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| A NEW MULTIFUNCTION SWITCHED-CURRENT BIQUADRATIC FILTER |
| Meng Xiangru①;Qiu Guanyuan② |
| ①University of Electronic Science and Technology of China, Chengdu 610054;②Xi'an Jiaotong University, Xi'an 710049 |
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Abstract A switched-current(SI) modified universal building-block(MUB) is proposed with low sensitivities as well as positive and negative outputs. Various basic operations of sampled-data signal processing can be performed by the MUB. Based on this building-block, a new SI high-Q biquadratic filter is generated from the switched-capacitor prototype by the means of signal flow graphes, which can obtain low-pass, high-pass, bandpass and band-reject filtering functions.
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Received: 21 September 1995
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1997, Vol. 19 
