Invention Grant
- Patent Title: Sample-and-hold-based retimer supporting link training
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Application No.: US17083008Application Date: 2020-10-28
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Publication No.: US11743080B2Publication Date: 2023-08-29
- Inventor: Abishek Manian , Amit Rane , Ashwin Kottilvalappil Vijayan
- Applicant: TEXAS INSTRUMENTS INCORPORATED
- Applicant Address: US TX Dallas
- Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee: TEXAS INSTRUMENTS INCORPORATED
- Current Assignee Address: US TX Dallas
- Agent John R. Pessetto; Frank D. Cimino
- Main IPC: H04L27/01
- IPC: H04L27/01 ; H04L25/03

Abstract:
A linear retimer includes an equalizer, a clock recovery circuit, a sample and hold (S/H) circuit, and a linear driver. The equalizer receives an input signal and outputs an equalized signal. The clock recovery circuit receives the equalized signal and outputs a clock signal. The S/H circuit receives the equalized signal and the clock signal and outputs a retimed signal. The linear driver receives the retimed signal and outputs a recovered signal. The S/H circuit is configured to preserve a voltage of the equalized signal in the retimed signal. In some examples, the S/H circuit is part of a linear three-tap feedforward equalizer, and the linear driver receives an output of the feedforward equalizer. The linear retimer can be placed between a transmitter and a channel or after the channel.
Public/Granted literature
- US20210409248A1 SAMPLE-AND-HOLD-BASED RETIMER SUPPORTING LINK TRAINING Public/Granted day:2021-12-30
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