Method and apparatus for creating a large delay in a pulse in a

Details Method and apparatus for creating a large delay in a pulse in a Method and apparatus for creating a large delay in a pulse in a

1994-10-05

1997-02-25

Callahan, Timothy P.

Miscellaneous active electrical nonlinear devices, circuits, and

Signal converting, shaping, or generating

Having specific delay in producing output waveform

327 8, 327 41, 327 49, 327174, 327 24, H03K 526, H03D 1300

Patent

active

056062761

ABSTRACT:
A delay element (10) generates a delay pulse (OUT) the length of which is not dependent on an available system clock. The delay element uses oscillators (12a, 12b, 12c) and edge detectors (16a, 16b, 16c) to generate a delay based on the beat frequency of the oscillators. The delay element is suitable for fabrication as part of a CMOS integrated circuit, and requires less layout area than alternative methods.

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Altera Data Book, 1993, Chapter 7, pp. 341-348.

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