A phase locked loop device and a digital phase locked loop device having a plurality of sub feedback loops are provided. The phase locked loop device includes a voltage controlled oscillator for outputting a frequency corresponding to an input voltage, a comparator for comparing a reference signal provided from the outside with an output signal outputted from the voltage controlled oscillator, and generating a first control voltage A second control voltage generator for generating a second control voltage corresponding to the output signal of the voltage controlled oscillator and feeding back the second control voltage to the voltage controlled oscillator, A first switch that is turned on and off by a first control signal and pulls down a voltage of a first node located at one end of the capacitor; A current source coupled to the first node and providing charge to the capacitor, And a second switch having one end connected to the first node and the other end electrically connected to the voltage controlled oscillator.
展开▼
