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R. McKenzie, X. Li, M. Snelgrove, and WA. TU. Ng, "A Digital Class D Audio Amplifier with Pulse Density Modulation and Distortion Suppression Feedback Loop," Paper 9859, (2017 October.). doi: R. McKenzie, X. Li, M. Snelgrove, and WA. TU. Ng, "A Digital Class D Audio Amplifier with Pulse Density Modulation and Distortion Suppression Feedback Loop," Paper 9859, (2017 October.). doi:
Abstract: A novel fully digital Class D amplifier is presented in which the output stage error is digitized by a 10-bit ADC and fed back into the modulation path to suppress distortion. This technique attenuates the in-band noise introduced by the output stage, and can tolerate large latency. A fully digital Pulse Density Modulation (PDM) Class D amplifier with output stage noise shaping is implemented on a PCB prototype. Feedback loop functionality is verified experimentally, and a 10 dB improvement in Total Harmonic Distortion plus Noise (THD+N) is realized.

@article{mckenzie2017a,
author={mckenzie, robert and li, xinchang and snelgrove, martin and ng, wai tung},
journal={journal of the audio engineering society},
title={a digital class d audio amplifier with pulse density modulation and distortion suppression feedback loop},
year={2017},
volume={},
number={},
pages={},
doi={},
month={october},} @article{mckenzie2017a,
author={mckenzie, robert and li, xinchang and snelgrove, martin and ng, wai tung},
journal={journal of the audio engineering society},
title={a digital class d audio amplifier with pulse density modulation and distortion suppression feedback loop},
year={2017},
volume={},
number={},
pages={},
doi={},
month={october},
abstract={a novel fully digital class d amplifier is presented in which the output stage error is digitized by a 10-bit adc and fed back into the modulation path to suppress distortion. this technique attenuates the in-band noise introduced by the output stage, and can tolerate large latency. a fully digital pulse density modulation (pdm) class d amplifier with output stage noise shaping is implemented on a pcb prototype. feedback loop functionality is verified experimentally, and a 10 db improvement in total harmonic distortion plus noise (thd+n) is realized.},}

TY - paper
TI - A Digital Class D Audio Amplifier with Pulse Density Modulation and Distortion Suppression Feedback Loop
SP - EP -
AU - McKenzie, Robert
AU - Li, Xinchang
AU - Snelgrove, Martin
AU - Ng, Wai Tung
PY - 2017
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2017 TY - paper
TI - A Digital Class D Audio Amplifier with Pulse Density Modulation and Distortion Suppression Feedback Loop
SP - EP -
AU - McKenzie, Robert
AU - Li, Xinchang
AU - Snelgrove, Martin
AU - Ng, Wai Tung
PY - 2017
JO - Journal of the Audio Engineering Society
IS -
VO -
VL -
Y1 - October 2017
AB - A novel fully digital Class D amplifier is presented in which the output stage error is digitized by a 10-bit ADC and fed back into the modulation path to suppress distortion. This technique attenuates the in-band noise introduced by the output stage, and can tolerate large latency. A fully digital Pulse Density Modulation (PDM) Class D amplifier with output stage noise shaping is implemented on a PCB prototype. Feedback loop functionality is verified experimentally, and a 10 dB improvement in Total Harmonic Distortion plus Noise (THD+N) is realized.