用于视频应用的连续时间低通滤波器

1998 Midwest Symposium on Circuits and Systems (Cat. No. 98CB36268) Pub Date : 1998-08-09 DOI:10.1109/MWSCAS.1998.759508

J. Sabadell, C. Aldea, S. Celma, P. Martínez

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引用次数: 0

摘要

本文提出了一种基于电流模式处理的连续时间4/sup /阶巴特沃斯低通滤波器。采用非常低成本的2.4 /spl mu/m CMOS工艺(Mietec)，电路占用2.8 mm/sup 2/，从a /spl plusmn/1.5 V电源消耗19 mW。给出了一个4.5 MHz ~ 12 MHz可调谐低通滤波器的实验结果，在10 MHz时动态范围为58 dB。

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Continuous time low-pass filter for video frequency applications

In this paper a continuous-time 4/sup th/ order Butterworth lowpass filter based on current-mode processing is presented for applications over the video frequency range. Using a very low-cost 2.4 /spl mu/m CMOS process (Mietec), the circuit occupies 2.8 mm/sup 2/ and consumes 19 mW from a /spl plusmn/1.5 V supply. Experimental results are given for a 4.5 MHz to 12 MHz tunable lowpass filter with 58 dB of dynamic range at 10 MHz.

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来源期刊

1998 Midwest Symposium on Circuits and Systems (Cat. No. 98CB36268)

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