A 100-dB gain-corrected delta-sigma audio DAC with headphone driver

Ruopeng Wang; Sang Ho Kim; Sang Hyeon Lee; Seung Bin You; Jae Whui Kim; Un Ku Moon; Gabor C. Temes

doi:10.1007/s10470-007-9033-0

A 100-dB gain-corrected delta-sigma audio DAC with headphone driver

Ruopeng Wang, Sang Ho Kim, Sang Hyeon Lee, Seung Bin You, Jae Whui Kim, Un Ku Moon, Gabor C. Temes

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

An oversampled digital-to-analog converter (DAC) with a 100-dB A-weighted dynamic range is presented. It uses a switched-capacitor (SC) array to transfer the sampled charges directly into the headphone driver. The overall DAC gain is precisely controlled by a novel reference stage. A new dynamic element matching algorithm, based on split-set data-weighted averaging (SDWA), is used to improve the dynamic range and to reduce the nonlinearity caused by mismatches in the multibit DAC.

Original language	English
Pages (from-to)	27-31
Number of pages	5
Journal	Analog Integrated Circuits and Signal Processing
Volume	51
Issue number	1
DOIs	https://doi.org/10.1007/s10470-007-9033-0
State	Published - Apr 2007
Externally published	Yes

Funding

Acknowledgements This project was funded by Samsung Electronics. The authors are grateful to Dr. J. Steensgaard for useful discussions.

Funders	Funder number
Samsung

Keywords

Audio
DAC
Delta-sigma
SDWA
Switched-capacitor

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10.1007/s10470-007-9033-0

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abstract = "An oversampled digital-to-analog converter (DAC) with a 100-dB A-weighted dynamic range is presented. It uses a switched-capacitor (SC) array to transfer the sampled charges directly into the headphone driver. The overall DAC gain is precisely controlled by a novel reference stage. A new dynamic element matching algorithm, based on split-set data-weighted averaging (SDWA), is used to improve the dynamic range and to reduce the nonlinearity caused by mismatches in the multibit DAC.",

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AU - Kim, Jae Whui

AU - Moon, Un Ku

AU - Temes, Gabor C.

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AB - An oversampled digital-to-analog converter (DAC) with a 100-dB A-weighted dynamic range is presented. It uses a switched-capacitor (SC) array to transfer the sampled charges directly into the headphone driver. The overall DAC gain is precisely controlled by a novel reference stage. A new dynamic element matching algorithm, based on split-set data-weighted averaging (SDWA), is used to improve the dynamic range and to reduce the nonlinearity caused by mismatches in the multibit DAC.

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A 100-dB gain-corrected delta-sigma audio DAC with headphone driver

Abstract

Funding

Keywords

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