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Start Over Author "Chen, Dianyu" Publisher springer science and business media llc
9 results on '"Chen, Dianyu"'

7. A 4th order fully integrated active RC complex filter with novel automatic tuning systems

Author

Qi Feitao Qi Feitao, Qin Shicai, Sun Weiming, Xiong Shao-Zhen, and Chen Dianyu

Subjects
Total harmonic distortion, Voltage-controlled filter, Control theory, Computer science, Low-pass filter, Bandwidth (signal processing), Butterworth filter, Electrical and Electronic Engineering, Center frequency, High-pass filter, Active filter
Abstract

This letter introduces a 4th order active RC complex filter with 1.5MHz center frequency and 1MHz bandwidth. The total harmonic distortion of the filter is less than −60dB and the image rejection ratio is greater than 60dB. A novel technique is also proposed in this letter to automatically adjust the variation of the time constant. The advantages of the proposed method are its high precision and simplicity. Using 5bits control words, the tuning error is less than ±1.6%.

Published
2007

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