Invention Grant
- Patent Title: Jitter noise detector
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Application No.: US17972475Application Date: 2022-10-24
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Publication No.: US11808798B2Publication Date: 2023-11-07
- Inventor: Tien-Chien Huang
- Applicant: Taiwan Semiconductor Manufacturing Co., Ltd.
- Applicant Address: TW Hsin-Chu
- Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
- Current Assignee Address: TW Hsin-Chu
- Agency: Duane Morris LLP
- The original application number of the division: US16952744 2020.11.19
- Main IPC: G01R29/26
- IPC: G01R29/26 ; H03L7/08 ; H03L7/07 ; H03K19/0185 ; G01R31/317 ; G01R29/027

Abstract:
A noise detection circuit includes a first transistor configured to receive a delayed version of a clock signal; a second transistor configured to receive a delayed version of a reference clock signal; and a latch circuit, coupled to the first transistor at a first node and coupled to the second transistor at a second node, and configured to latch logic states of voltage levels at the first and second nodes, respectively, based on whether a timing difference between transition edges of the clock signal and the reference clock signal exceeds a pre-defined timing offset threshold.
Public/Granted literature
- US20230040034A1 NOVEL JITTER NOISE DETECTOR Public/Granted day:2023-02-09
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