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In active holdover mode, how long can the CDC7005 continue to provide the last known phase and frequency in the case of a missing reference clock?

April 26, 2017active Case CDC7005 Continue Frequency holdover known mode phase

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In active holdover mode, how long can the CDC7005 continue to provide the last known phase and frequency in the case of a missing reference clock?

1 Answer

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• The reference clock has to come back within 100 clock cycles and the filter circuitry must be designed carefully so that it has low leakage current.