A 20-Gb/s 4-tap time-domain DFE with pulse width modulation for a DQ-DQS matched parallel receiver

IF 0.7 4区工程技术 Q4 ENGINEERING, ELECTRICAL & ELECTRONIC

Electronics Letters Pub Date : 2024-07-12 DOI:10.1049/ell2.13279

Daehoon Na, Woo-Seok Choi, Seon-Kyoo Lee

引用次数: 0

Abstract

A 4-tap time-domain decision feedback equalizer (TD-DFE) is presented to implement a multi-tap DFE in a matched DQ (data)-DQS (strobe) tree architecture. Traditionally, matched architecture holds an advantage in terms of power noise immunity, but it suffers from low-speed performance due to the unavailability of decision feedback equalizer (DFE) applications. By adopting the proposed TD-DFE, both high-speed operation and power noise immunity can be achieved within the matched architecture. An 8-DQ parallel receiver with the proposed 4-tap TD-DFE, designed in 28 nm CMOS, achieves a data rate of 20 Gb/s with 0.6 UI eye-opening even with 215 mV power fluctuations.

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用于 DQ-DQS 匹配并行接收器的 20-Gb/s 4 抽头时域 DFE 与脉宽调制

本文介绍了一种 4 抽头时域决策反馈均衡器（TD-DFE），用于在匹配的 DQ（数据）-DQS（选通）树结构中实现多抽头 DFE。传统上，匹配架构在抗功率噪声方面具有优势，但由于决策反馈均衡器（DFE）应用的不可获得性，它的低速性能受到影响。通过采用所提出的 TD-DFE，可以在匹配架构内实现高速运行和抗功率噪声。采用所提出的 4 抽头 TD-DFE 的 8-DQ 并行接收器是在 28 nm CMOS 上设计的，即使在 215 mV 功率波动的情况下，也能实现 20 Gb/s 的数据传输速率和 0.6 UI 放大系数。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Electronics Letters 工程技术-工程：电子与电气

CiteScore

2.70

自引率

0.00%

发文量

268

审稿时长

3.6 months

期刊介绍： Electronics Letters is an internationally renowned peer-reviewed rapid-communication journal that publishes short original research papers every two weeks. Its broad and interdisciplinary scope covers the latest developments in all electronic engineering related fields including communication, biomedical, optical and device technologies. Electronics Letters also provides further insight into some of the latest developments through special features and interviews. Scope As a journal at the forefront of its field, Electronics Letters publishes papers covering all themes of electronic and electrical engineering. The major themes of the journal are listed below. Antennas and Propagation Biomedical and Bioinspired Technologies, Signal Processing and Applications Control Engineering Electromagnetism: Theory, Materials and Devices Electronic Circuits and Systems Image, Video and Vision Processing and Applications Information, Computing and Communications Instrumentation and Measurement Microwave Technology Optical Communications Photonics and Opto-Electronics Power Electronics, Energy and Sustainability Radar, Sonar and Navigation Semiconductor Technology Signal Processing MIMO