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Texas Instruments PurePath TAS5766M Audio Manuals
Manuals and User Guides for Texas Instruments PurePath TAS5766M Audio. We have
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Texas Instruments PurePath TAS5766M Audio manual available for free PDF download: User Manual
Texas Instruments PurePath TAS5766M User Manual (52 pages)
Smart Amplifier
Brand:
Texas Instruments
| Category:
Amplifier
| Size: 2.85 MB
Table of Contents
Table of Contents
2
General Overview
4
Supported Smart Amp Devices
4
Migrating from Previous Versions of Smart Amp
4
What Is Smart Amp
5
Figure 1. Purepath™ Smart Amp Block Diagram
5
Smart Amp Features
6
Smart Amp Development Overview
7
Figure 2. Smart Amp Development Overview
7
What's Needed
8
Table 1. Equipment and Software
8
1.6.1 Obtaining TI Hardware and Software
9
Figure 3. Mysecuresoftware Page
9
1.6.2 Miscellaneous Equipment
10
Table 2. Miscellaneous Equipment
10
Table 3. Microphones Tested for Smart SPL and Passive Radiator Systems
10
Things to Consider During Development
11
Leading up to Engineering Validation Test (EVT)
11
Leading up to Design Validation Test (DVT) and Mass Production (MP)
11
Software Installation
12
Purepath™ Console 3 Installation
12
MATLAB Runtime Installation
12
Figure 4. Verification of MATLAB Compiler Runtime Installation
12
Getting Smart Amp Apps
13
Loudspeaker Characterization
14
Characterization Process
14
Characterization Summary Page
15
Saving a Characterization
15
Smart Amp Tuning
16
Figure 5. Smart Amp Tuning Process
16
Tuning Preparation
17
Smart Bass Tuning
18
Figure 6. Smart Amp Tuning Page
18
Bass Enhancement (Low Volume Tuning)
19
Table 4. Bass Enhancement Parameters
19
Morphing Control (MID- to High- Volume Tuning)
21
Harmonic Bass Alignment (MID- to High- Volume Tuning)
22
Excursion Tuning (Optional)
22
Smart EQ
23
Digital Gain Control
26
Snapshots
26
Saving a Tuning
26
Figure 7. Digital Gain Control
26
Hardware Design
27
Figure 8. Audio Clip A, 22Db Peak to Average Ratio Source
27
Figure 9. Audio Clip B, 9Db Peak to Average Ratio Source
27
Power Supply Rail Voltage
28
Table 5. Example Smart Amp Supply Rail Voltages for the TAS5766M
28
Power Supply Current at Audio Frequencies
29
Figure 10. Effects of Decoupling for Audio Frequencies
29
Figure 11. Power Supply Current Measurement
30
Table 6. Peak Input Current Examples (One Channel)
30
Power Supply Current at Higher Frequencies
31
Post-Processing Considerations
31
Figure 12. Smart Amp Signal Chain
31
Table 7. TAS5766M/68M Post-Processing Gain Controls
32
Software Implementation and Verification
33
Importing the Speaker Parameters into the Smart Amp Target EVM App
34
Calibrating the System Gain in the End-System
35
Smart Amp Register Dump into a Header File
37
Figure 13. End-System Integration
37
Figure 14. Dump to Header File Page
38
6.3.1 Working with Non-Standard Configurations
39
Figure 15. Example Header File Output Snippet
39
Integrating the Output Header File into the End-System
40
Smart Amp Verification in the End-System
40
Figure 16. Example Header File Output Snippet
40
Changing Device Parameters On-The-Fly in the End-System
42
Figure 17. Volume Control Change Comparison
42
Support
43
References
44
Appendix A. Supported Speaker Configuration Types
45
Figure A-2. Obtaining the Loudspeaker Diameter
45
Figure A-3. Speaker Element Types
45
A.1 Free Field / Single Speaker in Box
46
A.2 Left and Right Drivers in the same Box
47
Parallel/Series Drivers in the same Box (no Analog Crossover)
48
Parallel Drivers in the same Box (Analog Crossover)
49
Appendix B. Smart Amp End-System Implementation Checklist
50
Appendix C. MATLAB Compiler Runtime Troubleshooting
51
Figure C-1. Editing Windows System Variables
51
Revision History
52
Trademarks
52
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