JAJSD52A March   2017  – December 2018 OPT3001-Q1

PRODUCTION DATA.  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
    1.     ブロック図
    2.     スペクトル応答： OPT3001-Q1および肉眼
  4. 4 改訂履歴
  5. 5 概要（続き）
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 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 Timing Requirements
    7. 7.7 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Human Eye Matching
      2. 8.3.2 Automatic Full-Scale Range Setting
      3. 8.3.3 Interrupt Operation, INT Pin, and Interrupt Reporting Mechanisms
      4. 8.3.4 I2C Bus Overview
        1. 8.3.4.1 Serial Bus Address
        2. 8.3.4.2 Serial Interface
    4. 8.4 Device Functional Modes
      1. 8.4.1 Automatic Full-Scale Setting Mode
      2. 8.4.2 Interrupt Reporting Mechanism Modes
        1. 8.4.2.1 Latched Window-Style Comparison Mode
        2. 8.4.2.2 Transparent Hysteresis-Style Comparison Mode
        3. 8.4.2.3 End-of-Conversion Mode
        4. 8.4.2.4 End-of-Conversion and Transparent Hysteresis-Style Comparison Mode
    5. 8.5 Programming
      1. 8.5.1 Writing and Reading
        1. 8.5.1.1 High-Speed I2C Mode
        2. 8.5.1.2 General-Call Reset Command
        3. 8.5.1.3 SMBus Alert Response
    6. 8.6 Register Maps
      1. 8.6.1 Internal Registers
        1. 8.6.1.1 Register Descriptions
          1. 8.6.1.1.1 Result Register (offset = 00h)
            1. Table 7. Result Register Field Descriptions
          2. 8.6.1.1.2 Configuration Register (offset = 01h) [reset = C810h]
            1. Table 10. Configuration Register Field Descriptions
          3. 8.6.1.1.3 Low-Limit Register (offset = 02h) [reset = C0000h]
            1. Table 11. Low-Limit Register Field Descriptions
          4. 8.6.1.1.4 High-Limit Register (offset = 03h) [reset = BFFFh]
            1. Table 13. High-Limit Register Field Descriptions
          5. 8.6.1.1.5 Manufacturer ID Register (offset = 7Eh) [reset = 5449h]
            1. Table 14. Manufacturer ID Register Field Descriptions
          6. 8.6.1.1.6 Device ID Register (offset = 7Fh) [reset = 3001h]
            1. Table 15. Device ID Register Field Descriptions
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Electrical Interface
      2. 9.1.2 Optical Interface
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
        1. 9.2.2.1 Optomechanical Design
        2. 9.2.2.2 Dark Window Selection and Compensation
      3. 9.2.3 Application Curves
    3. 9.3 Do's and Don'ts
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12デバイスおよびドキュメントのサポート
    1. 12.1 ドキュメントのサポート
      1. 12.1.1 関連資料
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 コミュニティ・リソース
    4. 12.4 商標
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 Glossary
  13. 13メカニカル、パッケージ、および注文情報
    1. 13.1 ハンダ付けと取り扱いについての推奨事項
    2. 13.2 DNP (S-PDSO-N6)メカニカル図面

8.4.2.3 End-of-Conversion Mode

An end-of-conversion indicator mode can be used when every measurement is desired to be read by the processor, prompted by the INT pin going active on every measurement completion. This mode is entered by setting the most significant two bits of the low-limit register (LE[3:2] from the Low-Limit Register) to 11b. This end-of-conversion mode is typically used in conjunction with the latched window-style comparison mode. The INT pin becomes inactive when the configuration register is read or the configuration register is written with a non-shutdown parameter or in response to an SMBus alert response. Table 4 summarizes the interrupt reporting mechanisms as a result of various operations.

Table 4. End-of-Conversion Mode while in Latched Window-Style Comparison Mode:
Flag Setting and Clearing Summary(2)

OPERATION FLAG HIGH FIELD FLAG LOW FIELD INT PIN(1) CONVERSION READY FIELD
The result register is above the high-limit register for fault count times. See the Result Register and the High-Limit Register for further details. 1 X Active 1
The result register is below the low-limit register for fault count times. See the Result Register and the Low-Limit Register for further details. X 1 Active 1
The conversion is complete with fault count criterion not met X X Active 1
Configuration register read(3) 0 0 Inactive 0
Configuration register write, M[1:0] = 00b (shutdown) X X X X
Configuration register write, M[1:0] > 00b (not shutdown) X X X 0
SMBus alert response protocol X X Inactive X

Note that when transitioning from end-of-conversion mode to the standard comparison modes (that is, programming LE[3:2] from 11b to 00b) while the configuration register latch field (L) is 1, a subsequent write to the configuration register latch field (L) to 0 is necessary in order to properly clear the INT pin. The latch field can then be set back to 1 if desired.