Invention Grant
- Patent Title: All-digital phase-locked loop for adaptively controlling closed-loop bandwidth, method of operating the same, and devices including the same
- Patent Title (中): 用于自适应控制闭环带宽的全数字锁相环，操作方法和包括相同的设备
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Application No.: US14204251Application Date: 2014-03-11
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Publication No.: US09077351B2Publication Date: 2015-07-07
- Inventor: Jae Jin Park , Tae Kwang Jang , Nan Xing , Jen Lung Liu
- Applicant: Jae Jin Park , Tae Kwang Jang , Nan Xing , Jen Lung Liu
- Applicant Address: KR Suwon-si
- Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee: SAMSUNG ELECTRONICS CO., LTD.
- Current Assignee Address: KR Suwon-si
- Agency: Sughrue Mion, PLLC
- Priority: KR10-2013-0026740 20130313; KR10-2013-0051824 20130508
- Main IPC: H03L7/06
- IPC: H03L7/06 ; H03L7/085
Abstract:
A method of operating an all-digital phase-locked loop (ADPLL) includes detecting a phase change in a feedback signal of the ADPLL using a search window and controlling a closed-loop bandwidth of the ADPLL based on a detection result. The closed-loop bandwidth when the phase change is detected outside the search window is greater than the closed-loop bandwidth when the phase change is detected within the search window.
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