Spread-spectrum clock generator

Details Spread-spectrum clock generator Spread-spectrum clock generator

2008-11-18

2010-02-02

Cox, Cassandra (Department: 2816)

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Clock or pulse waveform generating

C327S298000

Reexamination Certificate

active

07656214

ABSTRACT:
A spread-spectrum clock generator is provided, which includes a modulation module and a voltage-controlled delay line (VCDL). The modulation module provides a control voltage. The VCDL is coupled to the modulation module and is configured for modulating the frequency of an input clock signal according to the control voltage, so as to output an output clock signal. The modulation profile of the output clock signal is a periodic function of time.

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patent: 7400696 (2008-07-01), Chen et al.
patent: 2004/0085108 (2004-05-01), Murata et al.
Jonghoon Kim et al., “Spread Spectrum Clock Generator With Delay Cell Array to Reduce Electromagnetic Interference,” IEEE Transactions on Electromagnetic Compatibility, Vol. 47, No. 4, Nov., 2005, pp. 908-920.

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