ماژول آمپلی فایر استریو300*2 وات TPA3255

The TPA3255 is a high performance Class D power amplifier that offers class D efficiency and delivers true high end sound quality. The device features advanced integrated feedback design and proprietary high-speed gate driver error correction (PurePath ™ Ultra HD). The technology allows the device to maintain ultra-low distortion throughout the audio frequency band, while showing the perfect sound quality. The device operates in AD mode and can drive up to two 315W / 4R loads and two 150W (un-clipping) / 8R loads at 10% THD and features a 2 VRMS analog input interface to support high performance DACs (Such as TI's PCM5242) seamlessly connected. In addition to excellent audio performance, the TPA3255 combines two advantages of high power efficiency and low power consumption (less than 2.5W). This can be achieved with 85mR MOSFETs and an optimized gate driver solution. Compared with the traditional discrete implementation scheme, this solution can significantly reduce the idle loss.

product details:
*original TPA3255
*main filter electrolytic capacitor using ELNA brand, capacity 3900UF / 100V * 2, to ensure a steady stream of power support.
*resistor selection of high-precision chip resistors to ensure a good signal to noise ratio machine.
*using audio dedicated inductor to ensure sound crisp and powerful.
*PCB 1.6mm thick double-sided plate, 2.0 ounces of copper thickness, spraying the whole process, to ensure the size of the current good pass performance. First-class PCB quality.

Basic performance parameters:

D class
Quiescent current: 60mA
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 * 93 mm