Invention Grant
US08686771B2 Digital phase-locked loop with wide capture range, low phase noise, and reduced spurs
失效
数字锁相环具有宽捕捉范围,低相位噪声和减少杂散
- Patent Title: Digital phase-locked loop with wide capture range, low phase noise, and reduced spurs
- Patent Title (中): 数字锁相环具有宽捕捉范围,低相位噪声和减少杂散
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Application No.: US13485413Application Date: 2012-05-31
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Publication No.: US08686771B2Publication Date: 2014-04-01
- Inventor: Emmanouil Frantzeskakis , Ioannis L. Syllaios , Georgios Sfikas , Henrik Jensen , Stephen Wu , Padmanava Sen
- Applicant: Emmanouil Frantzeskakis , Ioannis L. Syllaios , Georgios Sfikas , Henrik Jensen , Stephen Wu , Padmanava Sen
- Applicant Address: US CA Irvine
- Assignee: Broadcom Corporation
- Current Assignee: Broadcom Corporation
- Current Assignee Address: US CA Irvine
- Agency: Sterne, Kessler, Goldstein & Fox P.L.L.C.
- Priority: GR20120100265 20120518
- Main IPC: H03L7/06
- IPC: H03L7/06

Abstract:
The present disclosure is directed to digital phase-locked loops (DPLLs) and hybrid phase-locked loops (HPLL) for establishing and maintaining a phase relationship between a generated output signal and a reference input signal. The DPLLs use a counter based loop to initially bring the DPLL into lock. Thereafter, the DPLLs disable the counter based loop and switch to a loop with a multi-modulus divider (MMD). The DPLLs can implement a cancellation technique to reduce phase noise introduced by the MMD. The HPLLs further include a loop with a MMD. The HPLLs can implement a similar cancellation technique to reduce phase noise introduced by the MMD.
Public/Granted literature
- US20130113528A1 Digital Phase-Locked Loop with Wide Capture Range, Low Phase Noise, and Reduced Spurs Public/Granted day:2013-05-09
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