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NB-IoT Module Series

BC65 Hardware Design

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6

Mechanical Dimensions

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

millimetre (mm), and dimensional tolerances are ±0.05 mm unless otherwise specified.

6.1. Mechanical Dimensions of the Module

Figure 31: Module Top and Side Dimensions (Unit: mm)

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Содержание BC65

Страница 1: ...BC65 Hardware Design NB IoT Module Series Version 1 0 Date 2021 02 08 Status Released www quectel com...

Страница 2: ...tice Disclaimer While Quectel has made efforts to ensure that the functions and features under development are free from errors it is possible that these functions and features could contain errors in...

Страница 3: ...tel Transmitting reproducing disseminating and editing this document as well as using the content without permission are forbidden Offenders will be held liable for payment of damages All rights are r...

Страница 4: ...cause interference on sensitive medical equipment so please be aware of the restrictions on the use of wireless devices when in hospitals clinics or other healthcare facilities Cellular terminals or m...

Страница 5: ...e Design BC65_Hardware_Design 4 55 About the Document Revision History Version Date Author Description 2019 07 19 Jerry WANG Jack WU Louis GU Creation of the document 1 0 2021 02 08 Jerry WANG Jack WU...

Страница 6: ...scription 16 3 4 Operating Modes 19 3 5 Power Saving 20 3 5 1 Light Sleep Mode 20 3 5 2 Deep Sleep Mode 20 3 6 Power Supply 21 3 6 1 Power Supply Pins 21 3 6 2 Reference Design for Power Supply 22 3 7...

Страница 7: ...istics 41 5 1 Operating and Storage Temperatures 41 5 2 Current Consumption 42 5 3 RF Output Power 43 5 4 RF Receiving Sensitivity 43 5 5 Electrostatic Discharge 44 6 Mechanical Dimensions 45 6 1 Mech...

Страница 8: ...Table 14 Module Status Indicated by NETLIGHT 33 Table 15 Pin Definition of the NB IoT Antenna Interface 35 Table 16 Module Operating Bands 35 Table 17 Antenna Cable Insertion Loss Requirements 36 Tab...

Страница 9: ...9 Figure 18 Reference Circuit with Transistor Circuit 30 Figure 19 Sketch Map for RS 232 Interface Match 30 Figure 20 Reference Circuit for USIM Interface with a 6 pin USIM Card Connector 32 Figure 21...

Страница 10: ...l and mechanical details as well as other related information of the module This document coupled with application notes and user guides makes it easy to design and set up mobile applications with the...

Страница 11: ...into size constrained applications and provide reliable connectivity with applications BC65 provides abundant external interfaces UART ADC etc and protocol stacks UDP TCP MQTT etc which provide a grea...

Страница 12: ...s default and 57600 bps are supported Debug UART Used for firmware debugging and upgrading Support 921600 bps baud rate Auxiliary UART Used for AT command communication and data transmission When used...

Страница 13: ...may undergo a reduction in value exceeding the specified tolerances of 3GPP When the temperature returns to the operating temperature range the module will meet 3GPP specifications again 2 3 Function...

Страница 14: ...RTC BLOCK LDO PSM_EINT USIM PWRKEY DBG_UART USIM VBAT VDD_EXT Switch Load Switch LB TX Filter HB TX Filter HB TX HPM LB RX HB TX LPM LB TX LPM RI Figure 1 Functional Diagram 2 4 Development Board Quec...

Страница 15: ...65 is equipped with a total of 58 pins including 44 LCC pins and 14 LGA pins The subsequent chapters provide detailed descriptions of the following functions and interfaces Operating Modes Power Savin...

Страница 16: ...VED RESERVED AUX_TXD AUX_RXD GND RESERVED VDD_EXT RESERVED RESERVED RI PSM_EINT MAIN_TXD MAIN_RXD NETLIGHT RESET_N USIM_VDD VBAT POWER GND UART USIM ANT RESERVED 45 46 47 48 49 50 51 52 53 54 55 56 57...

Страница 17: ...wer Output Power Supply Pin Name Pin No I O Description DC Characteristics Comment VBAT 42 43 PI Power supply for the module Vmax 4 2 V Vmin 3 2 V Vnorm 3 8 V VBAT 3 2 4 2 V VDD_EXT 24 PO Provides 1 8...

