Spread clock source for reducing electromagnetic interference ge

Details Spread clock source for reducing electromagnetic interference ge Spread clock source for reducing electromagnetic interference ge

1994-09-21

1995-06-20

Sikes, William L.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Unwanted signal suppression

327100, 327309, H03K 508, H03K 500, H03B 100

Patent

active

054263921

ABSTRACT:
In a digital circuit in which electromagnetic interference is generated at the fundamental and harmonic frequencies of the digital circuit clock source, a clock source for reducing the peak spectral content of said interference. The clock source includes a noise source for generating a broad band frequency noise signal and a filter circuit for receiving and bandpass filtering the noise signal and providing the filtered noise signal as the clock signal.

REFERENCES:
patent: 4034240 (1977-07-01), Foreman
patent: 4169249 (1979-09-01), Hoffman et al.
patent: 4916411 (1990-04-01), Lymer
patent: 5070254 (1991-12-01), Summers

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