A Very Low Power 10MHz CMOS Continuous-Time Bandpass Filter with On-Chip Automatic Tuning(Electronic Circuits)
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概要
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A second-order CMOS continuous-time bandpass filter with a tuneable 4-12MHz center frequency (f_c) is presented. The Design has been done by using a new second-order block which is based on G_m-C method. This G_m-C filter achieves a dynamic range of 30dB for 1% IM3, and Q equal to 58 at 12MHz, while dissipating only 10.5mW from 3.3V power supply in 0.35μm CMOS process. The on-chip indirect automatic tuning circuit uses a phase-locked loop which sets filter center frequency to an external reference clock.
- 2006-07-01
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