| 摘要 |
<p>There is provided a voltage controlled ring oscillator having a plurality of ring-connected amplifiers (401) and also having a plurality of variable capacitance elements (502a,502b) which are connected to the respective amplifiers and the capacitances of which are varied by a voltage control. A plurality of load resistors (402) and a plurality of tail current sources (403) are connected to the respective amplifiers.</p> |
