| 摘要 |
PURPOSE:To realize the adjustment of the phase of a clock signal with a small scale circuit and low power consumption. CONSTITUTION:A differentiation circuit 2 detects a rising/falling timing of a clock signal recovered by a clock recovery section 1, a phase counter 3 is initialized by the rising or falling timing of the clock signal to count a phase shift. A count decoder 4 generates a timing pulse deciding the phase based on the count output and the phase shift information, a latch circuit 5 latches the clock outputted from the clock recovery section 1 in the timing of the pulse and the decoder 6 decides the phase of the clock based on phase shift information and outputs the clock signal whose phase is adjusted. |
