JAJSLP1 September   2023 DAC43901-Q1 , DAC43902-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 Revision History
  6. 5 Pin Configuration and Functions
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information
    5. 6.5  Electrical Characteristics: Comparator Mode
    6. 6.6  Electrical Characteristics: General
    7. 6.7  Timing Requirements: I2C Standard Mode
    8. 6.8  Timing Requirements: I2C Fast Mode
    9. 6.9  Timing Requirements: I2C Fast-Mode Plus
    10. 6.10 Timing Requirements: SPI Write Operation
    11. 6.11 Timing Requirements: SPI Read and Daisy Chain Operation (FSDO = 0)
    12. 6.12 Timing Requirements: SPI Read and Daisy Chain Operation (FSDO = 1)
    13. 6.13 Timing Requirements: PWM Output
    14. 6.14 Timing Diagrams
    15. 6.15 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Smart Digital-to-Analog Converter (DAC) Architecture
      2. 7.3.2 Threshold DAC
        1. 7.3.2.1 Voltage Reference and DAC Transfer Function
        2. 7.3.2.2 Power-Supply as Reference
        3. 7.3.2.3 Internal Reference
        4. 7.3.2.4 External Reference
      3. 7.3.3 Programming Interface
      4. 7.3.4 Nonvolatile Memory (NVM)
        1. 7.3.4.1 NVM Cyclic Redundancy Check (CRC)
          1. 7.3.4.1.1 NVM-CRC-FAIL-USER Bit
          2. 7.3.4.1.2 NVM-CRC-FAIL-INT Bit
      5. 7.3.5 Power-On Reset (POR)
      6. 7.3.6 External Reset
      7. 7.3.7 Register-Map Lock
    4. 7.4 Device Functional Modes
      1. 7.4.1 Comparator Mode
      2. 7.4.2 PWM Fade-In Fade-Out Mode
      3. 7.4.3 Sequential Turn-Indicator Animation Mode
    5. 7.5 Programming
      1. 7.5.1 SPI Programming Mode
      2. 7.5.2 I2C Programming Mode
        1. 7.5.2.1 F/S Mode Protocol
        2. 7.5.2.2 I2C Update Sequence
          1. 7.5.2.2.1 Address Byte
          2. 7.5.2.2.2 Command Byte
        3. 7.5.2.3 I2C Read Sequence
    6. 7.6 Register Maps
      1. 7.6.1  NOP Register (address = 00h) [reset = 0000h]
      2. 7.6.2  DAC-x-VOUT-CMP-CONFIG Register (address = 15h, 03h)
      3. 7.6.3  COMMON-CONFIG Register (address = 1Fh)
      4. 7.6.4  COMMON-TRIGGER Register (address = 20h) [reset = 0000h]
      5. 7.6.5  COMMON-PWM-TRIG Register (address = 21h) [reset = 0000h]
      6. 7.6.6  GENERAL-STATUS Register (address = 22h) [reset = 00h, DEVICE-ID, VERSION-ID]
      7. 7.6.7  INTERFACE-CONFIG Register (address = 26h) [reset = 0000h]
      8. 7.6.8  STATE-MACHINE-CONFIG0 Register (address = 27h) [reset = 0003h]
      9. 7.6.9  SRAM-CONFIG Register (address = 2Bh) [reset = 0000h]
      10. 7.6.10 SRAM-DATA Register (address = 2Ch) [reset = 0000h]
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Sequential Turn Indicator
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Logarithmic Fade-In Fade-Out
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Detailed Design Procedure
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 ドキュメントの更新通知を受け取る方法
    2. 9.2 サポート・リソース
    3. 9.3 Trademarks
    4. 9.4 静電気放電に関する注意事項
    5. 9.5 用語集
  11. 10Mechanical, 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

7.6.2 DAC-x-VOUT-CMP-CONFIG Register (address = 15h, 03h)

Figure 7-20 DAC-x-VOUT-CMP-CONFIG Register (x = 0, 1)
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
X VOUT-GAIN-x X CMP-x-OD-EN CMP-x-OUT-EN CMP-x-HIZ-IN-DIS CMP-x-INV-EN CMP-x-EN
X-0h R/W-0h X-0h R/W-0h R/W-0h R/W-0h R/W-0h R/W-0h
Table 7-21 DAC-x-VOUT-CMP-CONFIG Register Field Descriptions
Bit Field Type Reset Description
15-13 X X 0h Don't care
12-10 VOUT-GAIN-x R/W 0h 000: Gain = 1 ×, external reference on VREF/MODE pin
001: Gain = 1 ×, VDD as reference
010: Gain = 1.5 ×, internal reference
011: Gain = 2 ×, internal reference
100: Gain = 3 ×, internal reference
101: Gain = 4 ×, internal reference
Others: Invalid
9-5 X X 0h Don't care
4 CMP-x-OD-EN R/W 0 0: Set comparator out pin as push-pull
1: Set comparator out pin as open-drain in comparator mode (CMP-x-EN = 1 and CMP-x-OUT-EN = 1)
3 CMP-x-OUT-EN R/W 0 0: Generate comparator output but consume internally
1: Bring comparator output to the respective pin
2 CMP-x-HIZ-IN-DIS R/W 0 0: TRIG-IN input has high-impedance. Input voltage range is limited.
1: TRIG-IN input is connected to resistor divider and has finite impedance. Input voltage range is same as full-scale.
1 CMP-x-INV-EN R/W 0 0: Don't invert the comparator output
1: Invert the comparator output
0 CMP-x-EN R/W 0 0: Disable comparator mode
1: Enable comparator mode. Current-output must be in power-down. Voltage-output mode must be enabled.