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公开(公告)号：US09954539B2
公开(公告)日：2018-04-24
申请号：US15206634
申请日：2016-07-11
申请人： Xilinx, Inc.
发明人： Jinyung Namkoong , Mayank Raj , Parag Upadhyaya , Vamshi Manthena , Catherine Hearne , Marc Erett
CPC分类号： H03L7/0891 , H03L7/0805 , H03L7/0995 , H03L7/24 , H03M9/00
摘要： A method, non-transitory computer readable medium, and circuit for clock phase generation are disclosed. The circuit includes an injection locked oscillator, a loop controller, and a phase interpolator. The injection locked oscillator includes an input for receiving an injected clock signal and an output for forwarding a set of fixed clock phases. The loop controller includes an input for receiving a phase separation error of the fixed clock phases and an output for forwarding a supply voltage derived from the phase separation error. The supply voltage matches the free running frequency of the injection locked oscillator to a frequency of the injected clock signal. The phase interpolator includes an input for receiving the set of fixed clock phases directly from the injection locked oscillator, an input for receiving the supply voltage from the loop controller, and an output for forwarding an arbitrary clock phase.
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公开(公告)号：US20180013435A1
公开(公告)日：2018-01-11
申请号：US15206634
申请日：2016-07-11
申请人： Xilinx, Inc.
发明人： Jinyung Namkoong , Mayank Raj , Parag Upadhyaya , Vamshi Manthena , Catherine Hearne , Marc Erett
CPC分类号： H03L7/0891 , H03L7/0805 , H03L7/0995 , H03L7/24 , H03M9/00
摘要： A method, non-transitory computer readable medium, and circuit for clock phase generation are disclosed. The circuit includes an injection locked oscillator, a loop controller, and a phase interpolator. The injection locked oscillator includes an input for receiving an injected clock signal and an output for forwarding a set of fixed clock phases. The loop controller includes an input for receiving a phase separation error of the fixed clock phases and an output for forwarding a supply voltage derived from the phase separation error. The supply voltage matches the free running frequency of the injection locked oscillator to a frequency of the injected clock signal. The phase interpolator includes an input for receiving the set of fixed clock phases directly from the injection locked oscillator, an input for receiving the supply voltage from the loop controller, and an output for forwarding an arbitrary clock phase.
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