High Fidelity 175-W Class-D Audio Amplifier with Digital Inputs and Processing Reference Design
Description
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.
Description
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.
Features
- High performance and audio fidelity from the TPA3251 with digital sourcesAccepts USB: Optical: SPDIF and I2S format digital inputs175W @ 10% THD + N from digital sourcesLess than 0.004% THD + N 10W into 4ohmsminiDSP processing flexibility with PCM5242 DACFully differential analog path for noise rejection
Applications
- AV receiver
- Soundbar
- Professional audio amplifier (rack mount)
- Software defined radio
- Professional microphones & wireless systems
- Professional speaker systems
- Professional video camera
- Guitar amplifier & other music instrument amplifier
- Piano
- keyboard & synthesizer
- Virtual engine sound system (VESS)
Product Categories
- Audio
| Download the bill of materials for TIDA-00874 | Download |
Test Data
Get results faster with test and simulation data that's been verified.
Download the test file for TIDA-00874| Title | Updated | Type | Size (KB) | |
|---|---|---|---|---|
| TIDA-00874 Gerber | 18 Dec 2015 | ZIP | 1764 | |
| TIDA-00874 CAD Files | 18 Dec 2015 | ZIP | 2132 | |
| TIDA-00874 PCB | 18 Dec 2015 | 867 | ||
| TIDA-00874 Assembly Drawing | 18 Dec 2015 | 595 | ||
| TIDA-00874 BOM | 18 Dec 2015 | 317 | ||
| TIDA-00874 Schematic | 18 Dec 2015 | 1223 |