- 专利标题: Phase-locked loop with phase information multiplication
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申请号: US16674569申请日: 2019-11-05
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公开(公告)号: US11804846B2公开(公告)日: 2023-10-31
- 发明人: George Chung Fai Ng , Marcus Van Ierssel
- 申请人: Cadence Design Systems, Inc.
- 申请人地址: US CA San Jose
- 专利权人: Cadence Design Systems, Inc.
- 当前专利权人: Cadence Design Systems, Inc.
- 当前专利权人地址: US CA San Jose
- 代理机构: Holland & Knight LLP
- 代理商 Mark Whittenberger, Esq
- 主分类号: H03L7/089
- IPC分类号: H03L7/089 ; H03L7/099
摘要:
A phase-locked loop (PLL) includes a phase-frequency detector that compares a reference signal to a feedback signal. The difference in phase between the reference signal and the feedback signal is encoded as digital pulses on one or more outputs of the phase-frequency detector. The digital output pulses from the phase-frequency detector are duplicated and delayed multiple times in a non-overlapping manner before being input to the loop filter or voltage controlled oscillator (VCO) of the PLL.
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