5.3 A 2×70W monolithic five-level Class-D audio power amplifier. - Mikkel Hoyerby; Jorgen Kragh Jakobsen; Jesper Midtgaard; Thomas Holm Hansen; Allan Nogueras Nielsen; Hans Hasselby-Andersen (ISSCC, 2016)

A 2×70W Monolithic Five-Level Class-D Audio Power Amplifier in 180 nm BCD. - Mikkel Hoyerby; Jorgen Kragh Jakobsen; Jesper Midtgaard; Thomas Holm Hansen (IEEE J. Solid State Circuits, 2016)