• DocumentCode
    2660765
  • Title

    A 5.2mW, 0.0016% THD up to 20kHz, ground-referenced audio decoder with PSRR-enhanced class-AB 16Ω headphone amplifiers

  • Author

    Wen, Shon-Hang ; Yang, Cheng-Chung

  • Author_Institution
    MeditTek Inc., Hsinchu, Taiwan
  • fYear
    2012
  • fDate
    13-15 June 2012
  • Firstpage
    20
  • Lastpage
    21
  • Abstract
    A low-power ground-referenced audio decoder with PSRR-enhanced class-AB headphone amplifiers presents <;0.0016% THD in the whole audio band against the supply ripple by a negative charge-pump. Realized in the 40nm CMOS, the fully-integrated stereo decoder achieves 91dB SNDR and 100dB dynamic range while driving a 16Ω headphone load and consumes 5.2mW from a 1.8V power supply. The core area is 0.093mm2/channel only.
  • Keywords
    CMOS integrated circuits; audio coding; audio-frequency amplifiers; charge pump circuits; decoding; harmonic distortion; headphones; CMOS; PSRR-enhanced class-AB 16Ω headphone amplifiers; audio band; fully-integrated stereo decoder; ground-referenced audio decoder; headphone load; negative charge-pump; power 5.2 mW; size 40 nm; voltage 1.8 V; CMOS integrated circuits; Charge pumps; Decoding; Headphones; Manganese; Noise; Phasor measurement units; Class-AB; Ground-referenced; PSRR-enhanced;
  • fLanguage
    English
  • Publisher
    ieee
  • Conference_Titel
    VLSI Circuits (VLSIC), 2012 Symposium on
  • Conference_Location
    Honolulu, HI
  • Print_ISBN
    978-1-4673-0848-9
  • Electronic_ISBN
    978-1-4673-0845-8
  • Type

    conf

  • DOI
    10.1109/VLSIC.2012.6243769
  • Filename
    6243769
    • Link To Document
    https://search.isc.ac/dl/search/defaultta.aspx?DTC=49&DC=2660765