US 2003/0210758 A1 · Recovered clock generator with high phase resolution and recovered clock generating method

Abstract

The present invention generally relates to a generator and a method for generating a recovered clock with high phase resolution. The recovered clock generator comprises a multi-phase clock generator to generate a plurality of multi-phase clock signals with a predetermined frequency higher than a target frequency; a phase selector for receiving the multi-phase clock signals and outputting a selected-phase clock signal according to a selecting signal; and a frequency divider for dividing the frequency of the selected-phase clock signal so as to generate a recovered clock with the target frequency. The recovered clock generator further comprises a phase interpolation unit between the multi-phase clock generator and phase selector. Therefore, the recovered clock generator of the invention can be implemented with less circuit space, and the wires of the layout will not interference the accuracy and the monotonic of the selected clock.

Claims12

Dependent claims

A recovered clock generator, comprising:

a multi-phase clock generator for generating a plurality of multi-phase clock signals;
a phase selector for outputting a selected-phase clock signal from the multi-phase clock signals according to a selecting signal;
and
a frequency divider for generating a recovered clock signal according to the selected-phase clock signal;
wherein the frequency of each of the multi-phase clock signals is higher than that of the recovered clock signal.

2 more elements

Dependencies are inferred from the claim text.

Recovered clock generator with high phase resolution and recovered clock generating method

Life of this patent

Recovered clock generator with high phase resolution and recovered clock generating method

Life of this patent

Abstract

Claims12