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LTE Module cat 4.

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  • 日期: 2018-07-23
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标签: LTEModulecat4.

LTE Module cat 4.

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EC25 Hardware Design LTE Module Series Rev EC25HardwareDesignV10 Date 20160401 wwwquectelcom LTE Module Series EC25 Hardware Design Our aim is to provide customers with timely and comprehensive service For any assistance please contact our company headquarters Quectel Wireless Solutions Co Ltd Office 501 Building 13 No99 Tianzhou Road Shanghai Chin......

EC25 Hardware Design LTE Module Series Rev. EC25_Hardware_Design_V1.0 Date: 2016-04-01 www.quectel.com LTE Module Series EC25 Hardware Design Our aim is to provide customers with timely and comprehensive service. For any assistance, please contact our company headquarters: Quectel Wireless Solutions Co., Ltd. Office 501, Building 13, No.99, Tianzhou Road, Shanghai, China, 200233 Tel: +86 21 5108 6236 Email: info@quectel.com Or our local office. For more information, please visit: http://www.quectel.com/support/salesupport.aspx For technical support, or to report documentation errors, please visit: http://www.quectel.com/support/techsupport.aspx Or email to: Support@quectel.com GENERAL NOTES QUECTEL OFFERS THE INFORMATION AS A SERVICE TO ITS CUSTOMERS. THE INFORMATION PROVIDED IS BASED UPON CUSTOMERS’ REQUIREMENTS. QUECTEL MAKES EVERY EFFORT TO ENSURE THE QUALITY OF THE INFORMATION AVAILABLE. QUECTEL DOES NOT MAKE ANY WARRANTY AS TO THE INFORMATION CONTAINED HEREIN, AND DOES NOT ACCEPT ANY LIABILITY FOR ANY INJURY, LOSS OR DAMAGE OF ANY KIND INCURRED BY USE OF OR RELIANCE UPON THE INFORMATION. THE INFORMATION SUPPLIED HEREIN IS SUBJECT TO CHANGE WITHOUT PRIOR NOTICE. COPYRIGHT THE INFORMATION CONTAINED HERE IS PROPRIETARY TECHNICAL INFORMATION OF QUECTEL CO., LTD. TRANSMITTING, REPRODUCTION, DISSEMINATION AND EDITING OF THIS DOCUMENT AS WELL AS UTILIZATION OF THE CONTENT ARE FORBIDDEN WITHOUT PERMISSION. OFFENDERS WILL BE HELD LIABLE FOR PAYMENT OF DAMAGES. ALL RIGHTS ARE RESERVED IN THE EVENT OF A PATENT GRANT OR REGISTRATION OF A UTILITY MODEL OR DESIGN. Copyright © Quectel Wireless Solutions Co., Ltd. 2016. All rights reserved. EC25_Hardware_Design Confidential / Released 1 / 71 LTE Module Series EC25 Hardware Design About the Document History Revision Date Author Description V1.0 2016-04-01 Woody WU Initial EC25_Hardware_Design Confidential / Released 2 / 71 LTE Module Series EC25 Hardware Design Contents About the Document ................................................................................................................................... 2 Contents ....................................................................................................................................................... 3 Table Index ................................................................................................................................................... 5 Figure Index ................................................................................................................................................. 6 1 Introduction .......................................................................................................................................... 7 1.1. Safety Information...................................................................................................................... 7 2 Product Concept .................................................................................................................................. 9 2.1. General Description ................................................................................................................... 9 Key Features ........................................................................................................................... 10 2.2. 2.3. Functional Diagram ................................................................................................................. 12 Evaluation Board ..................................................................................................................... 13 2.4. 3.6. 3 Application Interface ......................................................................................................................... 14 3.1. General Description ................................................................................................................. 14 Pin Assignment ........................................................................................................................ 14 3.2. 3.3. Pin Description ......................................................................................................................... 16 3.4. Operating Modes ..................................................................................................................... 21 3.5. Power Saving ........................................................................................................................... 22 3.5.1. Sleep Mode .................................................................................................................... 22 3.5.1.1. UART Application ................................................................................................. 22 3.5.1.2. USB Application with USB Remote Wakeup Function ........................................ 23 3.5.1.3. USB Application with USB Suspend/Resume and RI Function .......................... 23 3.5.1.4. USB Application without USB Suspend Function ................................................ 24 3.5.2. Airplane Mode ................................................................................................................ 25 Power Supply ........................................................................................................................... 25 3.6.1. Power Supply Pins ......................................................................................................... 25 3.6.2. Decrease Voltage Drop .................................................................................................. 26 3.6.3. Reference Design for Power Supply .............................................................................. 27 3.6.4. Monitor the Power Supply .............................................................................................. 28 Turn on and off Scenarios ....................................................................................................... 