Texas Instruments TPA3244 Ultra-HD 패드 다운 클래스 D 증폭기
Texas Instruments TPA3244 Ultra-HD 패드 다운 클래스 D 증폭기는 클래스 D 효율과 진정한 최고급 음질을 자랑하는 고성능 클래스 D 전력 증폭기입니다. TPA3244는 최첨단 통합 피드백 설계 및 고유한 고속 게이트 드라이버 오류 교정(PurePath™ Ultra-HD) 특징을 갖추고 있습니다. 이 기술을 통해 오디오 대역에서 왜곡 현상을 상당히 낮추고 우수한 오디오 품질을 달성할 수 있습니다.
With a 30V power supply, the device can drive up to a 2x110W peak into 4Ω load and 2x60W continuous into 8Ω load. The devices feature a 2VRMS analog input interface that works seamlessly with high-performance DACs like the Burr-Brown PCM52xx DAC Family from TI (PCM5242 / PCM5252).
In addition to excellent audio performance, the Texas Instruments TPA3244 achieves high power efficiency and very low power stage idle losses below 0.45W. This feature is achieved through the use of 65mΩ MOSFETs and an optimized gate driver scheme that achieves significantly lower idle losses than typical discrete implementations.
특징
- Differential analog inputs
- Total output power at 10%THD+N
- 60W stereo continuous into 8Ω in BTL
- Configuration at 30V
- 110W stereo peak into 4Ω in BTL
- Configuration at 30V
- Total output power at 1%THD+N
- 50W stereo continuous into 8Ω in BTL
- Configuration at 30V
- 90W stereo peak into 4Ω in BTL
- Configuration at 30V
- Advanced integrated feedback design with high-speed
- Gate driver error correction
- 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)
- < 55μV (A-Weighted) output noise
- > 110dB (A-Weighted) SNR
- (PurePath™ Ultra-HD)
- Signal bandwidth up to 100kHz for high
- Multiple configurations possible
- Stereo, Mono, 2.1 and 4xSE
- Click and pop free startup and stop
- 94% efficient Class-D operation (8Ω)
- Wide 12V to 30V supply voltage operation
- Self-protection design (including undervoltage, overtemperature, clipping, and short circuit protection) with error reporting
- EMI compliant when used with recommended system design
애플리케이션
- High-end soundbar
- Mini combo systems
- Blu-Ray Disc™ / DVD receivers
- Active speakers
Software
Simplified Schematic
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