A Radio-Frequency Tunable Active Filter
An Elliptic Continuous-Time CMOS Filter with On-Chip Automatic Tuning
Novel Automatic Tuning Method of RC Filter Using a Digital-DLL Technique
A Low-Power Wideband Reconfigurable Integrated Active-RC Filter With 73dB SFDR
Active RC Filter Buiding Blocks Using Frequency Emphasizing Networks
Fully Integrated Active RC Filters in MOS Technology