A self oscillating class D audio amplifier with 0.0012% THD+N and 116.5 dB dynamic range
A low distortion third-order self-oscillating class D audio amplifier is integrated in a 0.7-μm CMOS process. It can deliver 1.4 W into an 8 Ω load with 5 V power supply. The presented amplifier eliminates the requirement for a high quality carrier. It achieves a dynamic range (DR) of 116.5 dB, and...
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| Format: | Tagungsbericht |
| Sprache: | eng |
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| Zusammenfassung: | A low distortion third-order self-oscillating class D audio amplifier is integrated in a 0.7-μm CMOS process. It can deliver 1.4 W into an 8 Ω load with 5 V power supply. The presented amplifier eliminates the requirement for a high quality carrier. It achieves a dynamic range (DR) of 116.5 dB, and a peak THD+N of 0.0012% for a 1 kHz sinusoidal input. The efficiency is 84.5%. The area of the amplifier is 6 mm 2 . |
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| ISSN: | 0886-5930 2152-3630 |
| DOI: | 10.1109/CICC.2010.5617615 |