Title :
Analog FIR filters by switched-capacitor techniques
Author_Institution :
Dept. of Electr. Eng., Rhode Island Univ., Kingston, RI, USA
fDate :
6/1/1990 12:00:00 AM
Abstract :
The implementation of general-purpose FIR (far infrared) filters by stray-insensitive SC (switched capacitor) techniques is addressed. First, a simple building block for an analog tapped delay line is introduced. The proposed cell comprises a single amplifier and is controlled by a multiphase clocking scheme. Then, it is shown how this circuit can be developed into a generic FIR filter cell without the need for additional amplifiers. The feasibility of the new building blocks is demonstrated by the example of a linear-phase low-pass filter design
Keywords :
analogue circuits; delay lines; low-pass filters; switched capacitor filters; FIR filters; analog tapped delay line; linear-phase low-pass filter design; multiphase clocking; stray insensitive filters; switched-capacitor techniques; Adders; Circuit topology; Clocks; Costs; Delay lines; Digital filters; Filtering; Finite impulse response filter; Low pass filters; Transversal filters;
Journal_Title :
Circuits and Systems, IEEE Transactions on
