JAJSJ79A August   2023  – December 2023 OPT4003-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  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 Timing Diagram
    8. 5.8 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram
    3. 6.3 Feature Description
      1. 6.3.1 Spectral Response
        1. 6.3.1.1 Channel 0: Human Eye Matching
        2. 6.3.1.2 Channel 1: Near Infrared
      2. 6.3.2 Automatic Full-Scale Range Setting
      3. 6.3.3 Error Correction Code (ECC) Features
        1. 6.3.3.1 Output Sample Counter
        2. 6.3.3.2 Output CRC
        3. 6.3.3.3 Threshold Detection
    4. 6.4 Device Functional Modes
      1. 6.4.1 Modes of Operation
      2. 6.4.2 Interrupt Modes of Operation
      3. 6.4.3 Light Range Selection
      4. 6.4.4 Selecting Conversion Time
      5. 6.4.5 Light Measurement in Lux
      6. 6.4.6 Threshold Detection Calculations
      7. 6.4.7 Light Resolution
    5. 6.5 Programming
      1. 6.5.1 I2C Bus Overview
        1. 6.5.1.1 Serial Bus Address
        2. 6.5.1.2 Serial Interface
      2. 6.5.2 Writing and Reading
        1. 6.5.2.1 High-Speed I2C Mode
        2. 6.5.2.2 Burst Read Mode
        3. 6.5.2.3 General-Call Reset Command
        4. 6.5.2.4 SMBus Alert Response
  8. 7 Register Maps
    1. 7.1 Register Descriptions
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Electrical Interface
        1. 8.2.1.1 Design Requirements
          1. 8.2.1.1.1 Optical Interface
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Optomechanical Design
        3. 8.2.1.3 Application Curves
    3. 8.3 Best Design Practices
    4. 8.4 Power Supply Recommendations
    5. 8.5 Layout
      1. 8.5.1 Layout Guidelines
        1. 8.5.1.1 Soldering and Handling Recommendations
      2. 8.5.2 Layout Example
  10. 9 デバイスおよびドキュメントのサポート
    1. 9.1 ドキュメントのサポート
      1. 9.1.1 関連資料
    2. 9.2 ドキュメントの更新通知を受け取る方法
    3. 9.3 サポート・リソース
    4. 9.4 商標
    5. 9.5 静電気放電に関する注意事項
    6. 9.6 用語集
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6.4.7 Light Resolution

The effective resolution of the OPT4003-Q1 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 (as per Table 6-5) on the conversion time setting and the full-scale range. In conversion times where the effective resolution is lower, the LSBs are padded with 0.

Table 6-5 Resolution Table
CONVERSION_TIME REGISTER CONVERSION TIME MANTISSA EFFECTIVE BITS EXPONENT
0 1 2 3 4 5 6 7 8
FULL-SCALE LUX (Effective Resolution in Lux)
561 1122 2244 4488 8976 17952 35903 71806 143613
0 600 µs 9 1.096 2.191 4.38 8.77 17.53 35.06 70.12 140.25 280.49
1 1 ms 10 547.84 m 1.096 2.191 4.38 8.77 17.53 35.06 70.12 140.25
2 1.8 ms 11 273.92 m 547.84 m 1.096 2.191 4.38 8.77 17.53 35.06 70.12
3 3.4 ms 12 136.96 m 273.92 m 547.84 m 1.096 2.191 4.38 8.77 17.53 35.06
4 6.5 ms 13 68.48 m 136.96 m 273.92 m 547.84 m 1.096 2.191 4.38 8.77 17.53
5 12.7 ms 14 34.24 m 68.48 m 136.96 m 273.92 m 547.84 m 1.096 2.191 4.38 8.77
6 25 ms 15 17.12 m 34.24 m 68.48 m 136.96 m 273.92 m 547.84 m 1.096 2.191 4.38
7 50 ms 16 8.56 m 17.12 m 34.24 m 68.48 m 136.96 m 273.92 m 547.84 m 1.096 2.191
8 100 ms 17 4.28 m 8.56 m 17.12 m 34.24 m 68.48 m 136.96 m 273.92 m 547.84 m 1.096
9 200 ms 18 2.14 m 4.28 m 8.56 m 17.12 m 34.24 m 68.48 m 136.96 m 273.92 m 547.84 m
10 400 ms 19 1.07 m 2.14 m 4.28 m 8.56 m 17.12 m 34.24 m 68.48 m 136.96 m 273.92 m
11 800 ms 20 0.535 m 1.07 m 2.14 m 4.28 m 8.56 m 17.12 m 34.24 m 68.48 m 136.96 m