| 摘要 |
PROBLEM TO BE SOLVED: To provide a digital broadcasting receiver, which maintains a high receiving quality without providing plural systems of bus lines and without complicating a control system. SOLUTION: This digital broadcasting receiver is provided with a local oscillation circuit 4 for generating a local oscillation signal, a tuning PLL circuit 12 for PLL-controlling the circuit 4, so that the local oscillation signal has a frequency corresponding to a channel to be tuned by the local oscillation signal based on tuning information from a microcomputer 14, and a switch 13 for turning on/off a system control bus 18 for connecting the microcomputer 14 and the circuit 12. This switch 13 is on/off-controlled by a system reset signal 19 of digital demodulation.
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