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Fiber Optic Receiver with Quantizer and Clock Recovery and Data Retiming AD807
reliance on external components such as a crystal or a SAW filter, to aid frequency acquisition. The AD807 acquires frequency and phase lock on input data using two control loops that work without requiring external control. The frequency acquisition control loop initially acquires the frequency of the input data, acquiring frequency lock on random or scrambled data without the need for a preamble. At frequency lock, the frequency error is zero and the frequency detector has no further effect. The phase acquisiti
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