사용자 설명서차례Contents3Tables6Figures71 Introduction91.1 Key Features at a Glance91.2 ELS61-USA System Overview121.3 Circuit Concept132 Interface Characteristics152.1 Application Interface152.1.1 Pad Assignment152.1.2 Signal Properties172.1.2.1 Absolute Maximum Ratings232.1.3 USB Interface242.1.3.1 Reducing Power Consumption252.1.4 Serial Interface ASC0262.1.5 Serial Interface ASC1282.1.6 UICC/SIM/USIM Interface302.1.6.1 Enhanced ESD Protection for SIM Interface322.1.7 Digital Audio Interface (DAI)332.1.7.1 Pulse Code Modulation Interface (PCM)332.1.7.2 Inter IC Sound Interface352.1.7.3 Solutions for the Digital Audio Interface362.1.7.4 Electrical Characteristics of the Voiceband Part372.1.8 RTC Backup392.1.9 GPIO Interface402.1.10 I2C Interface422.1.11 SPI Interface442.1.12 PWM Interfaces452.1.13 Pulse Counter452.1.14 Control Signals452.1.14.1 Status LED452.1.14.2 Power Indication Circuit462.1.14.3 Host Wakeup462.1.14.4 Fast Shutdown472.2 RF Antenna Interface482.2.1 Antenna Interface Specifications482.2.2 Antenna Installation502.2.3 RF Line Routing Design512.2.3.1 Line Arrangement Examples512.2.3.2 Routing Example562.3 Sample Application572.3.1 Sample Level Conversion Circuit593 Operating Characteristics603.1 Operating Modes603.2 Power Up/Power Down Scenarios613.2.1 Turn on ELS61-USA613.2.1.1 Connecting ELS61-USA BATT+ Lines613.2.1.2 Switch on ELS61-USA Using ON Signal633.2.1.3 Automatic Power On643.2.2 Restart ELS61-USA653.2.2.1 Restart ELS61-USA via AT+CFUN Command653.2.2.2 Restart ELS61-USA Using EMERG_RST663.2.3 Signal States after Startup673.2.4 Turn off ELS61-USA683.2.4.1 Switch off ELS61-USA Using AT Command683.2.5 Automatic Shutdown703.2.5.1 Thermal Shutdown703.2.5.2 Undervoltage Shutdown713.2.5.3 Overvoltage Shutdown713.3 Power Saving723.3.1 Power Saving while Attached to WCDMA Networks723.3.2 Power Saving while Attached to LTE Networks733.3.3 Wake-up via RTS0743.4 Power Supply753.4.1 Power Supply Ratings753.4.2 Measuring the Supply Voltage (VBATT+)783.4.3 Monitoring Power Supply by AT Command783.5 Operating Temperatures793.6 Electrostatic Discharge803.6.1 ESD Protection for Antenna Interfaces803.7 Blocking against RF on Interface Lines813.8 Reliability Characteristics834 Mechanical Dimensions, Mounting and Packaging844.1 Mechanical Dimensions of ELS61-USA844.2 Mounting ELS61-USA onto the Application Platform864.2.1 SMT PCB Assembly864.2.1.1 Land Pattern and Stencil864.2.1.2 Board Level Characterization884.2.2 Moisture Sensitivity Level884.2.3 Soldering Conditions and Temperature894.2.3.1 Reflow Profile894.2.3.2 Maximum Temperature and Duration904.2.4 Durability and Mechanical Handling914.2.4.1 Storage Conditions914.2.4.2 Processing Life924.2.4.3 Baking924.2.4.4 Electrostatic Discharge924.3 Packaging934.3.1 Tape and Reel934.3.1.1 Orientation934.3.1.2 Barcode Label944.3.2 Shipping Materials954.3.2.1 Moisture Barrier Bag954.3.2.2 Transportation Box974.3.3 Trays985 Regulatory and Type Approval Information995.1 Directives and Standards995.2 SAR requirements specific to portable mobiles1025.3 Reference Equipment for Type Approval1035.4 Compliance with FCC and IC Rules and Regulations1046 Document Information1066.1 Revision History1066.2 Related Documents1066.3 Terms and Abbreviations1066.4 Safety Precaution Notes1107 Appendix1117.1 List of Parts and Accessories111크기: 1.63메가바이트페이지: 113Language: English매뉴얼 열기