Invention Grant
US08664985B2 Phase frequency detector and charge pump for phase lock loop fast-locking
有权
相位频率检测器和电荷泵用于锁相环快速锁定
- Patent Title: Phase frequency detector and charge pump for phase lock loop fast-locking
- Patent Title (中): 相位频率检测器和电荷泵用于锁相环快速锁定
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Application No.: US13548079Application Date: 2012-07-12
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Publication No.: US08664985B2Publication Date: 2014-03-04
- Inventor: Yu-Li Hsueh , Jing-Hong Conan Zhan
- Applicant: Yu-Li Hsueh , Jing-Hong Conan Zhan
- Applicant Address: TW Hsin-Chu
- Assignee: Mediatek Inc.
- Current Assignee: Mediatek Inc.
- Current Assignee Address: TW Hsin-Chu
- Agency: Sawyer Law Group, P.C.
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
The present invention provides for a solution to reduce locking time with satisfactory performance without the need for significant footprint area for the phase lock loop (PLL) circuits by boosting phase frequency detector (PFD) and charge pump (CP) gains through various circuitry configurations that employ one or more flip-flops, delay elements and advanced circuitry techniques.
Public/Granted literature
- US20130200922A1 PHASE FREQUENCY DETECTOR AND CHARGE PUMP FOR PHASE LOCK LOOP FAST-LOCKING Public/Granted day:2013-08-08
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