• DocumentCode
    1905155
  • Title

    A 0.22mm2 7.25mW per-channel audio stereo-DAC with 97dB-DR and 39dB SNRout

  • Author

    Colonna, V. ; Annovazzi, M. ; Boarin, G. ; Gandolfi, G. ; Stefani, F. ; Baschirotto, A.

  • Author_Institution
    STMicroelectron., Cornaredo, Italy
  • fYear
    2004
  • fDate
    21-23 Sept. 2004
  • Firstpage
    155
  • Lastpage
    158
  • Abstract
    In the stereo audio DAC presented here, the trade-off between area-power consumption-SNRout-dynamic range is optimized for the case of a 96 dB audio system. Using a single-op amp switched capacitor structure for the reconstruction filter, a hybrid FIR/IIR transfer function allows it 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.
  • Keywords
    CMOS integrated circuits; FIR filters; IIR filters; audio equipment; audio signal processing; digital-analogue conversion; operational amplifiers; signal reconstruction; switched capacitor filters; 0.13 micron; 7.25 mW; 96 dB; CMOS; area-power consumption-SNRout-dynamic range tradeoff; audio stereo-DAC; dynamic range; hybrid FIR/IIR transfer function; out-of-band noise rejection; single-op amp switched capacitor structure; switched capacitor reconstruction filter; Audio systems; CMOS technology; Circuit noise; Costs; Energy consumption; Filters; Power generation; Signal to noise ratio; Transfer functions; Voltage;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    Solid-State Circuits Conference, 2004. ESSCIRC 2004. Proceeding of the 30th European
  • Print_ISBN
    0-7803-8480-6
  • Type

    conf

  • DOI
    10.1109/ESSCIR.2004.1356641
  • Filename
    1356641
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=1905155