In the stereo audio DAC here presented, the tradeoff between area-power consumption-SNRout -dynamic range is optimized for the case of a 96 -dB audio system. Using a single-opamp switched-capacitor structure for the reconstruction filter, a hybrid FIR/IIR transfer function allows to reject out-of-band noise. This circuit solution strongly reduces area and power consumption. In a 0.13-μm CMOS technology, the stereo DAC achieves a 97-dB dynamic range and a 39-dB SNRoUt with a 0.22-mm2 area and 7.25-mW power consumption per channel.

Colonna, V., Annovazzi, M., Boarin, G., Gandolfi, G., Stefani, F., & Baschirotto, A. (2005). A 0.22-mm^2 7.25-mW per-channel audio stereo-DAC with 97-dB DR and 39-dB SNR_out. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 40(7), 1491-1498 [10.1109/JSSC.2005.847486].

A 0.22-mm^2 7.25-mW per-channel audio stereo-DAC with 97-dB DR and 39-dB SNR_out

BASCHIROTTO, ANDREA
2005

Abstract

In the stereo audio DAC here presented, the tradeoff between area-power consumption-SNRout -dynamic range is optimized for the case of a 96 -dB audio system. Using a single-opamp switched-capacitor structure for the reconstruction filter, a hybrid FIR/IIR transfer function allows to reject out-of-band noise. This circuit solution strongly reduces area and power consumption. In a 0.13-μm CMOS technology, the stereo DAC achieves a 97-dB dynamic range and a 39-dB SNRoUt with a 0.22-mm2 area and 7.25-mW power consumption per channel.
Articolo in rivista - Articolo scientifico
Scientifica
Digital-to-analog converters; Low power; Sigma-delta modulation; Switched-capacitor filters;
English
Colonna, V., Annovazzi, M., Boarin, G., Gandolfi, G., Stefani, F., & Baschirotto, A. (2005). A 0.22-mm^2 7.25-mW per-channel audio stereo-DAC with 97-dB DR and 39-dB SNR_out. IEEE JOURNAL OF SOLID-STATE CIRCUITS, 40(7), 1491-1498 [10.1109/JSSC.2005.847486].
Colonna, V; Annovazzi, M; Boarin, G; Gandolfi, G; Stefani, F; Baschirotto, A
File in questo prodotto:
Non ci sono file associati a questo prodotto.

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/10281/36637
Citazioni
  • Scopus 21
  • ???jsp.display-item.citation.isi??? 15
Social impact