SNOSCZ9A May   2016  – October 2024 FDC2112-Q1 , FDC2114-Q1 , FDC2212-Q1 , FDC2214-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Timing Requirements
    7. 5.7 Switching Characteristics - I2C
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagrams
    3. 6.3 Feature Description
      1. 6.3.1 Clocking Architecture
      2. 6.3.2 Multi-Channel and Single-Channel Operation
      3. 6.3.3 Current Drive Control Registers
      4. 6.3.4 Device Status Registers
      5. 6.3.5 Input Deglitch Filter
    4. 6.4 Device Functional Modes
      1. 6.4.1 Start-Up Mode
      2. 6.4.2 Normal (Conversion) Mode
      3. 6.4.3 Sleep Mode
      4. 6.4.4 Shutdown Mode
        1. 6.4.4.1 Reset
    5. 6.5 Programming
      1. 6.5.1 I2C Interface Specifications
    6. 6.6 Register Maps
      1. 6.6.1  Register List
      2. 6.6.2  Address 0x00, DATA_CH0
      3. 6.6.3  Address 0x01, DATA_LSB_CH0 (FDC2212 / FDC2214 only)
      4. 6.6.4  Address 0x02, DATA_CH1
      5. 6.6.5  Address 0x03, DATA_LSB_CH1 (FDC2212 / FDC2214 only)
      6. 6.6.6  Address 0x04, DATA_CH2 (FDC2114, FDC2214 only)
      7. 6.6.7  Address 0x05, DATA_LSB_CH2 (FDC2214 only)
      8. 6.6.8  Address 0x06, DATA_CH3 (FDC2114, FDC2214 only)
      9. 6.6.9  Address 0x07, DATA_LSB_CH3 (FDC2214 only)
      10. 6.6.10 Address 0x08, RCOUNT_CH0
      11. 6.6.11 Address 0x09, RCOUNT_CH1
      12. 6.6.12 Address 0x0A, RCOUNT_CH2 (FDC2114, FDC2214 only)
      13. 6.6.13 Address 0x0B, RCOUNT_CH3 (FDC2114, FDC2214 only)
      14. 6.6.14 Address 0x0C, OFFSET_CH0 (FDC21112 / FDC2114 only)
      15. 6.6.15 Address 0x0D, OFFSET_CH1 (FDC21112 / FDC2114 only)
      16. 6.6.16 Address 0x0E, OFFSET_CH2 (FDC2114 only)
      17. 6.6.17 Address 0x0F, OFFSET_CH3 (FDC2114 only)
      18. 6.6.18 Address 0x10, SETTLECOUNT_CH0
      19. 6.6.19 Address 0x11, SETTLECOUNT_CH1
      20. 6.6.20 Address 0x12, SETTLECOUNT_CH2 (FDC2114, FDC2214 only)
      21. 6.6.21 Address 0x13, SETTLECOUNT_CH3 (FDC2114, FDC2214 only)
      22. 6.6.22 Address 0x14, CLOCK_DIVIDERS_CH0
      23. 6.6.23 Address 0x15, CLOCK_DIVIDERS_CH1
      24. 6.6.24 Address 0x16, CLOCK_DIVIDERS_CH2 (FDC2114, FDC2214 only)
      25. 6.6.25 Address 0x17, CLOCK_DIVIDERS_CH3 (FDC2114, FDC2214 only)
      26. 6.6.26 Address 0x18, STATUS
      27. 6.6.27 Address 0x19, ERROR_CONFIG
      28. 6.6.28 Address 0x1A, CONFIG
      29. 6.6.29 Address 0x1B, MUX_CONFIG
      30. 6.6.30 Address 0x1C, RESET_DEV
      31. 6.6.31 Address 0x1E, DRIVE_CURRENT_CH0
      32. 6.6.32 Address 0x1F, DRIVE_CURRENT_CH1
      33. 6.6.33 Address 0x20, DRIVE_CURRENT_CH2 (FDC2114 / FDC2214 only)
      34. 6.6.34 Address 0x21, DRIVE_CURRENT_CH3 (FDC2114 / FDC2214 only)
      35. 6.6.35 Address 0x7E, MANUFACTURER_ID
      36. 6.6.36 Address 0x7F, DEVICE_ID
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Sensor Configuration
      2. 7.1.2 Shield
      3. 7.1.3 Power-Cycled Applications
      4. 7.1.4 Inductor Self-Resonant Frequency
      5. 7.1.5 Application Curves for Proximity Sensing
    2. 7.2 Typical Application
      1. 7.2.1 Design Requirements
      2. 7.2.2 Detailed Design Procedure
        1. 7.2.2.1 Recommended Initial Register Configuration Values
      3. 7.2.3 Application Curve
    3. 7.3 Best Design Practices
    4. 7.4 Power Supply Recommendations
    5. 7.5 Layout
      1. 7.5.1 Layout Guidelines
      2. 7.5.2 Layout Examples
  9. 8 Device and Documentation Support
    1. 8.1 Device Support
      1. 8.1.1 Development Support
    2. 8.2 Documentation Support
      1. 8.2.1 Related Documentation
    3. 8.3 Receiving Notification of Documentation Updates
    4. 8.4 Support Resources
    5. 8.5 Trademarks
    6. 8.6 Electrostatic Discharge Caution
    7. 8.7 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

6.3.5 Input Deglitch Filter

The input deglitch filter suppresses EMI and ringing above the sensor frequency. The input deglitch filter does not impact the conversion result as long as its bandwidth is configured to be above the maximum sensor frequency. The input deglitch filter can be configured in MUX_CONFIG.DEGLITCH register field as shown in Table 6-9. For optimal performance, TI recommends selection of the lowest setting that exceeds the sensor oscillation frequency. For example, if the maximum sensor frequency is 2MHz, choose MUX_CONFIG.DEGLITCH = b100 (3.3MHz).

Table 6-9 Input Deglitch Filter Register
CHANNEL(1)MUX_CONFIG.DEGLITCH (addr 0x1B) REGISTER VALUEDEGLITCH FREQUENCY
ALL0011MHz
ALL1003.3MHz
ALL10110MHz
ALL01133MHz
(1) Channels 2 and 3 are available for FDC2114 / FDC2214 only.