- 专利标题: ALL-DIGITAL PHASE LOCKED LOOP AND OPERATION METHOD THEREOF
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申请号: EP20153770.1申请日: 2020-01-27
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公开(公告)号: EP3855625A1公开(公告)日: 2021-07-28
- 发明人: van den Heuvel, Johan , Bechthum, Elbert
- 申请人: Stichting IMEC Nederland
- 申请人地址: NL 5656 AE Eindhoven High Tech Campus 31
- 代理机构: Körfer, Thomas
- 主分类号: H03L7/093
- IPC分类号: H03L7/093 ; H03L7/099 ; H03L7/10 ; H03L7/107
摘要:
An all-digital phase locked loop (ADPLL) (10) is provided. The ADPLL (10) comprises a pattern generator (11) adapted to generate a frequency control word (FCW) (14) based on a predefined setting (12) and a system clock (13). In addition, the ADPLL (10) comprises a phase accumulator (15) adapted to translate the FCW (14) into a phase trajectory (16). The ADPLL (10) further comprises a phase comparator (17) adapted to generate a phase error signal (18) representing a difference between the phase trajectory (16) and the phase of an output oscillation frequency (25). Moreover, the ADPLL (10) comprises a control means (20) adapted to control a phase of the output oscillation frequency (25) with respect to the phase trajectory (16).
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