- Patent Title: Digitally calibrated programmable clock phase generation circuit
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Application No.: US17555840Application Date: 2021-12-20
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Publication No.: US11641206B2Publication Date: 2023-05-02
- Inventor: Robert W Kim
- Applicant: AyDeeKay LLC
- Applicant Address: US CA Aliso Viejo
- Assignee: AyDeeKay LLC
- Current Assignee: AyDeeKay LLC
- Current Assignee Address: US CA Aliso Viejo
- Agent Steven Stupp
- Main IPC: H03L7/081
- IPC: H03L7/081 ; H03L7/099

Abstract:
An integrated circuit that includes a generating circuit is described. During operation, the generating circuit may provide an edge clock having a target phase within a clock period of an input clock, where the generating circuit does not include a delay-locked loop (DLL). For example, the generating circuit may include a gated ring oscillator that provides a reference clock having a first fundamental frequency that is larger than a second fundamental frequency of the input clock. Note that the gated ring oscillator may be programmable to adjust the first fundamental frequency within a predefined range of values. Moreover, the generating circuit may include a control circuit that determines a reference count of a number of edges of the reference clock within a reference period of the reference clock.
Public/Granted literature
- US20220216877A1 Digitally Calibrated Programmable Clock Phase Generation Circuit Public/Granted day:2022-07-07
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