Reference current generating circuitry, A/D converter, and wireless communication device
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United States of America Patent
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Jan 23, 2018
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N/A
app pub date -
Dec 22, 2016
filing date -
Feb 19, 2016
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Abstract
A reference current generating circuit has a variable current supply to output a reference current, delay circuitry to generate a reference clock by delaying a clock by a reference delay amount and a delay clock by delaying the clock depending on a current value of the reference current, a phase comparator to compare a phase of the reference clock with a phase of the delay clock to output a comparison result, and control circuitry to control the current value of the reference current based on the compared result.
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