High-Frequency CMOS Continuous-Time Filters
نویسنده
چکیده
Fully-integrated, high-frequency continuous-time filters can be reafized in MOS technology using a frequency-locking approach to stabilize the time constants. A simple fufly-differential integrator, optimized for phase-error cancellation, forms the basic element; a complete filter consists of intercoupled integrators. The center frequency of the filter is Ioeked to an extemaf reference frequency by a phase-locked loop. A prototype sixth-order bandpass filter with a center frequency of 500 klfz dissipates 55 mW and occupies 4 mrr? in a 6 pm CMOS technology.
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تاریخ انتشار 1984