METHOD AND APPARATUS FOR CONVERTING A GAP-INFESTED READ-IN CLOCK INTO A GAP-FREE-READ-OUT CLOCK

摘要

An integrated circuit wherein no disturbances due to spikes occur is provided for converting a gap-infested clock into a gap-free clock. In a phase-locked loop the frequency of a read-in clock is supplied to a phase discriminator via a frequency divider and the frequency of a read-out clock is supplied to the phase discriminator via another frequency divider. A succession of clocks shifted in phase relative to one another is provided by a generator from an auxiliary frequency of a crystal oscillator which feeds an auxiliary successor sequence clock generator which provides a plurality of successor auxiliary clocks. Which of these clocks provides the read-out clock after a division in a frequency divider is defined by a switching frequency output by a frequency divider which is controlled by the phase discriminator.