| 摘要 |
PROBLEM TO BE SOLVED: To provide a variable frequency divider circuit that is synchronized with an input reference clock and provides frequency division clocks with a different frequency division ratio and to provide a clock frequency division method using the circuit. SOLUTION: The variable frequency divider circuit comprises frequency divider circuit sections 12, 14 with a different frequency division ratio that receive input reference clocks, a selection section 16 that selects and outputs a frequency division clock from the frequency divider circuit sections 12, 14, and a control section 22 that monitors the frequency division clock of the frequency divider circuit sections 12, 14 to control the selection of the selection section 16 on the basis of it. |
