Generating Switched-Capacitor-Filter Clocks - Maxim
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چکیده
The first major concern in clocking an SCF is the clock's duty cycle. Deviation from the range specified by most manufacturers (40% to 60%) produces inadequate settling of the switched-capacitor element, which can cause signal distortion, inaccurate filter response, and signal attenuation. Most sources inherently produce the desired 50% duty cycle; if not, that performance can be ensured by design in nearly all cases.
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