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Quectel NB-IoT Module Series, Hardware Design

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NB-IoT Module Series

BC66 Hardware Design

BC66_Hardware_Design 41 / 50

6

Mechanical Dimensions

This chapter describes the mechanical dimensions of the module. All dimensions are measured in

millimetre (mm), and the tolerances for dimensions without tolerance values are ±0.05mm.

6.1. Mechanical Dimensions of the Module

Figure 26: BC66 Top and Side Dimensions (Unit: mm)

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Summary of Contents for NB-IoT Module Series

Page 1: ...BC66 Hardware Design NB IoT Module Series Rev BC66_Hardware_Design_V1 0 Date 2017 12 01 Status Preliminary www quectel com...

Page 2: ...IDED IS BASED UPON CUSTOMERS REQUIREMENTS QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION IT MAKES AVAILABLE QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HERE...

Page 3: ...NB IoT Module Series BC66 Hardware Design BC66_Hardware_Design 2 50 About the Document History Revision Date Author Description 1 0 2017 12 01 Speed SUN Newgate HUA Initial...

Page 4: ...odes 18 3 5 Power Saving Mode PSM 19 3 6 Power Supply 20 3 6 1 Power Supply Pins 20 3 6 2 Reference Design for Power Supply 20 3 7 Turn on and off Scenarios 21 3 7 1 Turn on 21 3 7 2 Turn off 22 3 7 3...

Page 5: ...Electrical Reliability and Radio Characteristics 40 6 Mechanical Dimensions 41 6 1 Mechanical Dimensions of the Module 41 6 2 Recommended Footprint 43 6 3 Top and Bottom Views of the Module 44 7 Stora...

Page 6: ...RESET PIN 23 TABLE 9 PIN DEFINITION OF UART INTERFACES 25 TABLE 10 PIN DEFINITION OF SPI INTERFACE 29 TABLE 11 PIN DEFINITION OF USIM INTERFACE 30 TABLE 12 PIN DEFINITION OF ADC INTERFACE 31 TABLE 13...

Page 7: ...CIRCUIT WITH TRANSISTOR CIRCUIT 28 FIGURE 17 SKETCH MAP FOR RS 232 INTERFACE MATCH 28 FIGURE 18 SPI INTERFACE REFERENCE CIRCUIT WITH TRANSLATOR CHIP 29 FIGURE 19 REFERENCE CIRCUIT FOR USIM INTERFACE...

Page 8: ...ardware interface which are connected with the customers applications This document can help customers quickly understand module interface specifications electrical and mechanical details as well as o...

Page 9: ...rding the aircraft if your device offers an Airplane Mode which must be enabled prior to boarding an aircraft Switch off your wireless device when in hospitals clinics or other health care facilities...

Page 10: ...onnectivity with the applications BC66 provides abundant external interfaces UARTs SPI ADC etc and protocol stacks UDP TCP CoAP LWM2M etc and also supports OneNET Cloud platform which provide great co...

Page 11: ...used for firmware upgrading Default baud rate 115200bps Debug UART Port Used for software debugging Auxiliary UART Port Used for AT command communication and data transmission Network Protocols UDP TC...

Page 12: ...o radio network Only one or more parameters like Pout might reduce in their value and exceed the specified tolerances When the temperature returns to normal operation temperature levels the module wil...

Page 13: ...X RX 32KHz RTC BLOCK LDO PSM_ENIT USIM Enable PWRKEY DBG_UART USIM SPI VBAT VDD_EXT Figure 1 Functional Diagram means under development 2 4 Development Board Quectel provides a complete set of develop...

Page 14: ...pped with a total of 58 pins including 44 LCC pins and 14 LGA pins The subsequent chapters will provide detailed descriptions of the following functions pins interfaces PSM Power Supply RESET PWRKEY U...

Page 15: ...ESERVED RESERVED TXD_AUX RXD_AUX GND RESERVED RESERVED VDD_EXT RESERVED RESERVED RI PSM_EINT RXD TXD NETLIGHT RESET SIM_VDD VBAT_RF POWER GND UART USIM ANT RESERVED 45 46 47 48 49 50 51 52 53 54 55 56...

