Method and device for high-speed sub-picosecond linear clock phase detection
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United States of America Patent
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May 15, 2018
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Jul 25, 2017
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Jul 25, 2017
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Abstract
A clock phase detector circuit device and method. The device can include a first and second clock inputs connected to two pairs of transistors, each transistor having a first, second, and third terminal. The first pair includes a p-type transistor and n-type transistor configured such that the third terminals of each transistor are connected to form a first output node. Similarly, the second pair includes a p-type transistor and n-type transistor, the second p-type transistor and n-type transistor configured such that the third terminals of each transistor are connected to form a second output node. The first clock input is connected to the first terminals of the first p-type transistor and the second n-type transistor, while the second clock input is connected to the first terminals of the second p-type transistor and the first n-type transistor. As configured, the voltage outputs represent the phase difference between the clock inputs.
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