Programmable delay line compensated for process, voltage,...

Details Programmable delay line compensated for process, voltage,... Programmable delay line compensated for process, voltage,...

2010-03-03

2011-11-29

Ismail, Shawki (Department: 2819)

Electronic digital logic circuitry

Multifunctional or programmable

C326S041000, C326S047000, C326S101000

Reexamination Certificate

active

08067959

ABSTRACT:
A delay line compensated for process, voltage, and temperature variations, includes a delay locked loop (DLL) configured to delay a digital signal by the clock period of the digital signal, the DLL including a DLL delay line arranged as a plurality of cascaded sub-delay lines each sub-delay line providing one of a plurality of delay quanta in response to a digital control signal. A fractionating circuit is configured to generate a digital delay line control signal that is a fraction of the digital control signal. A digital delay line is arranged as a plurality of cascaded sub-delay lines each sub-delay line providing one of a plurality of delay quanta in response to the digital delay line control signal.

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