| An 18-bit high performance audio ∑-△D/A converter |
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| 引用本文： | 张昊,黄小伟,韩雁,张泽松,韩晓霞,王昊,梁国.An 18-bit high performance audio ∑-△D/A converter[J].半导体学报,2010(7). |
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| 作者姓名： | 张昊 黄小伟 韩雁 张泽松 韩晓霞 王昊 梁国 |
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| 作者单位： | Institute of Microelectronics and Photoelectronics;Zhejiang University;CISD;Institute of Microelectronic CAD;Department of Electronic Engineering;City University of Hong Kong; |
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| 摘 要： | A multi-bit quantized high performance sigma-delta(Σ-Δ) audio DAC is presented.Compared to its singlebit counterpart,the multi-bit quantization offers many advantages,such as simplerΣ-Δmodulator circuit,lower clock frequency and smaller spurious tones.With the data weighted average(DWA) mismatch shaping algorithm,element mismatch errors induced by multi-bit quantization can be pushed out of the signal band,hence the noise floor inside the signal band is greatly lowered.To cope with the crosstalk between ...
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