Texas Instruments TPA3250D2 High-Definition Class-D Amplifier
Texas Instruments TPA3250D2 High-Definition Class-D Amplifier enables true premium sound quality with class-D efficiency. This amplifier features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath™ Ultra-HD). This technology allows ultra low distortion across the audio band and superior audio quality. With a 32V power supply, the device can drive up to 2×130W peak into a 4Ω load and 2×70W continuous into an 8Ω load. The TPA3250D2 features a 2VRMS analog input interface that works seamlessly with high-performance DACs such as TI's PCM5242. In addition to excellent audio performance, TPA3250D2 achieves both high power efficiency and very low power stage idle losses below 1W. This is achieved through the use of 60mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.Features
- Differential analog inputs
- Wide 12V to 36V supply voltage operation
- Self-protection design (including undervoltage, overtemperature, clipping, and short circuit protection) with error reporting
- Total output power at 10%THD+N
- 70W Stereo continuous into 8Ω in BTL 8Ω in BTL configuration at 32V
- 130W Stereo peak into 4Ω in BTL configuration at 32V
- Total output power at 1%THD+N
- 60W Stereo continuous into 8Ω in BTL configuration at 32V
- 105W Stereo peak into 4Ω in BTL configuration at 32V
- Multiple configurations possible
- Stereo, Mono, 2.1 and 4xSE
- Click and pop free startup and stop
- Advanced integrated feedback design with high-speed gate driver error correction (PurePath™ Ultra-HD)
- Signal bandwidth up to 100kHz for high-frequency content from HD sources
- Ultra low 0.005% THD+N at 1W into 4Ω and <0.01% THD+N to clipping
- 60dB PSRR (BTL, no input signal)
- <60µV (A-Weighted) output noise
- >110dB (A-Weighted) SNR
- 92% Efficient class-D operation (8Ω)
- EMI Compliant when used with recommended = system design
Applications
- High end soundbar
- Mini combo systems
- Blu-ray™ / DVD receivers
- Active speakers
Simple Schematic
Publicado: 2016-04-13
| Actualizado: 2024-05-02
