Invention Grant
- Patent Title: Method and apparatus for fast phase locked loop (PLL) settling with reduced frequency overshoot
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Application No.: US15010571Application Date: 2016-01-29
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Publication No.: US09859903B2Publication Date: 2018-01-02
- Inventor: Greg Alyn Unruh , Pin-En Su , Fazil Ahmad
- Applicant: Avago Technologies General IP (Singapore) Pte. Ltd.
- Applicant Address: SG Singapore
- Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee: Avago Technologies General IP (Singapore) Pte. Ltd.
- Current Assignee Address: SG Singapore
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Main IPC: H03L7/06
- IPC: H03L7/06 ; H03L7/099 ; G04F10/00

Abstract:
Method and apparatus for fast phase locked loop (PLL) settling with reduced frequency overshoot are provided. During acquisition, a first phase offset signal configured to drive a phase error signal to zero is provided at a first circuit of the PLL. The first circuit may be a time-to-digital converter (TDC) of the PLL. A second phase offset signal configured to offset the first phase offset signal is provided at a second circuit of the PLL. The second circuit of the PLL may be a loop filter at the PLL.
Public/Granted literature
- US20170201260A1 METHOD AND APPARATUS FOR FAST PHASE LOCKED LOOP (PLL) SETTLING WITH REDUCED FREQUENCY OVERSHOOT Public/Granted day:2017-07-13
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