Manual Do Utilizadoríndice analíticoContents7List of Figures12List of Tables14References16Reference Documents16Sierra Wireless Reference Documentation16List of Abbreviations16General Description20General Information20Overall Dimensions20Environment and Mechanics20GSM/GPRS Features20Interfaces20Firmware21Connection Interfaces21Functional Description22RF Functionalities22Baseband Functionalities23Interfaces24General Interfaces24Power Supply25Power Supply Description25Electrical Characteristics26Pin Description26Application26Recommended Components27Power Consumption28Various Operating Modes28Power Consumption29Consumption Waveform Samples30Connected Mode Current Waveform31Transfer Mode Class 10 Current Waveform31Idle Mode Page 2 Current Waveform32Idle Mode Page 9 Current Waveform32Recommendations for Less Consumption33Electrical Information for Digital I/O34SPI Bus for Debug Trace ONLY35Pin Description35SPI Waveforms35Main Serial Link (UART)38Features38Pin Description385-wire serial interface hardware design:394-wire serial interface hardware design:392-wire serial interface hardware design:39Application40V24/CMOS possible design41SIM Interface44Features44Pin Description45Application46SIM socket connection46General Purpose Input/Output47Pin Description47Analog to Digital Converter48Features48Pin Description48Analog Audio Interface49Microphone Features49Electrical Characteristics49Speaker Features50Speakers Outputs Power50SPK Outputs51Pin Description51Application52Microphone52Microphone Differential Connection Example52Recommended Components53Microphone Single-Ended Connection Example53Recommended Components55Speaker SPKP and SPKN56SPK Differential Connection56SPK Single-Ended Connection56Design Recommendation56General56Recommended Microphone Characteristics57Recommended Speaker Characteristics57Recommended Filtering Components57Audio Track and PCB Layout Recommendation59Pulse-Width Modulators (PWMs)62Features62Pin Description62Application62BUZZER Output64Features64Pin Description64Application65Calculations of the Low Filter:66Recommended characteristics for the buzzer66ON/~OFF Signal67Features67Pin Description67Application68Power ON68Power OFF69Software power off69Hardware power off69WISMO_READY Indication71Features71Pin Description71VCC_2V8 output72Features72Pin Description72Application72BAT-RTC (Backup Battery)73Features73Pin Description73Application73Super Capacitor74Non-Rechargeable Battery74Rechargeable Battery Cell75TX_CTRL Signal for TX Burst Indication76Features76Pin Description77Application77Reset78Feature78Sequence after an external reset event (~RESET)78Pin Description78Application79RF Interface80RF Connection80RF Performances80Antenna Specifications80Consumption Measurement Procedure83Hardware Configuration83Equipment83WISMO218 Development Kit85Socket-Up Board Used86SIM Cards Used86Software Configurations87WISMO218 Configuration87Equipment Configuration88Template89Technical Specifications90Castellation Connector Pin Configuration90Castellation Pin91Pin-Out Description91Recommended Connection When Not Used93PCB Specification for Application Board94Environmental Specifications95Function Status Classification95Class A95Class B95Mechanical Specifications97Physical Characteristics97WISMO218 Dimensions98Recommended PCB Landing Pattern100Peripheral Devices References101General Purpose Connector101SIM Card Reader101Microphone101Speaker101Antenna Cable101GSM Antenna102Noises and Design103EMC Recommendations103Power Supply103Appendix104Standards and Recommendations104Safety Recommendations (for Information Only)107RF Safety107General107Exposure to RF Energy107Efficient Terminal Operation107Antenna Care and Replacement107General Safety108Driving108Electronic Devices108Vehicle Electronic Equipment108Medical Electronic Equipment108Aircraft108Children109Blasting Areas109Potentially Explosive Atmospheres109Tamanho: 4 MBPáginas: 110Language: EnglishAbrir o manual