TPA3255 4 Channel High Power Digital Class D Power Amplifier Board

Description This technology allows the device to maintain low distortion throughout the o frequency band while exhibiting good 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 o performance the TPA3255 also has the advantages of high power efficiency and ultra low power level idle loss less than 2 5W Features 1 Adopt imported TPA3255 chip2 The main filter electrolytic capacitor adopts a capacity of 470UF 50V 4 with strong and continuous power support 3 The resistor uses high precision chip resistors to ensure a good signal to noise ratio 4 Adopt special inductance for o to ensure the sound is crisp and powerful 5 PCB adopts 1 6mm thick double sided board 2 0 ounce copper thickness full tin spraying process good passing performance of large and small current Basic parameters Working method Class DQuiescent current 150mAWork efficiency more than 90 Output Power 315W 4 ohm distortion 10 4185W 8 ohm distortion 10 4260W 4 ohm distortion 1 4150W 8 ohm distortion 1 4Frequency response 20Hz to 20KHzDynamic range more than 100 dBSignal to noise ratio SNR more than 111dBWorking voltage DC24 48V switching power supply DC It is recommended to use DC36V switching power supply If the temperature of the radiator of the