Страница 18: ...d to wake up the module from Deep Sleep Vnorm 1 07 V Valid on the falling edge Network Status Indication Pin Name Pin No I O Description DC Characteristics Comment NETLIGHT 16 DO Network status indica...

Страница 19: ...14 PO USIM card power supply Vnorm 1 8 3 0 V All signals of USIM interface should be protected against ESD with a TVS diode array Maximum trace length from the module pin to USIM card connector is 200...

Страница 20: ...RX eDRX mode DRX eDRX The modem is in idle mode and downlink data can only be received during PTW In this case the modem can switch to PSM or connected mode PSM In power saving mode the modem is disco...

Страница 21: ...duce the power consumption of the module and improve battery life In this mode the UART interface is inactive The following figure shows the power consumption of the module modem in different modes Po...

Страница 22: ...nnection When the module is in Deep Sleep mode it will be woken up in either of the following cases After the T3412 timer expires the module will exit from Deep Sleep mode automatically Pulling down P...

Страница 23: ...is recommended to place a 100 F tantalum capacitor with low ESR ESR 0 7 and three ceramic capacitors 100 nF 100 pF and 22 pF near the VBAT pins Also it is recommended to add a TVS diode on the VBAT t...

Страница 24: ...Turn on pulse PWRKEY 4 7K 47K Figure 6 Turn on the Module by Using Driver Circuit Another way to control PWRKEY is to use a button directly When pressing the button electrostatic strike may be genera...

Страница 25: ...pin can be connected to GND and the module will turn on automatically 3 For the normal initialization of PWRKEY make sure the VBAT voltage is lower than 0 5 V before power on 4 It is recommended that...

Страница 26: ...cting VBAT VBAT VDD_EXT Running OFF Module Status 1 9 14 s AT QPOWD 1 Figure 10 Turn off Timing Turn Off by AT Command AT QPOWD 1 3 7 3 Reset the Module Driving the RESET_N pin to a low level voltage...

Страница 27: ...of resetting the module are shown below An open drain collector driver or button can be used to control the RESET_N pin Reset pulse RESET_N 4 7K 47K Figure 11 Reference Circuit of RESET_N by Using Dri...

Страница 28: ...s DCE Data Communication Equipment following the traditional DCE DTE Data Terminal Equipment connection Table 12 Pin Definition of UART Interfaces Interface Pin Name Pin No Description Comment Main UA...

Страница 29: ...mode The figure below shows the connection between DCE and DTE MAIN_TXD MAIN_RXD TXD RXD Module DCE Serial port Main port GND GND DTE Figure 14 Reference Design for Main UART Interface 3 8 2 Debug UA...

Страница 30: ...ce 3 8 4 UART Application The module provides 1 8 V UART interfaces A level translator should be used if the application is equipped with a 3 3 V UART interface A level translator TXS0108EPWR provided...

Страница 31: ..._RXD AUX_TXD RI MAIN_TXD MAIN_RXD Figure 18 Reference Circuit with Transistor Circuit The following circuit shows a reference design for the communication between the module and a PC with standard RS...

Страница 32: ...rading and debugging when necessary 3 Please note that the module CTS is connected to the host CTS and the module RTS is connected to the host RTS 3 9 USIM Interface The module provides a USIM interfa...

Страница 33: ...d of module and that of USIM card connector is short and wide Keep the trace width of ground no less than 0 5 mm to maintain the same electric potential The decoupling capacitor between USIM_VDD and G...

Страница 34: ...w for at least 120 ms RI HIGH LOW URC Output Idle 120 ms Figure 21 RI Timing When a URC Is Received 3 12 Network Status Indication The NETLIGHT pin can be used to indicate the network status of the mo...

Страница 35: ..._Hardware_Design 34 55 A reference circuit is shown as below Module NETLIGHT 4 7K 47K 2 2K VBAT Figure 22 Reference Design for NETLIGHT 64 ms High LED On 800 ms Low LED OFF Network searching 64 ms Hig...

Страница 36: ...in Definition of the NB IoT Antenna Interface 4 1 1 Operating Bands Table 17 Module Operating Bands Pin Name Pin No Description ANT_RF 35 Antenna interface GND 34 36 37 Ground Frequency Band Receiving...

