| 摘要 |
A crystal oscillation circuit includes a main oscillation circuit, an auxiliary oscillation circuit, and a control circuit. The main oscillation circuit has a crystal resonator. The auxiliary oscillation circuit increases an exciting current of the crystal resonator to assist the start of oscillation of the main oscillation circuit. The control circuit connects the auxiliary oscillation circuit parallel to the main oscillation circuit at the start of oscillation to increase an exciting current of the crystal resonator. |
