JAJSJI1E October   2020  – January 2021 DAC5652

PRODUCTION DATA  

  1. 1 特長
  2. 2 アプリケーション
  3. 3 概要
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 6 Specifications
    1. 6.1  Absolute Maximum Rationgs
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Resistance Characteristics
    5. 6.5  Electrical Characteristics
    6. 6.6  Electrical Characteristics
    7. 6.7  Electrical Characteristics, AC
    8. 6.8  Electrical Characteristics, DC
    9. 6.9  Switching Characteristics
    10. 6.10 Typical Characteristics
  7. 7 Parameter Measurement Information
    1. 7.1 Digital Inputs and Timing
      1. 7.1.1 Digital Inputs
      2. 7.1.2 Input Interfaces
      3. 7.1.3 Dual-Bus Data Interface and Timing
      4. 7.1.4 Single-Bus Interleaved Data Interface and Timing
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 DAC Transfer Function
      2. 8.3.2 Analog Outputs
      3. 8.3.3 Output Configurations
      4. 8.3.4 Differential With Transformer
      5. 8.3.5 Single-Ended Configuration
      6. 8.3.6 Reference Operation
        1. 8.3.6.1 Internal Reference
        2. 8.3.6.2 External Reference
      7. 8.3.7 Gain Setting Option
    4. 8.4 Device Functional Modes
      1. 8.4.1 Sleep Mode
  9. 9 Application Information Disclaimer
    1. 9.1 Application Informmation
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Performance Plots
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 ドキュメントの更新通知を受け取る方法
    3. 12.3 サポート・リソース
    4. 12.4 Trademarks
    5. 12.5 静電気放電に関する注意事項
    6. 12.6 用語集
  13. 13Mechanical, 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

8.3.7 Gain Setting Option

The full-scale output current on the DAC5652 can be set two ways: either for each of the two DAC channels independently or for both channels simultaneously. For the independent gain set mode, the GSET pin (pin 42) must be low (that is, connected to AGND). In this mode, two external resistors are required — one RSET connected to the BIASJ_A pin (pin 44) and the other to the BIASJ_B pin (pin 41). In this configuration, the user has the flexibility to set and adjust the full-scale output current for each DAC independently, allowing for the compensation of possible gain mismatches elsewhere within the transmit signal path.

Alternatively, bringing the GSET pin high (that is, connected to AVDD), the DAC5652 switches into the simultaneous gain set mode. Now the full-scale output current of both DAC channels is determined by only one external RSET resistor connected to the BIASJ_A pin. The resistor at the BIASJ_B pin may be removed; however, this is not required since this pin is not functional in this mode and the resistor has no effect on the gain equation.