Invention Grant
- Patent Title: Clock and data recovery device
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Application No.: US18345872Application Date: 2023-06-30
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Publication No.: US12267079B2Publication Date: 2025-04-01
- Inventor: Young Jae Chang , Sung Ryong Lee , Jae Sam Shim
- Applicant: SILICON MITUS, INC. , Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd.
- Applicant Address: KR Seongnam-Si; CN Hangzhou
- Assignee: SILICON MITUS, INC.,Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd.
- Current Assignee: SILICON MITUS, INC.,Hangzhou Silicon-Magic Semiconductor Technology Co., Ltd.
- Current Assignee Address: KR Seongnam-Si; CN Hangzhou
- Agency: Osha Bergman Watanabe & Burton LLP
- Main IPC: H03L7/081
- IPC: H03L7/081 ; H03L7/089 ; H04L7/033

Abstract:
A clock and data recovery device includes an equalizer that compensates for channel loss of input data, a phase detector that compares a data output from the equalizer with a clock fed back and outputs an up signal and a down signal, a charge pump that operates according to the up signal and the down signal and outputs a control signal, a loop filter that removes high-frequency components included in the control signal, a voltage controlled oscillator that changes a frequency of the clock and outputs a clock with changed frequency, and a data phase adjuster that synchronizes the clock output from the voltage controlled oscillator and the data output from the equalizer by adjusting a phase of the data output from the equalizer by receiving the up signal and the down signal output from the phase detector.
Public/Granted literature
- US20240072811A1 CLOCK AND DATA RECOVERY DEVICE Public/Granted day:2024-02-29
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