ZHCSRX2 march   2023 DAC53004W

PRODUCTION DATA  

  1. 1 特性
  2. 2 应用
  3. 3 说明
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 规格
    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: Voltage Output
    6. 6.6  Electrical Characteristics: Current Output
    7. 6.7  Electrical Characteristics: Comparator Mode
    8. 6.8  Electrical Characteristics: General
    9. 6.9  Timing Requirements: I2C Standard Mode
    10. 6.10 Timing Requirements: I2C Fast Mode
    11. 6.11 Timing Requirements: I2C Fast Mode Plus
    12. 6.12 Timing Requirements: SPI Write Operation
    13. 6.13 Timing Requirements: SPI Read and Daisy Chain Operation (FSDO = 0)
    14. 6.14 Timing Requirements: SPI Read and Daisy Chain Operation (FSDO = 1)
    15. 6.15 Timing Requirements: GPIO
    16. 6.16 Timing Diagrams
    17. 6.17 Typical Characteristics: Voltage Output
    18. 6.18 Typical Characteristics: Current Output
    19. 6.19 Typical Characteristics: Comparator
    20. 6.20 Typical Characteristics: General
  7. 7 详细说明
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 特性说明
      1. 7.3.1 智能数模转换器 (DAC) 架构
      2. 7.3.2 数字输入/输出
      3. 7.3.3 Nonvolatile Memory (NVM)
      4. 7.3.4 Power Consumption
    4. 7.4 器件功能模式
      1. 7.4.1 电压输出模式
        1. 7.4.1.1 电压基准和 DAC 传递函数
          1. 7.4.1.1.1 Internal Reference
          2. 7.4.1.1.2 External Reference
          3. 7.4.1.1.3 Power-Supply as Reference
      2. 7.4.2 Current-Output Mode
      3. 7.4.3 比较器模式
        1. 7.4.3.1 可编程迟滞比较器
        2. 7.4.3.2 Programmable Window Comparator
      4. 7.4.4 故障转储模式
      5. 7.4.5 应用特定模式
        1. 7.4.5.1 电压裕量和调节
          1. 7.4.5.1.1 高阻抗输出和 PROTECT 输入
          2. 7.4.5.1.2 Programmable Slew-Rate Control
          3. 7.4.5.1.3 PMBus Compatibility Mode
        2. 7.4.5.2 函数生成
          1. 7.4.5.2.1 Triangular Waveform Generation
          2. 7.4.5.2.2 Sawtooth Waveform Generation
          3. 7.4.5.2.3 Sine Waveform Generation
      6. 7.4.6 器件复位和故障管理
        1. 7.4.6.1 上电复位 (POR)
        2. 7.4.6.2 External Reset
        3. 7.4.6.3 Register-Map Lock
        4. 7.4.6.4 NVM 循环冗余校验 (CRC)
          1. 7.4.6.4.1 NVM-CRC-FAIL-USER 位
          2. 7.4.6.4.2 NVM-CRC-FAIL-INT 位
      7. 7.4.7 Power-Down Mode
    5. 7.5 编程
      1. 7.5.1 SPI 编程模式
      2. 7.5.2 I2C Programming Mode
        1. 7.5.2.1 F/S 模式协议
        2. 7.5.2.2 I2C 更新序列
          1. 7.5.2.2.1 地址字节
          2. 7.5.2.2.2 Command Byte
        3. 7.5.2.3 I2C 读取序列
      3. 7.5.3 通用输入/输出 (GPIO) 模式
    6. 7.6 Register Map
      1. 7.6.1  NOP Register (address = 00h) [reset = 0000h]
      2. 7.6.2  DAC-X-MARGIN-HIGH Register (address = 01h, 07h, 0Dh, 13h) [reset = 0000h]
      3. 7.6.3  DAC-X-MARGIN-LOW Register (address = 02h, 08h, 0Eh, 14h) [reset = 0000h]
      4. 7.6.4  DAC-X-VOUT-CMP-CONFIG Register (address = 03h, 09h, 0Fh, 15h) [reset = 0000h]
      5. 7.6.5  DAC-X-IOUT-MISC-CONFIG Register (address = 04h, 0Ah, 10h, 16h) [reset = 0000h]
      6. 7.6.6  DAC-X-CMP-MODE-CONFIG Register (address = 05h, 0Bh, 11h, 17h) [reset = 0000h]
      7. 7.6.7  DAC-X-FUNC-CONFIG Register (address = 06h, 0Ch, 12h, 18h) [reset = 0000h]
      8. 7.6.8  DAC-X-DATA Register (address = 19h, 1Ah, 1Bh, 1Ch) [reset = 0000h]
      9. 7.6.9  COMMON-CONFIG Register (address = 1Fh) [reset = 0FFFh]
      10. 7.6.10 COMMON-TRIGGER Register (address = 20h) [reset = 0000h]
      11. 7.6.11 COMMON-DAC-TRIG Register (address = 21h) [reset = 0000h]
      12. 7.6.12 GENERAL-STATUS Register (address = 22h) [reset = 00h, DEVICE-ID, VERSION-ID]
      13. 7.6.13 CMP-STATUS 寄存器（地址 = 23h）[复位 = 0000h]
      14. 7.6.14 GPIO-CONFIG Register (address = 24h) [reset = 0000h]
      15. 7.6.15 DEVICE-MODE-CONFIG Register (address = 25h) [reset = 0000h]
      16. 7.6.16 INTERFACE-CONFIG Register (address = 26h) [reset = 0000h]
      17. 7.6.17 SRAM-CONFIG Register (address = 2Bh) [reset = 0000h]
      18. 7.6.18 SRAM-DATA Register (address = 2Ch) [reset = 0000h]
      19. 7.6.19 DAC-X-DATA-8BIT Register (address = 40h, 41h, 42h, 43h) [reset = 0000h]
      20. 7.6.20 BRDCAST-DATA Register (address = 50h) [reset = 0000h]
      21. 7.6.21 PMBUS-PAGE Register [reset = 0300h]
      22. 7.6.22 PMBUS-OP-CMD-X Register [reset = 0000h]
      23. 7.6.23 PMBUS-CML Register [reset = 0000h]
      24. 7.6.24 PMBUS-VERSION 寄存器 [复位 = 2200h]
  8. 8 应用和实现
    1. 8.1 Application Information
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
      3. 8.2.3 Application Curve
    3. 8.3 Power Supply Recommendations
    4. 8.4 布局
      1. 8.4.1 布局指南
      2. 8.4.2 Layout Example
  9. 9 Device and Documentation Support
    1. 9.1 接收文档更新通知
    2. 9.2 支持资源
    3. 9.3 Trademarks
    4. 9.4 静电放电警告
    5. 9.5 术语表
  10. 10Mechanical, Packaging, and Orderable Information

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7.4.1.1.3 Power-Supply as Reference

The DACx3004W can operate with the power-supply pin (VDD) as a reference. Equation 4 shows DAC transfer function when the power-supply pin is used as reference. The gain at the output stage is always 1x.

Equation 4. V O U T = D A C _ D A T A 2 N × V D D

where:

  • N is the resolution in bits, 10 (DAC53004W) or 12 (DAC63004W).
  • DAC_DATA is the decimal equivalent of the binary code that is loaded to the DAC-X-DATA bit in the DAC-X-DATA register.
  • DAC_DATA ranges from 0 to 2N – 1.
  • VDD is used as the DAC reference voltage.
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