| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a clock generation circuit which can be commonly used in a plurality of different broadcasting systems and achieve simplification and miniaturization of a circuit composition. <P>SOLUTION: While using a voltage controlled oscillator 11 with a wide frequency variable range compared to a conventional voltage controlled crystal oscillator, using frequency dividers 12, 14 which can carry out variable setting of the division value, one set of the voltage controlled oscillator 11 can be commonly used for each broadcasting system by only reading out the respective dividing values of the frequency dividers 12, 14 from a frequency dividing value setting table 16 according to the broadcasting system of terrestrial digital broadcasting signals, and setting it. <P>COPYRIGHT: (C)2007,JPO&INPIT |
