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Electronics Engineering
Waves Vibrations and Oscillations

Why RC oscillators are not used for high frequencies?


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2008-04-14 09:47:14
2008-04-14 09:47:14

The "C" in RC is capacitance, and at high frequencies, the C will shunt the signal more than at lower frequencies. The loss through the cap will climb right along with frequency. And as the cap's performance goes down, so, too, does the circuit performance. RC oscillator performance is far from linear at the top of the frequency range.

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