Ground screw hole - 8 - Shanghai Yuge Information Technology co., LTD...
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Hardware reset interface Application interface UART serial interface Power interface Network status indication interface General purpose GPIO interface Main antenna connector (MM4829-2702) Antenna connector Diversity Antenna Connector (MM4829-2702) GPS antenna connector (MM4829-2702) - 9 - Shanghai Yuge Information Technology co., LTD...
G stands for GPS. 2.3 Module function The CLM920_NC2 M.2 module mainly contains the following circuit units: Baseband processing unit Power management unit Memory unit - 10 - Shanghai Yuge Information Technology co., LTD...
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RF front end unit GPS RF receiving unit The functional block diagram of the CLM920_NC2 M.2 module is as follows: Figure 2-1 Functional block diagram of the CLM920_NC2 M.2 module - 11 - Shanghai Yuge Information Technology co., LTD...
8 pin is the gap. For the M.2 naming convention, the CLM920_NC2 M.2 module uses Type 3042-XX1-B (30mmx42mm, Top surface component layer thickness is 2.0mm, PCB thickness is 0.8mm, Key ID is B). - 12 - Shanghai Yuge Information Technology co., LTD...
Figure 3-2 Detail of the gold finger TOP and BOTTOM AB 3.2.2 Interface definition The CLM920_NC2 M.2 module interface is a standard PCI Express M.2 interface. The module interface definitions are shown in the following table: Table 3-1 IO parameter definition Shanghai Yuge Information Technology co., LTD - 13 -...
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Power on signal Active high USB2.0 USB_D+ USB_DP differential signal W_DISABLE W_DISABL WWAN shutdown Active low control signal USB2.0 USB_D- USB_DM differential signal STATUS_LE System status LED# OD output indicator NOTCH - 14 - Shanghai Yuge Information Technology co., LTD...
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Ground SPI main output SPI_MOSI from input UIM_RESE card reset UIM_RESET signal SIM card clock UIM_CLK UIM_CLK signal Ground card data UIM_DATA UIM_DATA signal Module serial port URAT_TXD Reserved optional sending - 15 - Shanghai Yuge Information Technology co., LTD...
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DO I2C serial clock I2C_SDA I2C_SDA I2C serial data WAKEUP_I Host wakes I2C_IRQ Wake up input module, low effective Ground SYSCLK MCLK DO Clock output Reserved optional TX_BLANKI Ground Ground ANTCTL0 ANTCTL1 ANTCTL2 - 16 - Shanghai Yuge Information Technology co., LTD...
The power interface of the CLM920_NC2 M.2 module is as follows: Table 3-3 Power pin definition Minimum Typical Maximum Pin number name description voltage voltage voltage Module 2,4,70,72,74 VBAT 3.3V 3.7V 4.2V power supply - 17 - Shanghai Yuge Information Technology co., LTD...
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Customers are advised to use DCDC or LDO to provide sufficient current. The VBAT is then powered through the MOS transistor so that the module can be completely powered down. For practical use, please refer to the following circuit design: Figure 3-3 LDO power reference circuit - 18 - Shanghai Yuge Information Technology co., LTD...
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Table 3-4 Power supply circuit filter capacitor design is as follows Recommended application Description capacitance Reduce power supply 330uF Power supply capacitor fluctuations at high currents Filter out digital signals such as 1uF,100nF Digital signal noise clocks to generate interference - 19 - Shanghai Yuge Information Technology co., LTD...
USB2.0 feature. The USB interface is defined as follows: Table 3-5 USB interface pin definition Pin number Signal name description USB_DP USB2.0 differential signal + USB_DM USB2.0 differential signal - - 20 - Shanghai Yuge Information Technology co., LTD...
1.8V. Through the serial port, you can send AT commands, print program log information, and so on. The module serial port supports 9600, 19200, 38400, 57600, 115200, 230400bps baud rate, the default is 115200bps. The UART interface is defined as follows: - 21 - Shanghai Yuge Information Technology co., LTD...
