| 摘要 |
A voltage-controlled oscillator (VCO) according to an aspect of the present invention includes an oscillation unit and a delay time control unit. The oscillation unit generates an oscillation signal with a frequency determined by a VCO control signal. The delay time control unit adjusts a delay of the oscillation signal in response to a change of a power supply voltage. Such a VCO is advantageously used for minimizing signal skew in a phase-locked loop (PLL).
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