A 6 Order 1.6 to 3.2GHz Tunable Low-Pass Linear Phase gm-C Filter for Fiber Optic Adaptive EDC Receivers
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چکیده
A 6th order low-pass 1.6 to 3.2GHz gm-C filter for fiber optic adaptive EDC receivers cascades three Bi-Quads permitting reduction of group delay variation down to 10ps. Cut-off frequency is tuned by switching CMOS varactors polarity. THD is below -40dB at 0.9Vpp-diff output. CTF is implemented in a 0.18 m SiGe process, it occupies 0.17mm and consumes 0.3W from 3.3V supply. Index Terms — Continuous time filters, Tunable filters, High-speed integrated circuits, Optical fiber dispersion
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تاریخ انتشار 2009