За контакти - Емил - 0887 185 909 ..
продавам аудио усилвател TPA3255 - цена 105 лева.
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PA3255 Digital Power Amplifier Board (300W + 300W)
Product Description:
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 (PurePathUltra 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:
All parts of this product are original authentic, unpretentious, pure quality; the use of high quality original parts and components, not only the safety and quality are guaranteed, long service life, more important is to make the
actual performance to achieve the design goal of a strong guarantee.
1. Original TPA3255
2. The main filter electrolytic capacitor using ELNA brand, capacity
3900UF / 100V * 2, to ensure a steady stream of dynamic support.
3. Resistance selection of high-precision chip resistors, to ensure
a good signal to noise ratio machine.
4. Using audio dedicated inductor to ensure sound crisp and powerful.
5.PCB with 1.6mm thick double-sided plate, 2.0 oz copper thickness,
spray the whole process of tin, to ensure the size of the current good
pass performance. First-class PCB quality.
Basic performance parameters:
Work: D class
Quiescent current: 60mA
Efficiency:.> 90%
Output Power:
315W / 4ohm, distortion 10%
185W / 8ohm, distortion 10%
260W / 4ohm, distortion 1%
150W / 8ohm, distortion 1%
Frequency response: 20Hz to 20KHz
Dynamic range:> 100 dB
Signal to noise ratio: (SNR)> 111dB
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