Amplifier Module TPA3255

- Class D 2x110W sous 8 Ohms -

TI : TPA 3255 Purepath

This module integrates the latest generation of Texas Instrument Purepath UltraHD technology with 100kHz bandwidth in HD audio formats. The integrated mosfet scanning error correction system allows accurate playback on a module with high power of 2X110W at 8 Ohm on a compact and simple integration board.

The input stage designed on two classic PDOs TL072 type FET works on an input voltage of 2V. It is possible to directly attack by a DAC with variable volume or by digital volume of a computer without dynamic adaptation and bandwidth problems.

High quality parts

The module has 2 ELNA ELA 5 electrolytic capacitors of 3900µF on 100V of high reliability to ensure a constant power supply. The control part uses the high-performance LM2575S. The output filter has audio inductances for smoother sound.

The LEDs on the circuit indicate the following functions:
Fault: Signal too high at input or output impedance on speaker terminals too high
OTW Clip: Overvoltage and under voltage and overheating

This module require a speaker delay board to avoid ON/OFF plop noise

Technical caracteristics