| 摘要 |
PURPOSE:To provide a PLL circuit capable of reducing noise and jitter. CONSTITUTION:In the PLL circuit 8 constituted of a phase comparator 2, a loop filter 3 and a voltage controlling oscillator 4, the 1st resistor R1 is connected between the output terminal 9 of, the filter 3 and a power supply terminal 10, the 2nd resistor R2 is connected between the terminal 9 and ground 11, and when the PLL circuit 8 is turned to a lock state, noise is hardly added to the terminal 9 of the loop filter 3. |
