A 0.49-13.3 MHz Tunable Fourth-Order LPF with Complex Poles Achieving 28.7 dBm OIP3.

Pedram Payandehnia,Hamidreza Maghami,Hossein Mirzaie,Manjunath Kareppagoudr,Siladitya Dey,Massoud Tohidian,Gabor C. Temes

IEEE Transactions on Circuits and Systems I: Regular Papers（2018）

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摘要

A novel switched-capacitor low-pass filter architecture is presented. In the proposed scheme, a feedback path is added to a charge-rotating real-pole filter to implement complex poles. The selectivity is enhanced, and the in-band loss is reduced compared with the real-pole filter. The output thermal noise level and the tuning range are both close to those of the real-pole filter. These features ma...

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关键词

Thermal noise,Linearity,Noise level,Capacitors,Topology,Clocks,Tuning

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