Title :
A Novel Biquad Filter Circuit for Continuous-Time Sigma-Delta Modulators
Author :
Kuang, Wensheng V. ; Wight, Jim S.
Author_Institution :
Samsung Telecommun. of America, Richardson, TX
Abstract :
A novel biquad circuit is presented that allows the loop filter of a high-order continuous-time sigma-delta modulator to be implemented by cascading low-order biquad sections, considerably easing the design and implementation of the high-order continuous-time sigma-delta modulator. Experiment on a 4th-order bandpass continuous-time sigma-delta modulator is conducted successfully and the results are presented.
Keywords :
band-pass filters; biquadratic filters; continuous time filters; sigma-delta modulation; 4th-order bandpass; biquad filter circuit; continuous-time sigma-delta modulators; high-order sigma-delta modulator; loop filter; low-order biquad sections; Band pass filters; Coupling circuits; Delay; Delta-sigma modulation; Feedback loop; Prototypes; Resistors; Resonator filters; Sampling methods; Transfer functions;
Conference_Titel :
Vehicular Technology Conference, 2006. VTC-2006 Fall. 2006 IEEE 64th
Conference_Location :
Montreal, Que.
Print_ISBN :
1-4244-0062-7
Electronic_ISBN :
1-4244-0063-5
DOI :
10.1109/VTCF.2006.599
