SLOS882B January   2015  – December 2017 TPA3140D2

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
    1.     Device Images
      1.      Simplified Schematic
  4. 4 Revision History
  5. 5 Device Comparison Table
  6. 6 Pin Configuration and Functions
    1.     Pin Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Switching Characteristics
    7. 7.7 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1  Gain Setting via GAIN Pin
      2. 9.3.2  SD Operation
      3. 9.3.3  Gain Limit Control, LIMTHRES and LIMRATE
      4. 9.3.4  SPEAKERGUARD Automatic Gain Limit, AGL
      5. 9.3.5  Thermal Foldback, TFB
      6. 9.3.6  PLIMIT
      7. 9.3.7  LIMTHRES
      8. 9.3.8  Spread Spectrum and De-Phase Control
      9. 9.3.9  GVDD Supply
      10. 9.3.10 DC Detect
      11. 9.3.11 PBTL Select
      12. 9.3.12 Short-Circuit Protection and Automatic Recovery Feature
      13. 9.3.13 Thermal Protection
    4. 9.4 Device Functional Modes
  10. 10Application and Implementation
    1. 10.1 Application Information
    2. 10.2 Typical Applications
      1. 10.2.1 Design Requirements
        1. 10.2.1.1 PCB Material Recommendation
        2. 10.2.1.2 PVCC Capacitor Recommendation
        3. 10.2.1.3 Decoupling Capacitor Recommendations
      2. 10.2.2 Detailed Design Procedure
        1. 10.2.2.1 Ferrite Bead Filter Considerations
        2. 10.2.2.2 Efficiency: LC Filter Required with the Traditional Class-D Modulation Scheme
        3. 10.2.2.3 When to Use an Output Filter for EMI Suppression
        4. 10.2.2.4 Input Resistance
        5. 10.2.2.5 Input Capacitor, Ci
        6. 10.2.2.6 BSN and BSP Capacitors
        7. 10.2.2.7 Differential Inputs
        8. 10.2.2.8 Using Low-ESR Capacitors
      3. 10.2.3 Application Performance Curves
        1. 10.2.3.1 EN55013 Radiated Emissions Results
        2. 10.2.3.2 EN55022 Conducted Emissions Results
  11. 11Power Supply Recommendations
    1. 11.1 Power Supply Decoupling, CS
  12. 12Layout
    1. 12.1 Layout Guidelines
    2. 12.2 Layout Example
  13. 13Device and Documentation Support
    1. 13.1 Device Support
      1. 13.1.1 Third-Party Products Disclaimer
    2. 13.2 Documentation Support
      1. 13.2.1 Related Documentation
    3. 13.3 Community Resources
    4. 13.4 Trademarks
    5. 13.5 Electrostatic Discharge Caution
    6. 13.6 Glossary
  14. 14Mechanical, Packaging, and Orderable Information

Package Options

Mechanical Data (Package|Pins)
Thermal pad, mechanical data (Package|Pins)
Orderable Information

10.2.3.2 EN55022 Conducted Emissions Results

TV (40 inch) from the major TV manufacturer, TPA3140D2 EVM, PVCC = 12 V, 8-Ω speakers, Spread Spectrum enabled, PO = 1.25 W
TPA3140D2 CISPR_Pre_Scan_Line_150kHz_30MHz_los882.gif
CISPR Class B 0.150-30MHz Idle Mode. SS0, Triangular, BD, 1.25 Watt
Figure 32. Conducted Emission - Line
TPA3140D2 CISPR_Pre_Scan_Neutral_150kHz_30MHz_los882.gif
CISPR Class B 0.150-30MHz Idle Mode. SS0, Triangular, BD, 1.25 Watt
Figure 33. Conducted Emission - Neutral

Table 8. Conducted Emission - Line

FREQUENCY
MHz		QP LIMIT
dBµV		AVE LIMIT
dBµV		AVE READINGS
dBµV		AVE MARGIN
dB		QP READINGS
dBµV		QP MARGIN
dB
0.156 65.83 55.83 33.774 –22.056 45.956 –19.873
0.552 56 46 28.872 –17.128 39.164 –16.836
0.806 56 46 21.341 –24.659 29.585 –26.415
0.95 56 46 22.678 –23.322 31.471 –24.529
1.485 56 46 22.622 –23.378 31.082 –24.918
1.976 56 46 20.952 –25.048 29.849 –26.151

Table 9. Conducted Emission - Neutral

FREQUENCY
MHz		QP LIMIT
dBµV		AVE LIMIT
dBµV		AVE READINGS
dBµV		AVE MARGIN
dB		QP READINGS
dBµV		QP MARGIN
dB
0.158 65.785 55.785 34.022 –21.763 45.398 –20.387
0.554 56 46 29.574 –16.426 40.485 –15.515
0.735 56 46 22.652 –23.348 32.52 –23.48
0.918 56 46 22.699 –23.301 31.849 –24.151
1.402 56 46 23.264 –22.736 32.173 –23.827
7.806 60 50 28.006 –21.994 35.214 –24.786