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MCU of 3.3V level, it is necessary to add a level conversion chip externally to achieve level matching. For the chip connection method, refer to the following circuit: Figure 3-9 Level shifting circuit - 22 - Shanghai Yuge Information Technology co., LTD...
On the USIM interface line, it is recommended to select ON SEMI's SMF15C device for ESD protection. The peripheral circuit device of the USIM card should be placed close to the card holder. - 23 - Shanghai Yuge Information Technology co., LTD...
It is recommended to add a diode protection next to the UIM _DET pin of the module. When using a normally closed SIM or a normally open SIM card, the detection function can be set by the AT command. - 24 - Shanghai Yuge Information Technology co., LTD...
The RESET pin is sensitive to interference and should be protected when routing. Figure 3-12 Reset Reference Circuit Table 3-10 RESET pin parameters symbol description Typical unit Treset Low pulse width - 25 - Shanghai Yuge Information Technology co., LTD...
Boot time (according to uart status) ONOFF input high level ONOFF input low level -0.3 3.8 Network indication interface The CLM920_NC2 M.2 module provides an OD output + to indicate the status of the RF communication. - 26 - Shanghai Yuge Information Technology co., LTD...
The brightness of the LED lamp can be adjusted by adjusting the value of the current limiting resistor, and the current can be adjusted to a maximum of 40 mA. 3.9 RF antenna interface 3.9.1 RF connector location - 27 - Shanghai Yuge Information Technology co., LTD...
The antenna connector must use a 50 ohm characteristic impedance coaxial connector. Murata's MM4829-2702 connector is recommended. Figure 3-16 RF connector size chart Table 3-14 Main parameters of the RF connector - 28 - Shanghai Yuge Information Technology co., LTD...
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Environmental conditions Frequency Range DC to 6GHZ –40°C to +85°C Characteristic impedance 50 Ω –40°C to +85°C 0.81mm matched coaxial cable 1.13mm matching coaxial cable Figure 3-17 Matching coaxial RF line size - 29 - Shanghai Yuge Information Technology co., LTD...
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CLM920_NC2 M.2 module provides three RF antenna interfaces, respectively as the main set antenna, diversity antenna, GPS antenna (optional). Connected to the antenna must be a 50 ohm characteristic impedance trace. Figure 3-18 Main set, diversity, GPS antenna matching circuit - 30 - Shanghai Yuge Information Technology co., LTD...
Table 4-9 WCDMA Power Consumption Frequency band Power dbm Current consumption mA WCDMA B1 23.2 WCDMA B1 WCDMA B3 23.5 WCDMA B3 WCDMA B5 23.8 WCDMA B5 WCDMA B8 WCDMA B8 - 35 - Shanghai Yuge Information Technology co., LTD...
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Power dbm Current consumption mA 21.5 21.8 23.2 23.5 22.5 21.9 22.1 22.8 Table 4-11 TD-SCDMA power consumption Frequency band Power dbm Current consumption mA TDS B34 22.8 TDS B39 23.1 - 36 - Shanghai Yuge Information Technology co., LTD...
3.3V 3.3V 4.2V The power-on time of any interface of the module must not be earlier than the boot time of the module. Otherwise, the module may be abnormal or damaged. - 37 - Shanghai Yuge Information Technology co., LTD...
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When using the CLM920_NC2 M.2 module, ESD protection is required to ensure product quality. Table 5-4 CLM920_NC2 M.2 ESD Features Test port Contact discharge Air discharge unit USB interface ±4 ±8 USIM interface ±4 ±8 VBAT power supply ±4 ±8 - 38 - Shanghai Yuge Information Technology co., LTD...
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The CLM920_NC M.2 module interface complies with the PCI Express M.2 1.0 interface standard.PCI Express M.2 connectors that meet this standard can be used with them, such as the APCI0026-P001A from LOTES. - 39 - Shanghai Yuge Information Technology co., LTD...
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