Self enabling signal conditioner for conditioning a crystal oscillator output signal into a compliant clock signal
Abstract:
A signal conditioner for conditioning a differential oscillation signal into a compliant clock signal including first and second signal paths and a coincident gate. The first signal path toggles a first binary signal in response to the differential oscillation signal when the differential oscillation signal reaches a small amplitude level. The second signal path toggles a second binary signal in response to the differential oscillation signal only when the differential oscillation signal reaches a large amplitude level that is greater than the small amplitude level. The coincident gate toggles the clock signal high only when the first and second binary signals are both high, and toggles the clock signal low only when the first and second binary signals are both low. When the clock signal begins toggling, it may skip one or more cycles but is nonetheless compliant in terms of timing and amplitude.
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