A 5th-order switched-capacitor complex filter for low-IF narrowband wireless receivers

Abstract

A 5th-order switched-capacitor (SC) complex filter is implemented in 0.2-µm CMOS technology. In order to reduce the die size and current consumption of the complex filter, a novel SC integrator is developed. The filter is centered at 24.8 kHz with bandwidth of 20.2 kHz. The Image channel is attenuated by more than 40 dB. The in-band 3rd order harmonic input… (More)

Topics

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