• Patent Title: Digitally calibrated programmable clock phase generation circuit
  • Application No.: US17555840
    Application Date: 2021-12-20
  • Publication No.: US11641206B2
    Publication 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
Digitally calibrated programmable clock phase generation circuit
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
Information query
Patent Agency Ranking
0/0