Related method and technology for voltage controlling oscillator
A voltage-controlled oscillation and voltage technology, which is applied in the automatic control of power, electrical components, etc., can solve problems such as easy introduction of jitter, easy occurrence of jitter, phase-locked circuit failure, etc.
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[0037] Please refer to figure 1 ; figure 1 It is a schematic functional block diagram of a typical voltage controlled oscillator 10 . The voltage controlled oscillator 10 is used to provide an oscillating signal (or clock) according to a control voltage Vctrl, so that the frequency of the oscillating signal corresponds to the voltage of the control voltage Vctrl. The VCO 10 is provided with a conversion circuit 12 , a replica bias circuit 14 and a ring oscillator 16 . The ring oscillator 16 is additionally provided with a plurality of ring-connected delayers Dp ( figure 1 represented by four delayers). exist figure 1 In the example of , each delayer Dp is provided with differential input terminals ip+ and ip- respectively to receive two input signals that are opposite to each other, and is provided with two output terminals op- and op+ to output two mutually inverse signals respectively. Inverted output signal.
[0038] In the voltage-controlled oscillator 10, the conver...
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