Title of article
Design of fourth-order ΔΣ modulator for the D/A conversion of audio signals
Author/Authors
Lee، نويسنده , , Joo-Ae and Sohn، نويسنده , , Young-Chul and Kim، نويسنده , , Sun-Ho and Kim، نويسنده , , Daejeong and Min، نويسنده , , Kyeong-Sik and Kim، نويسنده , , Dong Myong Kim، نويسنده ,
Issue Information
دوماهنامه با شماره پیاپی سال 2004
Pages
5
From page
55
To page
59
Abstract
This paper describes an efficient circuit technique to minimize the hardware consumption for a digital fourth-order single loop ΔΣ modulator. The modulator employs a simple bit-shifting and the ROM selection scheme for multiplications and the new buffer-and-routing ROM structure. Fabricated in a standard digital 0.35 μm CMOS technology, the modulator achieves a signal-to-noise ratio (SNR) of 96 dB with an oversampling ratio of 256 under the supply of 2.0 V.
Keywords
Delta–sigma , Noise-shaping , D/A converter , Buffer-and-routing method
Journal title
Current Applied Physics
Serial Year
2004
Journal title
Current Applied Physics
Record number
1769519
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