AS3935 Datasheet EN V2

2017-09-29

• 1 General Description
• 2 Key Features
• 3 Applications
• 4 Pin Assignments
  • 4.1 Pin Descriptions
• 5 Absolute Maximum Ratings
• 6 Electrical Characteristics
  • 6.1 Operating Conditions
  • 6.2 DC/AC Characteristics for Digital Inputs and Outputs
  • 6.3 Detailed System and Block Specification
• 7 Typical Operating Characteristics
• 8 Detailed Description
  • 8.1 Circuit
  • 8.2 Operating Modes
  • 8.3 System and Block Specification
    • 8.3.1 Register Table
    • 8.3.2 Register Table Description and Default Value
  • 8.4 Serial Peripheral Interface (SPI)
    • 8.4.1 SPI Command Structure
    • 8.4.2 Writing of Register Data
    • 8.4.3 Reading of Data from Addressable Registers (READ Mode)
    • 8.4.4 Send Direct Command Byte
  • 8.5 I²C
    • 8.5.1 I²C Byte Write
    • 8.5.2 I²C Register Read
    • 8.5.3 Direct Command
  • 8.6 Voltage Regulator
  • 8.7 Analog Front-end (AFE) and Watchdog
  • 8.8 Noise Floor Generator and Evaluation
  • 8.9 Lightning Algorithm
    • 8.9.1 Signal Validation
    • 8.9.2 Energy Calculation
    • 8.9.3 Statistical Distance Estimation
    • 8.9.4 Interrupt Management
  • 8.10 Antenna Tuning
  • 8.11 Clock Generation
• 9 Package Drawings and Markings
• 10 Ordering Information