Texas Instruments TPA3244 Ultra-HD Pad Down Class-D Amplifiers
Texas Instruments TPA3244 Ultra-HD Pad Down Class-D Amplifiers are high-performance Class-D power amplifiers with true premium sound quality with Class-D efficiency. The TPA3244 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 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.
Features
- 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
Applications
- High-end soundbar
- Mini combo systems
- Blu-Ray Disc™ / DVD receivers
- Active speakers
Software
Simplified Schematic
Related Development Tools
Texas Instruments TPA3244EVM PurePath™ Ultra-HD Evaluation Module
Demonstrates the features of the TPA3244DDW, an analog-in, pad-down Class-D amplifier.
Texas Instruments SIDEGIG-XOVEREVM Crossover Audio Plug-in Module
Turns TI Audio Class-D amplifier evaluation modules into a high quality, two-way speaker amplifier.