Страница 37: ...rve a type matching circuit and place the type matching components R1 C1 C2 as close to the antenna as possible By default the capacitors C1 C2 are not mounted and a 0 resistor is mounted on R1 Refere...

Страница 38: ...ic constant the height from the reference ground to the signal layer H and the spacing between RF trace and ground S Microstrip or coplanar waveguide is typically used in RF layout for characteristic...

Страница 39: ...s should not be designed as thermal relief pads and should be fully connected to ground The distance between the RF pins and the RF connector should be as short as possible and all the right angle tra...

Страница 40: ...mended RF Connector for Antenna Installation If RF connector is used for antenna connection it is recommended to use the U FL R SMT connector provided by HIROSE Figure 28 Dimensions of the U FL R SMT...

Страница 41: ...connectors listed in the following figure can be used to match the U FL R SMT Figure 29 Mechanicals of U FL LP Connectors The following figure describes the space factor of mated connector Figure 30...

Страница 42: ...ature range the module keeps the ability to establish and maintain functions such as SMS and data transmission etc without any unrecoverable malfunction Radio spectrum and radio network will not be in...

Страница 43: ...wer Supply Parameter Mode Description Band Typ Unit IVBAT Deep Sleep Deep Sleep state 4 0 A Idle mode DRX 2 56 s ECL0 1 0 mA Active mode Single tone 3 75 15 kHz Radio transmission 23 dBm B1 TBD mA B3...

Страница 44: ...transmission Throughput 95 Active mode Multi tone 15 kHz Radio transmission 23 dBm B1 TBD mA B3 280 mA B5 280 mA B8 280 mA B20 280 mA B28 280 mA Band Max RF Output Power Min RF Output Power B1 TBD TBD...

Страница 45: ...packaging procedures must be applied throughout the processing handling and operation of any application that incorporates the module The following table shows the module s electrostatic discharge ch...

Страница 46: ...cal Dimensions This chapter describes the mechanical dimensions of the module All dimensions are measured in millimetre mm and dimensional tolerances are 0 05 mm unless otherwise specified 6 1 Mechani...

Страница 47: ...IoT Module Series BC65 Hardware Design BC65_Hardware_Design 46 55 Figure 32 Module Bottom Dimension Bottom View Unit mm The package warpage level of the module conforms to the JEITA ED 7306 standard N...

Страница 48: ...ign BC65_Hardware_Design 47 55 6 2 Recommended Footprint 1 14 23 36 Figure 33 Recommended Footprint Top View Unit mm For easy maintenance of the module keep about 3 mm between the module and other com...

Страница 49: ...p and Bottom Views of the Module Figure 34 Top View of the Module Figure 35 Bottom View of the Module Images above are for illustration purpose only and may differ from the actual module For authentic...

Страница 50: ...ule must be processed in reflow soldering or other high temperature operations within 168 hours Otherwise the module should be stored in an environment where the relative humidity is less than 10 e g...

Страница 51: ...he squeegee to apply the solder paste on the surface of stencil thus making the paste fill the stencil openings and then penetrate to the PCB The force on the squeegee should be adjusted properly to p...

Страница 52: ...erial that may chemically react with the PCB or shielding cover and prevent the coating material from flowing into the module 7 3 Packaging The modules are stored in a vacuum sealed bag which is ESD p...

Страница 53: ...NB IoT Module Series BC65 Hardware Design BC65_Hardware_Design 52 55 Figure 37 Tape Dimensions Unit mm Figure 38 Reel Dimensions Unit mm...

Страница 54: ...lication_Note RF Layout Application Note 4 Quectel_Module_Secondary_SMT_User_Guide Module Secondary SMT User Guide Abbreviation Description ADC Analog to Digital Converter CPU Central Processing Unit...

Страница 55: ...ng Term Evolution MQTT Message Queuing Telemetry Transport NB IoT Narrow Band Internet of Things PA Power Amplifier PCB Printed Circuit Board PDU Protocol Data Unit PMU Power Management Unit PSRAM Pse...

Страница 56: ...io Vmax Maximum Voltage Value Vnorm Normal Voltage Value Vmin Minimum Voltage Value VIHmax Maximum Input High Level Voltage Value VIHmin Minimum Input High Level Voltage Value VILmax Maximum Input Low...

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