| Clock Generator |
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A clock generator is a circuit that produces a timing signal (known as a Clock Signal and behaves as such) for use in synchronizing a circuit's operation. It can range from a simple symmetrical Square Wave to more complex arrangements. The basic parts that all clock generators share are a resonant circuit and an amplifier. The resonant circuit is usually a Quartz Piezo-electric Oscillator , although simpler Tank Circuit s and even RC Circuit s may be used. The Amplifier circuit usually inverts the signal from the oscillator and feeds a portion back into the oscillator to maintain oscillation. The generator may have additional sections to modify the basic signal. The 8088 for instance, used a 2/3rds duty cycle clock, which required the clock generator to incorporate logic to convert the 50/50 duty cycle which is typical of raw oscillators. |
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