EFFICIENT POWER SUPPLY NOISE MEASUREMENT BASED ON TIMING UNCERTAINTY
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United States of America Patent
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Jun 25, 2015
app pub date -
Aug 8, 2013
filing date -
Aug 8, 2012
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Abstract
A power supply noise measurement device for inclusion with an integrated circuit, the integrated circuit having a functional block, the noise measurement device comprising: a signal generator configured to provide a clock signal to the functional block, an antenna comprising a transistor, and being located proximate to the functional block, the antenna being configured to receive the clock signal from the signal generator, and a jitter estimator configured to provide a measure of the relative jitter between a signal output from the antenna and a reference clock signal, wherein the transistor of the antenna receives electrical power from the same power source that delivers power to the functional block.
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