A 3.4 W Digital-In Class-D Audio Amplifier in 0.14 $\mu $m CMOS

@article{Dooper2012A3W,
  title={A 3.4 W Digital-In Class-D Audio Amplifier in 0.14 \$\mu \$m CMOS},
  author={Lutsen Dooper and Marco Berkhout},
  journal={IEEE Journal of Solid-State Circuits},
  year={2012},
  volume={47},
  pages={1524-1534}
}
In this paper a class-D audio amplifier for mobile applications is presented realized in a 0.14 μm CMOS technology tailored for mobile applications. The amplifier has a simple PDM-based digital interface for audio and control that requires only two pins and enables assembly in 9-bump WL-CSP. The complete audio path is discussed that consists of a Parser, Digital PWM controller, 1-bit DA-converters, analog feedback loop and the Class-D power stage. A reconfigurable gate driver is used that… CONTINUE READING

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References

Publications referenced by this paper.
Showing 1-10 of 12 references

A review and comparison of pulse width modulation (PWM) methods for analog and digital input switching power amplifiers

K. Nielsen
presented at the 102nd Conv. AES, Munich, Germany, 1997, Preprint 4446. • 1997
View 11 Excerpts
Highly Influenced

True Filterless Class-D Audio Amplifier

IEEE Journal of Solid-State Circuits • 2011
View 1 Excerpt

45nm CMOS 8Ω Class-D audio driver with 79% efficiency and 100dB SNR

2010 IEEE International Solid-State Circuits Conference - (ISSCC) • 2010
View 1 Excerpt

Class-D Audio Amplifiers in Mobile Applications

IEEE Transactions on Circuits and Systems I: Regular Papers • 2010
View 5 Excerpts

Filterless multi-level delta-sigma class-D amplifier for portable applications

2009 IEEE International Symposium on Circuits and Systems • 2009
View 3 Excerpts

Clock jitter in class-D audio power amplifiers

ESSCIRC 2007 - 33rd European Solid-State Circuits Conference • 2007
View 1 Excerpt

One-bit audio: An overview

D. Reefman, E. Janssen
J. Audio Eng. Soc., vol. 52, no. 3, pp. 166–189, Mar. 2004. • 2004
View 1 Excerpt

An integrated 200W class D audio amplifier

Proceedings of the 28th European Solid-State Circuits Conference • 2002
View 2 Excerpts

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