SLASF47 May   2022 DAC53202 , DAC63202

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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: 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 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 Digital Input/Output
      3. 7.3.3 Nonvolatile Memory (NVM)
    4. 7.4 Device Functional Modes
      1. 7.4.1 Voltage-Output Mode
        1. 7.4.1.1 Voltage Reference and DAC Transfer Function
          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 Comparator Mode
        1. 7.4.3.1 Programmable Hysteresis Comparator
        2. 7.4.3.2 Programmable Window Comparator
      4. 7.4.4 Fault-Dump Mode
      5. 7.4.5 Application-Specific Modes
        1. 7.4.5.1 Voltage Margining and Scaling
          1. 7.4.5.1.1 High-Impedance Output and PROTECT Input
          2. 7.4.5.1.2 Programmable Slew-Rate Control
          3. 7.4.5.1.3 PMBus Compatibility Mode
        2. 7.4.5.2 Function Generation
          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 Device Reset and Fault Management
        1. 7.4.6.1 Power-On Reset (POR)
        2. 7.4.6.2 External Reset
        3. 7.4.6.3 Register-Map Lock
        4. 7.4.6.4 NVM Cyclic Redundancy Check (CRC)
          1. 7.4.6.4.1 NVM-CRC-FAIL-USER Bit
          2. 7.4.6.4.2 NVM-CRC-FAIL-INT Bit
      7. 7.4.7 Power-Down 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
      3. 7.5.3 General-Purpose Input/Output (GPIO) Modes
    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 = 13h, 01h) [reset = 0000h]
      3. 7.6.3  DAC-X-MARGIN-LOW Register (address = 14h, 02h) [reset = 0000h]
      4. 7.6.4  DAC-X-VOUT-CMP-CONFIG Register (address = 15h, 03h) [reset = 0000h]
      5. 7.6.5  DAC-X-IOUT-MISC-CONFIG Register (address = 16h, 04h) [reset = 0000h]
      6. 7.6.6  DAC-X-CMP-MODE-CONFIG Register (address = 17h, 05h) [reset = 0000h]
      7. 7.6.7  DAC-X-FUNC-CONFIG Register (address = 18h, 06h) [reset = 0000h]
      8. 7.6.8  DAC-X-DATA Register (address = 1Ch, 19h) [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 Register (address = 23h) [reset = 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 BRDCAST-DATA Register (address = 50h) [reset = 0000h]
      20. 7.6.20 PMBUS-PAGE Register [reset = 0300h]
      21. 7.6.21 PMBUS-OP-CMD-X Register [reset = 0000h]
      22. 7.6.22 PMBUS-CML Register [reset = 0000h]
      23. 7.6.23 PMBUS-VERSION Register [reset = 2200h]
  8. 8 Application and Implementation
    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 Curves
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Receiving Notification of Documentation Updates
    3. 11.3 Support Resources
    4. 11.4 Trademarks
    5. 11.5 Electrostatic Discharge Caution
    6. 11.6 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information
7.4.5.2.2 Sawtooth Waveform Generation

The sawtooth and the inverse sawtooth waveforms use the DAC-X-MARGIN-LOW and DAC-X-MARGIN-HIGH registers for minimum and maximum levels, respectively. Equation 8 shows that the frequency of the waveform depends on the min and max levels, CODE-STEP and SLEW-RATE settings. An external RC load with a time constant larger than the slew-rate settings can be dominant over the internal frequency calculation. The CODE-STEP-X and SLEW-RATE-X settings are available in the DAC-X-FUNC-CONFIG register. Write 0b001 to the FUNC-CONFIG-X bit field in the DAC-X-FUNC-CONFIG register to select sawtooth waveform, and write 0b010 to select inverse sawtooth waveform.

Equation 7. fSAWTOOTH_WAVE=1SLEW_RATE×MARGIN_HIGH-MARGIN_LOW+1CODE_STEP

where:

  • SLEW_RATE is the SLEW-RATE-X setting specified in Table 7-6.
  • CODE_STEP is the CODE-STEP-X setting specified in Table 7-5.
  • MARGIN_HIGH is the DAC-X-MAGIN-HIGH specified in Section 7.6.2.
  • MARGIN_LOW is the DAC-X-MAGIN-LOW specified in Section 7.6.3.