A 1.3-mW per-channel 103-dB SNR stereo audio DAC with class-D head-phones amplifier in 65nm CMOS

@article{Lee2008A1P,
  title={A 1.3-mW per-channel 103-dB SNR stereo audio DAC with class-D head-phones amplifier in 65nm CMOS},
  author={Y. Lee and Chun-Kyun Seok and Bong-Joo Kim and Seung-Bin You and Wang-Seup Yeum and Ho-Jin Park and Y. Jun and B. Kong and Jae-Whui Kim},
  journal={2008 IEEE Symposium on VLSI Circuits},
  year={2008},
  pages={176-177}
}
  • Y. Lee, Chun-Kyun Seok, +6 authors Jae-Whui Kim
  • Published 2008
  • Computer Science
  • 2008 IEEE Symposium on VLSI Circuits
  • The stereo audio DAC with novel single-ended class-D amplifier achieving a 103-dB SNR is fully integrated in a 65 nm CMOS technology. Novel asymmetric pulse-width modulation (PWM) is applied to minimize switching noise and nonlinearity in the class-D amplifier. The adjustable delta-sigma modulator is also used to suppress supply-voltage modulation. All the functions needed for portable audio playback are implemented in a 0.53-mm2 area dissipating only 1.3-mW per channel from a 2.5-V supply. 
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    References

    SHOWING 1-6 OF 6 REFERENCES
    Integrated stereo delta-sigma class D amplifier
    • 52
    An integrated 200W class D audio amplifier
    • M. Berkhout
    • Computer Science, Engineering
    • Proceedings of the 28th European Solid-State Circuits Conference
    • 2002
    • 146
    Class D digital power amp (PurePath Digital/spl trade/) high Q musical content
    • C. Neesgaard, R. Antley, +7 authors A. Zhao
    • Physics
    • 2004 Proceedings of the 16th International Symposium on Power Semiconductor Devices and ICs
    • 2004
    • 5
    Digital Power Amp (PurePath Digital
    • High Q Musical Content," ISPSD,
    • 2004
    Naoaki Nishimura , " Integrated Stereo Delta - Sigma Class D Amplifier , " ISSCC