| 摘要 |
An oscillation frequency of a VCXO is controlled based on a phase difference between a reference phase signal outputted from a reference phase generation circuit and a feedback phase signal outputted from a feedback phase generation circuit, an oscillation frequency of a VCO is controlled based on a phase difference between an output clock of the VCXO and an audio clock obtained from a divider circuit, and a clock outputted from the VCO is determined as a restored audio clock.
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