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Definition of "Crystal Filter" |
A filter circuit that uses a piezoelectric crystal to provide the resonance in the circuit. / Crystal Filter is an electronic filter that uses quartz crystals for resonators. Quartz crystals are piezoelectric, so their mechanical characteristics can affect electronic circuits. / A sinusoidal oscillator is one that will produce output pulses at a predetermined frequency for an indefinite period of time; that is, it operates continuously. Many electronic circuits in equipment such as radar require that an oscillator be turned on for a specific period of time and that it remain in an off condition until required at a later time. These circuits are referred to as pulsed oscillator or ringing oscillator. They are nothing more than sine-wave oscillators that are turned on and off at specific times. |
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