Page 16: ...Name Pin No I O Description DC Characteristics Comment VBAT_BB 42 PI Power supply for the module s baseband part Vmax 3 63V Vmin 2 1V Vnorm 3 3V VBAT_RF 43 PI Power supply for the module s RF part Vm...

Page 17: ...n No I O Description DC Characteristics Comment PSM_EINT 19 DI Dedicated external interrupt pin Used to wake up the module from PSM Network Status Indication Pin Name Pin No I O Description DC Charact...

Page 18: ...domain USIM Interface Pin Name Pin No I O Description DC Characteristics Comment SIM_VDD 14 DO USIM card power supply Vnorm 1 8V SIM_RST 12 DO USIM card reset signal VOLmax 0 15 SIM_VDD VOHmin 0 85 SI...

Page 19: ...nnected 1 Keep all unused pins unconnected 2 means under development 3 4 Operating Modes The following table briefly describes the three operating modes of the module Table 5 Overview of Operating Mod...

Page 20: ...an active time value T3324 to the module and the mobile reachable timer starts When the T3324 timer expires the module enters PSM for duration of T3412 periodic TAU timer Please note that the module...

Page 21: ...Power design for a module is critical to its performance It is recommended to use a low quiescent current LDO with output current capacity of 0 5A as the power supply for BC66 A Li MnO2 2S alkaline ba...

Page 22: ...1 Turn on BC66 can be turned on by driving the PWRKEY pin to a low level for a certain time Table 7 PWRKEY Pin Pin Name Pin No Description PWRKEY Pull down Time PWRKEY 7 Pull down PWRKEY to turn on t...

Page 23: ...nt is indispensable to be placed nearby the button for ESD protection A reference circuit is shown in the following figure PWRKEY S1 Close to S1 TVS Figure 6 Turn on the Module Using Keystroke The tur...

Page 24: ...voltage for a certain period of time will reset the module Table 8 Reset Pin Pin Name Pin No Description Reset Pull down Time RESET 15 Reset the module Active low TBD The recommended circuits of reset...

Page 25: ...VBAT TBD Resetting Module Status Running RESET Restart TBD VDD_EXT Figure 11 Reset Timing 3 8 UART Interfaces The module provides three UART ports main UART port debug UART port and auxiliary UART por...

Page 26: ...n Definition of UART Interfaces means under development 3 8 1 Main UART Port The main UART port is used for AT command communication and data transmission It can also be used for firmware upgrading Th...

Page 27: ...ewer tools customers can check the log information via debug UART port for firmware debugging A reference design for the debug UART port is shown below DTE TXD RXD GND Module TXD_DBG RXD_DBG GND Figur...

Page 28: ...re shows a reference design VCCA VCCB OE A1 A2 A3 A4 A5 A6 A7 A8 GND B1 B2 B3 B4 B5 B6 B7 B8 VDD_EXT TXD RXD TXD_DBG RXD_AUX RXD_DBG TXD_AUX 51K 51K 0 1uF 0 1uF TXD RXD TXD_DBG RXD_AUX RXD_DBG TXD_AUX...

Page 29: ...Circuit The following circuit shows a reference design for the communication between the module and PC Please make sure the I O voltage of level shifter which connects to module is 1 8V TXD RXD RI Mod...

Page 30: ...efinition of SPI Interface The module provides a 1 8V SPI interface A level translator between the module and host should be used if the application is equipped with a 3 3V processor or device interfa...

Page 31: ...22R 22R 22R 100nF USIM Card Connector GND TVS 33pF33pF 33pF VCC RST CLK IO VPP GND GND 33pF 10K Figure 19 Reference Circuit for USIM Interface with a 6 pin USIM Card Connector For more information of...

Page 32: ...The ESD protection device should be placed as close to USIM card connector as possible and make sure the USIM card signal lines go through the ESD protection device first and then to the module The 22...

Page 33: ...ans under development 3 13 Network Status Indication The NETLIGHT signal can be used to drive a network status indicator LED A reference circuit is shown as below Module NETLIGHT 4 7K 47K 2 2K VBAT Fi...

Page 34: ...BC66 provides an RF antenna pad for external NB IoT antenna connection The RF trace in host PCB connected to the module s RF antenna pad should be coplanar waveguide line or microstrip line whose char...

