Invention Grant
- Patent Title: Clock and data recovery devices with fractional-N PLL
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Application No.: US17013307Application Date: 2020-09-04
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Publication No.: US11218156B2Publication Date: 2022-01-04
- Inventor: Mrunmay Talegaonkar , Jorge Pernillo , Junyi Sun , Praveen Prabha , Chang-Feng Loi , Yu Liao , Jamal Riani , Belal Helal , Karthik Gopalakrishnan , Aaron Buchwald
- Applicant: Marvell Asia Pte Ltd.
- Applicant Address: SG Singapore
- Assignee: Marvell Asia Pte Ltd.
- Current Assignee: Marvell Asia Pte Ltd.
- Current Assignee Address: SG Singapore
- Main IPC: H03L7/197
- IPC: H03L7/197 ; H04L7/033 ; H03L7/087 ; H03L7/08 ; H03L7/099

Abstract:
The present invention relates to data communication and electrical circuits. More specifically, embodiments of the present invention provide a clock and data recovery (CDR) architecture implementation for high data rate wireline communication links. In an embodiment, a CDR device includes a phase detector, a loop filter, and a fractional-N PLL. The fractional-N PLL generates output clock signal based on output of the loop filter. There are other embodiments as well.
Information query
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