ZHCSLE3 June   2023 OPT4060

PRODUCTION DATA  

  1.   1
  2. 1 特性
  3. 2 应用
  4. 3 说明
  5. 4 Revision History
  6. 5 说明（续）
  7. 6 Pin Configuration and Functions
  8. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  9. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Infrared Light Rejection
      2. 8.3.2 Automatic Full-Scale Range Setting
      3. 8.3.3 Output Register CRC and Counter
        1. 8.3.3.1 Output Sample Counter
        2. 8.3.3.2 Output CRC
        3. 8.3.3.3 Threshold Detection
    4. 8.4 Device Functional Modes
      1. 8.4.1 Modes of Operation
      2. 8.4.2 Interrupt Modes of Operation
      3. 8.4.3 Light Range Selection
      4. 8.4.4 Selecting Conversion Time
      5. 8.4.5 Light and Color Measurement
        1. 8.4.5.1 Determining ADC Codes for Each Channel
        2. 8.4.5.2 Lux and Color Calculations
        3. 8.4.5.3 Threshold Detection Calculations
      6. 8.4.6 Light Resolution
    5. 8.5 Programming
      1. 8.5.1 I2C Bus Overview
        1. 8.5.1.1 Serial Bus Address
        2. 8.5.1.2 Serial Interface
      2. 8.5.2 Writing and Reading
        1. 8.5.2.1 High-Speed I2C Mode
        2. 8.5.2.2 Burst Read Mode
        3. 8.5.2.3 General-Call Reset Command
        4. 8.5.2.4 SMBus Alert Response
    6. 8.6 Register Maps
      1. 8.6.1 Register Map
  10. 9 Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Electrical Interface
        1. 9.2.1.1 Design Requirements
          1. 9.2.1.1.1 Optical Interface
        2. 9.2.1.2 Detailed Design Procedure
          1. 9.2.1.2.1 Optomechanical Design
        3. 9.2.1.3 Application Curve
    3. 9.3 Best Design Practices
    4. 9.4 Power Supply Recommendations
    5. 9.5 Layout
      1. 9.5.1 Layout Guidelines
      2. 9.5.2 Layout Example
      3. 9.5.3 Soldering and Handling Recommendations
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 接收文档更新通知
    3. 10.3 支持资源
    4. 10.4 Trademarks
    5. 10.5 静电放电警告
    6. 10.6 术语表
  12. 11Mechanical, Packaging, and Orderable Information

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.4.6 Light Resolution

The OPT4060 effective resolution is dependent on both the conversion time setting and the full-scale light range. Although the LSB resolution of the linear ADC_CODES does not change, the effective or useful resolution of the device is dependent on the conversion time setting and the full-scale range as per the table below. In conversion times where the effective resolution is lower, the LSBs are padded with 0.

Table 8-5 Resolution Table
CONVERSION_TIME REGISTER CONVERSION TIME MANTESSA EFFECTIVE BITS EXPONENT 0 1 2 3 4 5 6
FULL-SCALE LUX 2254 4509 9018 18036 36071 72142 144284
EFFECTIVE RESOLUTION IN LUX
0 600 us 9 4.4 8.8 17.6 35.2 70.45 140.9 281.8
1 1 ms 10 2.2 4.4 8.8 17.6 35.2 70.45 140.9
2 1.8 ms 11 1.1 2.2 4.4 8.8 17.6 35.2 70.45
3 3.4 ms 12 550.4 m 1.1 2.2 4.4 8.8 17.6 35.2
4 6.5 ms 13 275.2 m 550.4 m 1.1 2.2 4.4 8.8 17.6
5 12.7 ms 14 137.6 m 275.2 m 550.4 m 1.1 2.2 4.4 8.8
6 25 ms 15 68.8 m 137.6 m 275.2 m 550.4 m 1.1 2.2 4.4
7 50 ms 16 34.4 m 68.8 m 137.6 m 275.2 m 550.4 m 1.1 2.2
8 100 ms 17 17.2 m 34.4 m 68.8 m 137.6 m 275.2 m 550.4 m 1.1
9 200 ms 18 8.6 m 17.2 m 34.4 m 68.8 m 137.6 m 275.2 m 550.4 m
10 400 ms 19 4.30 m 8.6 m 17.2 m 34.4 m 68.8 m 137.6 m 275.2 m
11 800 ms 20 2.15 m 4.30 m 8.6 m 17.2 m 34.4 m 68.8 m 137.6 m

As shown in the table above, the resolution of the device is dependent on the CONVERSION_TIME and full-scale range. A similar scaling applies to the peak responsitivity for each channel.

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