Analogue, Mixed Signal, LSI


Filter-free audio amplifier

28 October 2009 Analogue, Mixed Signal, LSI

Texas Instruments has introduced a 15 W stereo, filter-free, analog-input, Class D audio amplifier whose advanced electromagnetic interference (EMI) suppression technology eliminates the need for inductor-based output filters.

The TPA3110D2’s SpeakerGuard technology includes an adjustable power limiter and DC protection circuitry on the audio inputs, preventing speakers from being overdriven or damaged by DC currents due to board component failure or defects on the audio input circuitry. The device is designed for consumer audio applications, including HDTVs, media docking stations, digital radios and sound bars.

The device offers ultra-low THD+N performance of <0,1% over the full power range at 1 kHz and advanced click-and-pop suppression circuitry enables enhanced audio performance and fidelity. Flow-through pin-out facilitates hassle-free layout and optimises thermal performance with high-voltage pins on one side and input and control pins on the other. Differential inputs enable excellent common mode noise rejection and high-fidelity audio.



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