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 Register Maps

Table 7-18 Register Map
REGISTER MOST SIGNIFICANT DATA BYTE (MSDB) LEAST SIGNIFICANT DATA BYTE (LSDB)
BIT15 BIT14 BIT13 BIT12 BIT11 BIT10 BIT9 BIT8 BIT7 BIT6 BIT5 BIT4 BIT3 BIT2 BIT1 BIT0
NOP NOP
DAC-X-VOUT-CMP-CONFIG 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
COMMON-CONFIG RESERVED DEV-LOCK RESERVED EN-INT-REF VOUT-PDN-0 RESERVED VOUT-PDN-1 RESERVED
COMMON-TRIGGER DEV-UNLOCK RESET RESERVED NVM-PROG NVM-RELOAD
COMMON-PWM-TRIG RESERVED START-FUNCTION-A RESERVED START-FUNCTION-B RESERVED START-FUNCTION-C RESERVED START-FUNCTION-D
GENERAL-STATUS NVM-CRC-FAIL-INT NVM-CRC-FAIL-USER RESERVED NVM-BUSY DEVICE-ID VERSION-ID
INTERFACE-CONFIG X TIMEOUT-EN X RESERVED X FSDO-EN X SDO-EN
STATE-MACHINE-CONFIG0 RESERVED SM-ABORT SM-START SM-EN
SRAM-CONFIG X SRAM-ADDR
SRAM-DATA SRAM-DATA
Note: Shaded cells indicate the register bits or fields that are stored in NVM.
Note: X = Don't care.
Table 7-19 Register Names
I2C OR SPI ADDRESS (COMMAND BYTE) REGISTER NAME SECTION
00h NOP Section 7.6.1
03h DAC-1-VOUT-CMP-CONFIG Section 7.6.2
15h DAC-0-VOUT-CMP-CONFIG Section 7.6.2
1Fh COMMON-CONFIG Section 7.6.3
20h COMMON-TRIGGER Section 7.6.4
21h COMMON-PWM-TRIG Section 7.6.5
22h GENERAL-STATUS Section 7.6.6
26h INTERFACE-CONFIG Section 7.6.7
27h STATE-MACHINE-CONFIG0 Section 7.6.8
2Bh SRAM-CONFIG Section 7.6.9
2Ch SRAM-DATA Section 7.6.10