| 摘要 |
PURPOSE:To obtain a stable multiple signal processing circuit without adjustment by digitizing a phase synchronizing circuit. CONSTITUTION:An analog digital converted input signal (synchronized frequency signal) A is supplied through a latch circuit 11 to a gate circuit 13, the output of the gate circuit 13 is integrated by an integrating circuit 14 and thus, amplitude information of 0 or 1 is obtained. By the amplitude information, the frequency-dividing ratio of a frequency-dividing circuit 7 to frequency-divide a reference signal B is controlled, and by using the output of the frequency- dividing circuit 17, the conducting timing signal of the gate circuit 13 is obtained. Thus, the stability of a phase synchronizing group is obtained, and the phase control with the accuracy finer than the sampling period of the input signal can be obtained. |
