| 摘要 |
A clock generating apparatus and a method thereof are provided to generate a frequency lower than a standard input frequency of a clock source by dividing a compensating operation clock frequency to drive a system and compensating for the clock. In a clock generating apparatus, a frequency divider(100) generates a standard input clock frequency of a clock source. A clock generator(200) generates an operation clock frequency by tuning and varying a frequency of the standard input clock frequency. The operation clock frequency drives a system. The clock generator(200) generates a clock having a frequency lower than the standard input clock frequency by dividing the operation clock frequency. An output determining part(400) outputs the generated clock after dividing the operation clock frequency in a power save mode of the system. The output determining part(400) outputs the operation clock as a clock source in a normal operation mode. |
