| 摘要 |
PURPOSE: To obtain an output pulse signal that is delayed only by a desired delay time by generating a delay current pulse signal based on an input pulse signal and a delay control signal in each edge of the input pulse signal and adding both of them. CONSTITUTION: The 1st comparator 12 receives an input pulse signal and the 1st reference signal REF1 and outputs a corresponding pulse signal. The input pulse signal and the signal REF1 are also supplied to the input terminal of each opposite polarity of the 2nd and 3rd comparators 14 and 16. Output signals of the comparators 14 and 16 are inputted to a pulse shaping circuit 18 and shaped into a pulse signal that corresponds to each edge of the input pulse signal. An output signal of the circuit 18 is added to a pulse output signal of the comparator 12 and equally and effectively changes the inclination of previous and following edges of the pulse signal. As a result, the pulse signal is effectively delayed. |
