A 12.5-Gb/s On-Chip Oscilloscope to Measure Eye Diagrams and Jitter Histograms of High-Speed Signals
A 12.5-Gb/s On-Chip Oscilloscope to Measure Eye Diagrams and Jitter Histograms of High-Speed Signals
复制标题
用于测量高速信号的眼图和抖动直方图的 12.5 Gb/s 片上示波器
DOI：
10.1109/tvlsi.2013.2265895
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发表时间：
2014
影响因子：
2.8
通讯作者：
L. Belostotski
中科院分区：
文献类型：
--
作者：
Behzad Dehlaghi;S. Magierowski;L. Belostotski
本文介绍了一种 12.5 Gb/s 片上示波器 (OCO) 电路，用于测量高速数字信号的眼图和抖动直方图。所提出的电路采用新颖的架构来捕获单端和差分信号。此外，它能够测量输入信号的眼图张开度和抖动，而无需构建整个眼图，这使其成为眼图张开度监控电路的合适候选者。本研究采用异步采样技术和高效算法来减少 OCO 的面积及其处理时间。所提出的电路采用 65 nm CMOS 技术制造，当输入信号由 10 GHz 时钟信号和 12.5 Gb/s 伪随机二进制序列组成时，测量结果显示亚皮秒分辨率。 OCO电路功耗为1.9 mW，核心面积为40×60 μm。
This paper presents a 12.5-Gb/s on-chip oscilloscope (OCO) circuit to measure eye diagrams and jitter histograms of high-speed digital signals. The proposed circuit adopts a novel architecture to capture both single-ended and differential signals. In addition, it is capable of measuring the eye openings and jitter of the input signals without the need to construct the whole eye diagram which makes it a suitable candidate for eye-opening monitor circuits. An asynchronous sampling technique and an efficient algorithm are employed in this research to decrease the area of the OCO as well as its processing time. The proposed circuit is fabricated in a 65-nm CMOS technology and the measurement results show sub-picosecond resolution when the input signals consist of a 10-GHz clock signal and a 12.5-Gb/s pseudorandom binary sequence. The OCO circuit has a power consumption of 1.9 mW, and its core area is 40 × 60 μm.