| 摘要 |
PURPOSE:To prevent the deviation of the sampling time and to improve the reliability by setting the count time of a sampling indication means to the sampling time. CONSTITUTION:The rise of a reception signal is detected by a rise detection circuit 20 with the accuracy within one period of a clock signal phi, and the sampling time is set by the count number of the clock signal phi. As a result, since the sampling timing of the reception signal will not change even if temperature changes, the stable and highly reliable demodulation can be carried out. |
