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公开(公告)号：US10536258B2
公开(公告)日：2020-01-14
申请号：US15996444
申请日：2018-06-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Hunsoo Choo , Hamid Safiri , Nikolaus Klemmer , Jaimin Mehta , Srinadh Madhavapeddi , Charles Kasimer Sestok , Vijayavardhan Baireddy
Abstract: Multi-domain clock generation with skew compensation is based on free-running counters in each of the multiple clock domains. Multi-domain clock generation circuitry provides at least first and second domain clocks generated with randomization, each based on an input clock with an input clock frequency, the domain clocks having a relative clock skew that is varied over time in magnitude and direction. A first circuit in a first clock domain, configured for operation with the first domain clock, includes a first free-running counter with a pre-defined first selected roll-over count, to generate a first free-running count (N1(k)) based on the first domain clock. A second circuit in a second clock domain is configured for operation with the second domain clock, and includes a second free-running counter with a pre-defined second selected roll-over count, to generate a second free-running count (N2(k)) based on the second domain clock.
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公开(公告)号：US20190372747A1
公开(公告)日：2019-12-05
申请号：US15996444
申请日：2018-06-02
Applicant: TEXAS INSTRUMENTS INCORPORATED
Inventor： Hunsoo Choo , Hamid Safiri , Nikolaus Klemmer , Jaimin Mehta , Srinadh Madhavapeddi , Charles Kasimer Sestok , Vijayavardhan Baireddy
Abstract: Multi-domain clock generation with skew compensation is based on free-running counters in each of the multiple clock domains. Multi-domain clock generation circuitry provides at least first and second domain clocks generated with randomization, each based on an input clock with an input clock frequency, the domain clocks having a relative clock skew that is varied over time in magnitude and direction. A first circuit in a first clock domain, configured for operation with the first domain clock, includes a first free-running counter with a pre-defined first selected roll-over count, to generate a first free-running count (N1(k)) based on the first domain clock. A second circuit in a second clock domain is configured for operation with the second domain clock, and includes a second free-running counter with a pre-defined second selected roll-over count, to generate a second free-running count (N2(k)) based on the second domain clock.
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