| 摘要 |
A phase-locked loop system is provided. The system includes a charge pump, a voltage-controlled oscillator (VCO) and a bias converter. The charge pump outputs a control voltage according to a phase frequency detection signal, and generates an output current according to a bias signal. The VCO generates an output signal according to the control voltage. The bias converter is coupled between the VCO and the charge pump and for generating the bias signal according to the control voltage.
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