TPA3255 is a high-performance Class-D power amplifier chip, which has Class-D efficiency and can bring true high-end sound quality circuits. The device features advanced integrated feedback design and a proprietary high-speed gate driver error correction function (PurePath ™ Ultra HD).
This technology allows the device to maintain ultra-low distortion throughout the entire audio frequency band while exhibiting perfect sound quality. The device operates in AD mode. When THD is 10%, it can drive up to two 315W / 4R loads and two 150W (unclipped power) / 8R loads, and has a 2 VRMS analog input interface to support high-performance DAC (Eg TI’s PCM5242) seamless connection.
In addition to excellent audio performance, the TPA3255 also has the advantages of high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved by 85mR MOSFET and optimized gate driver scheme. Compared with the traditional discrete implementation scheme, this scheme can significantly reduce idle loss.
Product Specifications: This machine is developed and produced in accordance with standard products. All parts are original and genuine, with QC3003 BT5.0 chip to achieve wireless music playback of various portable products. This machine is directly powered by 220V power supply, easy to use. The all-aluminum chassis is of fine workmanship, while ensuring good heat dissipation. n Use original TPA3255 chip and Built-in high-power HIFI dedicated high-efficiency switching power supply, straight plug 220V n The resistor uses high-precision chip resistors to ensure a good signal-to-noise ratio. n Adopt special inductance for audio to ensure clear and powerful sound.
Basic performance parameters:
Working method: Class D
Quiescent current: 60mA
Work efficiency:.> 90%
Output Power: 315W / 4Ω, 10% Distortion 185W / 8Ω, 10% Distortion 260W / 4Ω, 1% Distortion 150W / 8Ω, Distortion 1% Frequency response: 20Hz to 20KHz
Dynamic range:> 100 dB
Signal to noise ratio: (SNR)> 111dB
Machine size: 183 * 52 * 189MM
Machine weight: 1.4 5KG
Packing Weight: 2 KG