Document Outline

• Contents
• List of Figures
• List of Tables
• References
  • Reference Documents
    • Sierra Wireless Reference Documentation
  • List of Abbreviations
• General Description
  • General Information
    • Overall Dimensions
    • Environment and Mechanics
    • GSM/GPRS Features
    • Interfaces
    • Firmware
    • Connection Interfaces
  • Functional Description
    • RF Functionalities
    • Baseband Functionalities
• Interfaces
  • General Interfaces
  • Power Supply
    • Power Supply Description
    • Electrical Characteristics
    • Pin Description
    • Application
      • Recommended Components
  • Power Consumption
    • Various Operating Modes
    • Power Consumption
    • Consumption Waveform Samples
      • Connected Mode Current Waveform
      • Transfer Mode Class 10 Current Waveform
      • Idle Mode Page 2 Current Waveform
      • Idle Mode Page 9 Current Waveform
    • Recommendations for Less Consumption
  • Electrical Information for Digital I/O
  • SPI Bus for Debug Trace ONLY
    • Pin Description
      • SPI Waveforms
  • Main Serial Link (UART)
    • Features
    • Pin Description
      • 5-wire serial interface hardware design:
      • 4-wire serial interface hardware design:
      • 2-wire serial interface hardware design:
    • Application
      • V24/CMOS possible design
  • SIM Interface
    • Features
    • Pin Description
    • Application
      • SIM socket connection
  • General Purpose Input/Output
    • Pin Description
  • Analog to Digital Converter
    • Features
    • Pin Description
  • Analog Audio Interface
    • Microphone Features
      • Electrical Characteristics
    • Speaker Features
      • Speakers Outputs Power
        • SPK Outputs
    • Pin Description
    • Application
      • Microphone
        • Microphone Differential Connection Example
      • Recommended Components
        • Microphone Single-Ended Connection Example
      • Recommended Components
      • Speaker SPKP and SPKN
        • SPK Differential Connection
        • SPK Single-Ended Connection
    • Design Recommendation
      • General
      • Recommended Microphone Characteristics
      • Recommended Speaker Characteristics
      • Recommended Filtering Components
      • Audio Track and PCB Layout Recommendation
  • Pulse-Width Modulators (PWMs)
    • Features
    • Pin Description
    • Application
  • BUZZER Output
    • Features
    • Pin Description
    • Application
      • Calculations of the Low Filter:
      • Recommended characteristics for the buzzer
  • ON/~OFF Signal
    • Features
    • Pin Description
    • Application
      • Power ON
      • Power OFF
        • Software power off
        • Hardware power off
  • WISMO_READY Indication
    • Features
    • Pin Description
  • VCC_2V8 output
    • Features
    • Pin Description
    • Application
  • BAT-RTC (Backup Battery)
    • Features
    • Pin Description
    • Application
      • Super Capacitor
      • Non-Rechargeable Battery
      • Rechargeable Battery Cell
  • TX_CTRL Signal for TX Burst Indication
    • Features
    • Pin Description
    • Application
  • Reset
    • Feature
      • Sequence after an external reset event (~RESET)
    • Pin Description
    • Application
  • RF Interface
    • RF Connection
    • RF Performances
    • Antenna Specifications
• Consumption Measurement Procedure
  • Hardware Configuration
    • Equipment
    • WISMO218 Development Kit
    • Socket-Up Board Used
    • SIM Cards Used
  • Software Configurations
    • WISMO218 Configuration
    • Equipment Configuration
  • Template
• Technical Specifications
  • Castellation Connector Pin Configuration
  • Castellation Pin
    • Pin-Out Description
    • Recommended Connection When Not Used
  • PCB Specification for Application Board
  • Environmental Specifications
    • Function Status Classification
      • Class A
      • Class B
  • Mechanical Specifications
    • Physical Characteristics
    • WISMO218 Dimensions
    • Recommended PCB Landing Pattern
• Peripheral Devices References
  • General Purpose Connector
  • SIM Card Reader
  • Microphone
  • Speaker
  • Antenna Cable
  • GSM Antenna
• Noises and Design
  • EMC Recommendations
  • Power Supply
• Appendix
  • Standards and Recommendations
  • Safety Recommendations (for Information Only)
    • RF Safety
      • General
      • Exposure to RF Energy
      • Efficient Terminal Operation
      • Antenna Care and Replacement
    • General Safety
      • Driving
      • Electronic Devices
      • Vehicle Electronic Equipment
      • Medical Electronic Equipment
      • Aircraft
      • Children
      • Blasting Areas
      • Potentially Explosive Atmospheres