Filterless integrated class-D audio amplifier achieving 0.0012% THD+N and 96dB PSRR when supplying 1.2W

Digest of Technical Papers - IEEE International Solid-State Circuits Conference

Volumn , Issue , 2011, Pages 240-241

  Teplechuk, Mykhaylo ^a   Gribben, Tony ^a   Amadi, Christophe ^a  

^a DIALOG SEMICONDUCTOR   (Germany)

Author keywords

[No Author keywords available]

Indexed keywords

ELECTROMAGNETIC PULSE; ENERGY EFFICIENCY;

BATTERY POWERED; CLASS D AMPLIFIER; CLASS D AUDIO AMPLIFIER; FILTER-LESS; HIGH POWER EFFICIENCIES; MOBILE SYSTEMS; POWER SUPPLY NOISE REJECTION; SWITCHED MODE;

POWER AMPLIFIERS;

EID: 79955739197     PISSN: 01936530     EISSN: None     Source Type: Conference Proceeding    
DOI: 10.1109/ISSCC.2011.5746301     Document Type: Conference Paper

References (5)

1. P. Muggler, W. Chen, C. Jones, et. Al., "A Filter Free Class D Audio Amplifier with 86% Power Efficiency", IEEE ISCAS, pp. 1036-1039, May, 2004.
2. E. Gaalaas, B.Y. Liu, and N. Nishimura, "Integrated Stereo Delta-Sigma Class D Audio Amplifier," ISSCC Dig. Tech. Papers, pp. 120-121, February, 2005.
3. B. Forejt, V. Rentala, J.D. Arteaga, and G. Burra, "A 700+-mW Class D Design with Direct Battery Hookup in a 90-nm Process," IEEE J. Solid-State Circuits, vol. 40, no. 9, pp. 1880-1887, September, 2005.
4. M. A. Rojas-González and E. Sánchez-Sinencio "Two Class-D Audio Amplifiers with 89/90% Efficiency and 0.02/0.03% THD+N Consuming Less than 1mW of Quiescent Power," ISSCC Dig. Tech. Papers, pp. 450-452, February, 2009.
5. S. Samala, V. Mishra, and K. C. Chakravarthi, "45nm CMOS 8Ω Class-D Audio Driver with 79% Efficiency and 100dB SNR," ISSCC Dig. Tech. Papers, pp. 86-88, February, 2010.