A novel automatic tuning scheme for high-frequency high-Q continuous-time filters

被引：2
|
作者：
Karsilayan, AI [1 ]
机构：
[1] Texas A&M Univ, Dept Elect Engn, College Stn, TX 77843 USA
来源：
2001 SOUTHWEST SYMPOSIUM ON MIXED-SIGNAL DESIGN | 2001年
关键词：
D O I：
10.1109/SSMSD.2001.914951
中图分类号：
TP301 [理论、方法];
学科分类号：
081202 ;
摘要：
An automatic tuning scheme for high-frequency high-Q continuous time biquadratic filters is proposed. The method is based on tuning the slope of the phase response around the pole frequency. The value of Q is digitally controlled and does not depend on the filter's bandpass gain, which may be quite different than Q in the presence of dominant parasitics. Therefore, very high-frequency high-Q filters can be tuned accurately. Digital phase locked loops and frequency dividers are employed by the tuning circuit.
引用
收藏
页码：126 / 130
页数：5
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