High-frequency clock generator with low power consumption

Details High-frequency clock generator with low power consumption High-frequency clock generator with low power consumption

2006-11-07

2006-11-07

Kim, Kevin (Department: 2611)

Pulse or digital communications

Synchronizers

Phase displacement, slip or jitter correction

C327S119000, C327S122000

Reexamination Certificate

active

07133484

ABSTRACT:
A high-frequency clock generator with low power consumption is made up of a single phase-locked loop and a serially-connected sampling circuit coupled thereto. The phase-locked loop includes a voltage-controlled oscillator which is configured to provide multiple low-frequency oscillating clock signals each of which has the same frequency but with different phases. The sampling circuit includes at least one stage of sampler, and each stage of sampler includes at least one sampling unit. The sampling circuit samples the low-frequency oscillating clock signals with different phase, in order to generate a clock signal with a frequency being 2ntimes as the frequency of the low-frequency oscillating clock signals generated by the phase-locked loop, and where n is the number of stages of the sampler in the sampling circuit.

REFERENCES:
patent: 6008676 (1999-12-01), Lee et al.
patent: 6388492 (2002-05-01), Miura et al.

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