TPA3255 is a high-performance class D power amplifier with class D efficiency, which can bring true high-end sound quality. The device has an 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 audio frequency band while exhibiting perfect sound quality. The device works in AD mode. When the THD is 10%, it can drive up to 2 315W/4R load and 2 150W (no interference power)/8R load, and has a 2 VRMS analog input interface, supporting high-performance DAC (such as TI's PCM5242) seamless connection connection. In addition to excellent audio performance, TPA3255 also has two main advantages: high power efficiency and ultra-low power level idle loss (less than 2.5W). This can be achieved with an 85mR MOSFET and an optimized gate driver scheme. Compared with the traditional discrete implementation, this solution can significantly reduce idle losses.
Product Details:
1. Use the original TPA3255
2. The computing end uses a replaceable DIP-8 op amp* 2, and the purchaser can independently upgrade the computing model. This product uses 2 TI high-performance audio operational amplifiers NE5532P
3. The main filter electrolytic capacitor adopts Nichicon capacity 2200UF/63V* 2, 6 Nichicon FW series 25V 10UF golden audio input coupling capacitors. Other filter capacitors use Nichicon series.
4. Audio digital class D amplifier adopts SAGAMI 7W14A inductor to ensure clear and strong sound.
Basic performance parameters:
Working method: D level
Standby current: 80mA
Work efficiency:> 90%
Channel: 2.0
Rest/Mute: Short-circuit mute function
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: DC24-48V switching power supply (recommended voltage 36V)
Package Included:
Power amplifier board X1
Signal line X1