Texas Instruments TPA005D12 manual

Contents

Main Page Preface Related Documentation From Texas Instruments Reducing and Eliminating the Class-D Output Filter Design Considerations for Class-D Audio Power Amplifiers TI Plug-N-Play Audio Amplifier Evaluation Platform Page Contents Figures Tables Introduction 1.1 Feature Highlights Description 1-3 1.2 Description Figure 12. The TI TPA005D12 Class-D Stereo Audio Power Amplifier EVM Figure 11. The TI TPA005D12 Class-D Stereo Audio Power Amplifier EVM Top View Bottom View 1.3 TPA005D12 Class-D EVM Specifications 1.3.1 Maximum 1.3.2 Typical Chapter 2 Quick Start Topic Page Precautions 2.1 Precautions Figure 21. Quick Start Platform Map 2.2 Quick Start List for Platform U5 5-V Mute Lo. 2.3 Quick Start List for Stand-Alone OFF. ON. Chapter 3 Details Topic Page Precautions 3.1 Precautions Figure 31. The TI Plug-N-Play Audio Amplifier Evaluation Platform 3.2 The TPA005D12 Class-D Audio Power Amplifier Evaluation Module Figure 32. The TI TPA005D12 Class-D Stereo Audio Power Amplifier EVM 3-4 Top View Figure 33. The TI TPA005D12 Class-D Stereo Audio Power Amplifier EVM Bottom View Figure 34. TPA005D12 Class-D EVM Schematic Diagram 3.2.1 TPA005D12 Class-D Stereo Audio Amplifier IC 3.2.2 Overview of Class-D Audio Amplifiers Figure 35. Class-D Functional Diagram Figure 36. Class-D Input and Output Waveforms 3.2.3 Bridge-Tied Load (BTL) Operation NOT 3.2.4 Class-D Differential Inputs 3.2.5 Control and Indicator Circuits Table 31.TPA005D12 Class-D EVM Fault Indicator Table 3-9 3.2.6 TPA005D12 Class-D EVM Test Points Table 32.TPA005D12 Class-D EVM Test Points 3.3 Class-D Amplifier Design Considerations 3.4 Using The TPA005D12 Class-D EVM With the Plug-N-Play Platform 3.4.1 Installing and Removing EVM Boards 3.4.1.1 EVM Insertion 3.4.1.2 EVM Removal 3.4.2 Module Switches 3.4.2.1 S1 Shutdown 3.4.2.2 S2 Mute Switch 3.4.3 Signal Routing Figure 37. Platform Signal Routing and Outputs U5 3.4.3.1 Signal Conditioning 3.4.3.2 Headphone Output Jack 3.4.4 Shutdown 3.4.4.1 Headphone Jack Control Signals Figure 38. Mute/Mode and Polarity Control Page 3.4.5 Power Requirements platform MUST NOT Table 33.Platform Jumper and Switch Settings for the TPA005D12 EVM Power Inputs MUST NOT 3.4.6 Inputs and Outputs 3.4.6.1 Inputs 3.4.6.2 Outputs Figure 39. Typical Headphone Plug Using The TPA005D12 Class-D EVM Stand-Alone 3.5 Using The TPA005D12 Class-D EVM Stand-Alone Mute Shutdown Left Figure 310. TPA005D12 Class-D EVM Stand-Alone Connections for Stereo BTL Output 3.5.2 Input Connections 3.5.3 Output Connections 3.5.4 Controls and Indicators 3.6 TPA005D12 Class-D EVM Performance Characteristics Figure 311. Class-D Amplifier Frequency Response at 4 Figure 312. Class-D Amplifier Distortion versus Output Power at 4 Figure 313. Class-D Amplifier Distortion versus Output Power at 8 Figure 314. Class-D Amplifier Distortion versus Frequency at 1 W Into 4 Figure 315. Class-D Amplifier Distortion versus Frequency at 1 W Into 8 3-23 Figure 316. Class-D Amplifier Crosstalk versus Frequency at 2 W Into 4 CROSSTALK vs FREQUENCY Figure 317. Class-D Amplifier Crosstalk versus Frequency at 2 W Into 8 CROSSTALK vs FREQUENCY TPA005D12 Class-D EVM Interconnects 3.7 TPA005D12 Class-D EVM Interconnects Table 34.TPA005D12 Class-D EVM/Plug-N-Play Platform Interconnects TPA005D12 Class-D EVM Bill of Materials 3-25 3.8 TPA005D12 Class-D EVM Bill of Materials Table 35.TPA005D12 Class-D EVM Bill of Materials TPA005D12 Class-D EVM Schematic 3-26 3.9 TPA005D12 Class-D EVM Schematic Figure 318. TPA005D12 Class-D EVM Schematic Diagram