ZHCSAA4B September   2012  – September 2015 TPA3110D2-Q1

PRODUCTION DATA.  

  1. 1 特性
  2. 2 应用
  3. 3 说明
    1. 3.1 TPA3110D2-Q1 简化应用原理图
  4. 4 修订历史记录
  5. 5 Pin Configuration and Functions
    1.     Pin 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 DC Characteristics
    6. 6.6 DC Characteristics
    7. 6.7 AC Characteristics
    8. 6.8 AC Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 DC Detect
      2. 7.3.2 Short-Circuit Protection and Automatic Recovery Feature
      3. 7.3.3 Thermal Protection
      4. 7.3.4 GVDD Supply
    4. 7.4 Device Functional Modes
      1. 7.4.1 PBTL Select
      2. 7.4.2 Gain Setting Through GAIN0 and GAIN1 Inputs
      3. 7.4.3 SD Operation
      4. 7.4.4 PLIMIT
  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
        1. 8.2.2.1 TPA3110D2-Q1 Modulation Scheme
        2. 8.2.2.2 Ferrite Bead Filter Considerations
        3. 8.2.2.3 Efficiency: LC Filter Required With the Traditional Class-D Modulation Scheme
        4. 8.2.2.4 When to Use an Output Filter for EMI Suppression
        5. 8.2.2.5 Input Resistance
        6. 8.2.2.6 Input Capacitor, CI
        7. 8.2.2.7 BSN and BSP Capacitors
        8. 8.2.2.8 Differential Inputs
        9. 8.2.2.9 Using Low-ESR Capacitors
      3. 8.2.3 Application Curve
  9. 9 Power Supply Recommendations
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11器件和文档支持
    1. 11.1 器件支持
      1. 11.1.1 开发支持
    2. 11.2 文档支持
      1. 11.2.1 相关文档
    3. 11.3 社区资源
    4. 11.4 商标
    5. 11.5 静电放电警告
    6. 11.6 Glossary
  12. 12机械、封装和可订购信息

封装选项

机械数据 (封装 | 引脚)
散热焊盘机械数据 (封装 | 引脚)
订购信息

8.2.1 Design Requirements

The typical requirements for designing the external components around the TPA3110D1-Q1 include efficiency and EMI/EMC performance. For most applications, only a ferrite bead is needed to filter unwanted emissions. The ripple current is low enough that an LC filter is typically not needed. As the output power increases, causing the ripple current to increase, an LC filter can be added to improve efficiency. An LC filter can also be added in cases where additional EMI suppression is needed.

In addition to discussing how to choose a ferrite bead and when to use an LC filter, the following sections also discuss the input filter and power supply decoupling. The input filter must be chosen with the input impedance of the amplifier in mind. The cut-off frequency should be chosen so that bass performance is not impacted. Power supply decoupling is important to ensure that noise from the power line does not impact the audio quality of the amplifier output.
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