28 Turn on Module Using the PWRKEY ............................................................................. 28 Turn off Module .............................................................................................................. 30 Turn off Module Using the PWRKEY Pin ............................................................. 30 Turn off Module Using AT Command ................................................................... 30 3.8. Reset the Module..................................................................................................................... 30 3.9. USIM Card Interface ................................................................................................................ 32 3.10. USB Interface .......................................................................................................................... 34 3.11. UART Interface ........................................................................................................................ 36 3.12. PCM and I2C Interface ............................................................................................................ 38 3.13. ADC Function .......................................................................................................................... 41 3.14. Network Status Indication ........................................................................................................ 41 3.7.2.1. 3.7.2.2. 3.7. 3.7.1. 3.7.2. EC25_Hardware_Design Confidential / Released 3 / 71 LTE Module Series EC25 Hardware Design 3.15. STATUS ................................................................................................................................... 42 3.16. Behavior of the RI .................................................................................................................... 43 4 GNSS Receiver ................................................................................................................................... 45 4.1. General Description ................................................................................................................. 45 4.2. GNSS Performance ................................................................................................................. 45 4.3. Layout Guideline ...................................................................................................................... 46 5 Antenna Interface ............................................................................................................................... 47 5.1. Main/Rx-diversity Antenna Interface ........................................................................................ 47 5.1.1. Pin Definition .................................................................................................................. 47 5.1.2. Operating Frequency ..................................................................................................... 47 5.1.3. Reference Design .......................................................................................................... 48 5.2. GNSS Antenna Interface ......................................................................................................... 49 5.3. Antenna Installation ................................................................................................................. 50 5.3.1. Antenna Requirement .................................................................................................... 50 5.3.2. Install the Antenna with RF Connector .......................................................................... 51 6 Electrical, Reliability and Radio Characteristics ............................................................................ 54 Absolute Maximum Ratings ..................................................................................................... 54 6.1. 6.2. Power Supply Ratings ............................................................................................................. 54 6.3. Operating Temperature ............................................................................................................ 55 Current Consumption .............................................................................................................. 55 6.4. RF Output Power ..................................................................................................................... 55 6.5. 6.6. RF Receiving Sensitivity .......................................................................................................... 56 Electrostatic Discharge ............................................................................................................ 56 6.7. 7 Mechanical Dimensions .................................................................................................................... 58 7.1. Mechanical Dimensions of the Module.................................................................................... 58 Footprint of Recommendation ................................................................................................. 60 7.2. Top View of the Module ........................................................................................................... 61 7.3. 7.4. Bottom View of the Module ...................................................................................................... 61 8 Storage and Manufacturing .............................................................................................................. 62 Storage .................................................................................................................................... 62 8.1. 8.2. Manufacturing and Welding ..................................................................................................... 62 8.3. Packaging ................................................................................................................................ 63 9 Appendix A Reference ....................................................................................................................... 65 10 Appendix B GPRS Coding Scheme ................................................................................................. 69 11 Appendix C GPRS Multi-slot Class .................................................................................................. 70 12 Appendix D EDGE Modulation and Coding Scheme ..................................................................... 71 EC25_Hardware_Design Confidential / Released 4 / 71
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