| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an FM channel selection circuit that improves precision of presetting of FM broadcast signals. Ž<P>SOLUTION: In a reception mode for an FM broadcast signal, a local oscillation frequency corresponding to channel data next is set (step S2). It is determined whether an operation voltage includes an error (step S3). If it is determined in the step S3 that the operation voltage includes an error, that is, a voltage drift, an advance to a step S4 is made to correct local oscillation frequency data (step S4). Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
|