Page 35: ...cy Range Depend on the frequency band s provided by the network operator VSWR 2 Gain dBi 1 Max Input Power W 50 Input Impedance 50 Polarization Type Vertical 4 1 3 Reference Design of RF Layout For us...

Page 36: ...are Design BC66_Hardware_Design 35 50 Figure 22 Microstrip Line Design on a 2 layer PCB Figure 23 Coplanar Waveguide Line Design on a 2 layer PCB Figure 24 Coplanar Waveguide Line Design on a 4 layer...

Page 37: ...F pins and the RF connector should be as short as possible and all the right angle traces should be changed to curved ones There should be clearance area under the signal pin of the antenna connector...

Page 38: ...el 14 4 1 5 RF Receiving Sensitivity Table 17 RF Receiving Sensitivity B12 23dBm 2dB 39dBm B13 23dBm 2dB 39dBm B17 23dBm 2dB 39dBm B18 23dBm 2dB 39dBm B19 23dBm 2dB 39dBm B20 23dBm 2dB 39dBm B25 23dBm...

Page 39: ...Band Receive Transmit B1 2110MHz 2170MHz 1920MHz 1980MHz B2 1930MHz 1990MHz 1850MHz 1910MHz B3 1805MHz 1880MHz 1710MHz 1785MHz B5 869MHz 894MHz 824MHz 849MHz B8 925MHz 960MHz 880MHz 915 MHz B12 729MH...

Page 40: ...NB IoT Module Series BC66 Hardware Design BC66_Hardware_Design 39 50 means under development B26 859MHz 894MHz 814MHz 849MHz B28 758MHz 803MHz 703MHz 748MHz B66 2110MHz 2200MHz 1710MHz 1780MHz NOTE...

Page 41: ...NB IoT Module Series BC66 Hardware Design BC66_Hardware_Design 40 50 5 Electrical Reliability and Radio Characteristics The information will be added in the future version of this document...

Page 42: ...al Dimensions This chapter describes the mechanical dimensions of the module All dimensions are measured in millimetre mm and the tolerances for dimensions without tolerance values are 0 05mm 6 1 Mech...

Page 43: ...NB IoT Module Series BC66 Hardware Design BC66_Hardware_Design 42 50 Figure 27 Module Bottom Dimension Bottom View...

Page 44: ...dule Series BC66 Hardware Design BC66_Hardware_Design 43 50 6 2 Recommended Footprint Figure 28 Recommended Footprint Unit mm The module should be kept about 3mm away from other components on the host...

Page 45: ...sign 44 50 6 3 Top and Bottom Views of the Module Figure 29 Top View of the Module Figure 30 Bottom View of the Module These are design effect drawings of BC66 modules For more accurate pictures pleas...

Page 46: ...RH 3 Devices require baking before mounting if any circumstance below occurs When the ambient temperature is 23 C 5 C and the humidity indication card shows the humidity is 10 before opening the vacu...

Page 47: ...peak reflow temperature is from 235 C to 245 C for SnAg3 0Cu0 5 alloy The absolute maximum reflow temperature is 260 C To avoid damage to the module caused by repeated heating it is suggested that th...

Page 48: ...ries BC66 Hardware Design BC66_Hardware_Design 47 50 7 3 1 Tape and Reel Packaging The reel is 330mm in diameter and each reel contains 250 modules Figure 32 Tape Dimensions Unit mm Figure 33 Reel Dim...

Page 49: ...el_Module_Secondary_SMT_User_Guide Module Secondary SMT User Guide Abbreviation Description ADC Analog to Digital Converter CoAP Constrained Application Protocol DCE Data Communications Equipment typi...

Page 50: ...ternet of Things PCB Printed Circuit Board PDU Protocol Data Unit PPP Point to Point Protocol PSM Power Save Mode RF Radio Frequency RTC Real Time Clock RXD Receive Data SMS Short Message Service SSL...

Page 51: ...evel Voltage Value VILmax Maximum Input Low Level Voltage Value VILmin Minimum Input Low Level Voltage Value VImax Absolute Maximum Input Voltage Value VInorm Absolute Normal Input Voltage Value VImin...

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