This design turns the extremely high performance analog input TPA3251 Class-D amplifier into a digital input system with audio processing using the highly versatile PCM5242 differential output DAC. Now the full performance of TPA3251 amplifier can be realized with a variety of digital input sources. The analog differential output and high SNR of the PCM5242 DAC is a perfect match to the fully differential analog input of the TPA3251 amplifier achieving outstanding noise performance and extremely low distortion. With the miniDSP on the PCM5242, audio processing and filtering can be added to further enhance audio performance in the end equipment.
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
Complete listing of design components, reference designators, and manufacturers/part numbers
Detailed overview of design layout for component placement
Files used for 3D models or 2D drawings of IC components
Design file that contains information on physical board layer of design PCB
PCB layer plot file used for generating PCB design layout
Includes TI products in the design and potential alternatives.
| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | TIDA-00874 Test Results | Dec. 18, 2015 | |
| More literature | High-Power Audio Amplifiers TPA322x/4x/5x | Dec. 01, 2017 | ||
| Technical article | How Class-D amplifiers are closing the gap on hi-res Class-AB amplifiers | PDF | HTML | Apr. 01, 2016 | |
| Technical article | How to select an audio amplifier for products with internal or external speakers | PDF | HTML | Feb. 29, 2016 | |
| Technical article | Selecting the right inductor for ultra-low distortion Class-D audio amplifiers | PDF | HTML | Jan. 29, 2016 | |
| Technical article | Setting the new standard: High-definition audio is changing the way we listen | PDF | HTML | Dec. 22, 2015 | |
| User guide | Using the TAS5754/6M and PCM5242 HybridFlow Processor (Rev. A) | Jun. 19, 2015 |
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