Product Description:
The TPA3255 is a high performance Class D power amplifier with Class D efficiency and true to high-end sound quality. The device features an advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePathTM Ultra HD). This technology allows the device to maintain ultra-low distortion throughout the audio band while delivering perfect sound quality. The device operates in AD mode and can drive up to two 315W/4R loads and two 150W (un Clipped Power)/8R loads with a THD of 10%, and features a 2 VRMS analog input interface for high performance DACs. Seamless connection (eg TI&x27;s PCM5242). In addition to outstanding audio performance, the TPA3255 combines high power efficiency with ultra-low power stage idle loss (less than 2.5W). This can be achieved with an 85mR MOSFET and an optimized gate driver solution. This solution can significantly reduce idle loss compared to traditional discrete implementations.
product details:
1. Using original TPA3255 LM2575S-12
2. The main filter electrolytic capacitor adopts the capacity of 4700UF/63V*2 to ensure strong and continuous power support.
3. The resistor uses high-precision chip resistor to ensure a good signal-to-noise ratio of the whole machine.
4. Use audio special inductor to ensure the sound is crisp and powerful.
5.PCB adopts 1.6mm thick double-sided sheet, 2.0 oz copper thickness, and tin-spraying process to ensure good passing performance of large and small currents. First-class PCB quality.
Basic performance parameters:
Working method: Class D
Quiescent current: 60mA
Work efficiency: .>90%
Output Power:
315W/4Ω, distortion 10%
185W/8Ω, distortion 10%
260W/4Ω, distortion 1%
150W/8Ω, distortion 1%
Frequency response: 20Hz to 20KHz
Dynamic range: >100 dB
Signal to noise ratio: (SNR) > 111dB
Working voltage: DC48V
PCB size: 149*93MM