BenutzerhandbuchInhaltsverzeichnisIntroduction81.1 Overview82 Overall Description92.1 About This Chapter92.2 Function Overview92.3 Application Block Diagram112.4 Circuit Block Diagram113 Description of the Application Interfaces133.1 About This Chapter133.2 B2B Connector Interface133.3 Power Interface163.3.1 Overview163.3.2 VBAT Interface173.3.3 VCOIN Interface183.3.4 VIO Interface183.4 Power-On and Power-Off Time Sequence183.4.1 Overview183.4.2 Power-On Time Sequence193.4.3 Power-Off Time Sequence203.4.4 RESET203.5 Signal Control Interface203.5.1 Overview203.5.2 Input Signal Control Pins213.5.3 Output Signal Control Pin223.6 UART Interface233.6.1 Overview233.6.2 Circuit Recommended for the UART Interface243.7 SIM Card Interface253.7.1 Overview253.7.2 Circuit Recommended for the SIM Card Interface263.8 Audio Interface274 Antenna Interface294.1 About This Chapter294.2 Antenna Installation294.3 Coaxial Cable and RF Connector304.4 ESD Protection for the Antenna Interface324.5 RF Specifications of the Antenna Interface324.6 Specifications of the Antenna Interface345 Electrical and Reliability Features355.1 About This Chapter355.2 Extreme Working Conditions355.3 Operating and Storage Temperatures and Humidity365.4 Electrical Criteria of Application Interfaces365.5 Power Supply Features405.5.1 Input Power Supply405.5.2 Working Current405.6 Reliability Features425.7 ESD Features446 Mechanical Specifications456.1 Overview456.2 Dimensions456.3 Dimensions of the B2B Connector466.4 MG323 Module Installation Description486.5 Specification Selection for Fasteners507 Appendix A Circuits of Typical Interfaces528 Appendix B Acronyms and Abbreviations53Größe: 1,05 MBSeiten: 54Language: EnglishHandbuch öffnen