Asynchronous sigma-delta modulator with noise shaping

被引：1
|
作者：
Chen, Wei [1 ]
Papavassiliou, C. [1 ]
机构：
[1] Univ London Imperial Coll Sci Technol & Med, Dept Elect & Elect Engn, London, England
来源：
ELECTRONICS LETTERS | 2013年 / 49卷 / 24期
关键词：
asynchronous circuits; sigma-delta modulation; asynchronous sigmaaEuro"delta modulator; first-order noise shaping; loop filter; SNDR;
D O I：
10.1049/el.2013.3407
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
A novel architecture of an asynchronous sigma-delta modulator with noise shaping is introduced. Compared with the conventional solution, the proposed modulator achieves first-order noise shaping without an additional loop filter. With the same sampling frequency, the improvement of the SNDR of the asynchronous sigma-delta modulator can be over 20 dB.
引用
收藏
页码：1520 / 1521
页数：2
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