Reference voltage generator for logic elements providing...

Details Reference voltage generator for logic elements providing... Reference voltage generator for logic elements providing...

2004-11-24

2009-10-27

Pascal, Robert (Department: 2817)

Oscillators

With frequency calibration or testing

C331S015000, C331S057000, C331S074000

Reexamination Certificate

active

07609119

ABSTRACT:
A reference voltage generator and a method for generating a reference voltage for a logic device using the reference voltage generator is provided. The voltage reference generator includes a ring oscillator having a plurality of logic gates and a phase/frequency detector. A first reference voltage is generated on the basis of a phase/frequency difference between the phase/frequency of a reference clock and the phase/frequency of the ring oscillator. A second reference voltage is generated on the basis of a voltage swing of the oscillator circuit. Both reference voltages can be applied to the plurality of logic gates of the ring oscillator such that a constant delay is created through each logic gate of the logic device.

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International Search Report mailed Dec. 9, 2003 for PCT/RU03/00241.

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