The UAC 3554B is a fully integrated headset codec (ADC and DAC) with an USB 2.0 full-speed interface controller. The integrated DSP handles all common sample rates and supports audio processing such as volume, bass, and treble. The programmable 5-band parametric equalizer enables adjustments of the frequency response of the applied headphone. Integrated amplifiers allow direct headset connection. The microphone signal can be mixed to the USB audio data for sidetone or karaoke applications.