Digital tuning of high-order high-Q continuous-time filters

被引：5
|
作者：
Sumesaglam, T [1 ]
Karsilayan, AI [1 ]
机构：
[1] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA
来源：
ELECTRONICS LETTERS | 2002年 / 38卷 / 19期
关键词：
D O I：
10.1049/el:20020720
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 digital tuning scheme for automatic tuning of high-order high-Q continuous-time filters is proposed. The scheme uses phase information for both centre frequency and Q tuning, and does not rely on the relation between the passband gain and Q factor. Digital control of frequency and Q tuning loops improves the stability by enabling only one loop at a given tuning cycle. High-order filter tuning is performed without separating individual sections, eliminating switches and their parasitics.
引用
收藏
页码：1076 / 1078
页数：3
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