The semiconductor integrated circuit incorporates a PLL circuit including a phase-frequency comparator 1, first and second charge pumps 2 and 3, a loop filter 4, a voltage-control oscillator 5 and a divider 6. The operation mode of the PLL circuit includes a standby state where locking is stopped, a...http://www.google.de/patents/US7859345?utm_source=gb-gplus-sharePatent US7859345 - Semiconductor integrated circuit
