JAJSHS8E June   2011  – August 2019 TPA6211A1-Q1

PRODUCTION DATA.  

  1. 特長
  2. アプリケーション
  3. 概要
    1.     Device Images
      1.      アプリケーション回路
  4. 改訂履歴
  5. Pin Configuration and Functions
    1.     Pin Functions
  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
    6. 6.6 Operating Characteristics
    7. 6.7 Dissipation Ratings
    8. 6.8 Typical Characteristics
  7. Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Advantages of Fully Differential Amplifiers
      2. 7.3.2 Fully Differential Amplifier Efficiency and Thermal Information
      3. 7.3.3 Differential Output Versus Single-Ended Output
    4. 7.4 Device Functional Modes
  8. Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Typical Differential Input Application
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
          1. 8.2.1.2.1 Resistors (RI)
          2. 8.2.1.2.2 Bypass Capacitor (CBYPASS) and Start-Up Time
          3. 8.2.1.2.3 Input Capacitor (CI)
          4. 8.2.1.2.4 Band-Pass Filter (RI, CI, and CF)
            1. 8.2.1.2.4.1 Step 1: Low-Pass Filter
            2. 8.2.1.2.4.2 Step 2: High-Pass Filter
            3. 8.2.1.2.4.3 Step 3: Additional Low-Pass Filter
          5. 8.2.1.2.5 Decoupling Capacitor (CS)
          6. 8.2.1.2.6 Using Low-ESR Capacitors
        3. 8.2.1.3 Application Curves
      2. 8.2.2 Other Application Circuits
  9. Power Supply Recommendations
    1. 9.1 Power Supply Decoupling Capacitor
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11デバイスおよびドキュメントのサポート
    1. 11.1 ドキュメントの更新通知を受け取る方法
    2. 11.2 コミュニティ・リソース
    3. 11.3 商標
    4. 11.4 静電気放電に関する注意事項
    5. 11.5 Glossary
  12. 12メカニカル、パッケージ、および注文情報

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

Step 2: High-Pass Filter

Equation 25. TPA6211A1-Q1 Q7_los367.gif

Because the application in this case requires a gain of 4 V/V, RI must be set to 10 kΩ.

Substituting RI into Equation 25.

Equation 26. TPA6211A1-Q1 Q8_los367.gif

Therefore,

Equation 27. TPA6211A1-Q1 Q9_los367.gif

Substituting 100 Hz for fc(HPF) and solving for CI:

Equation 28. CI = 0.16 µF

At this point, a first-order band-pass filter has been created with the low-frequency cutoff set to 100 Hz and the high-frequency cutoff set to 10 kHz.

The process can be taken a step further by creating a second-order high-pass filter. This is accomplished by placing a resistor (Ra) and capacitor (Ca) in the input path. Ra must be at least 10 times smaller than RI; otherwise its value has a noticeable effect on the gain, as Ra and RI are in series.