| 摘要 |
PROBLEM TO BE SOLVED: To provide a method and a device to form a non-duplicate time signal. SOLUTION: A reference clock 300 is used, whose frequency is twice the operating frequency of an integrated circuit. The frequency of a main clock signal having a high level pulse width T9b nearly the same as a high level pulse width of the reference clock is a half of the frequency of the reference clock. Similarly a slave clock signal with a high level pulse width T10b nearly equal to the high level pulse width of the reference clock is generated, and the frequency of the slave clock is a half of the frequency of the reference clock. Either or both of the main clock signal and the slave clock signal are extended by the amount T13, T14 smaller than a low level pulse width of the reference clock by means of an analog delay means so that the main clock signal and the slave clock signal are not overlapped. When a transmission time of a circuit component is changed due to the operating temperature or the voltage, the analog delays T13, T14 are changed in proportion to compensate a change in the transmission time of the circuit component. |
