A reconfigurable calibration-free digital-to-time converter based on a high-speed transceiver

作     者：Kong, Dexuan Fu, Zaiming Deng, Yujie Wang, Ruiqi 

作者机构：University of Electronic Science and Technology of China School of Automation Engineering Chengdu611731 China 

出 版 物：《arXiv》 (arXiv)

年 卷 期：2024年

核心收录：

主　　题：Radio transceivers 

摘      要：This paper proposes a high-speed transceiver-based method for implementing a digital-to-time converter (DTC). A real-time decoding technique is introduced to inject time information into high-speed pattern data. The stability of the high-speed clock ensures the high precision of the synthesized timing signal without the need for calibration. The reconfigurability of the clock resources provides the DTC with variable resolution and enhanced flexibility for various applications. Based on this approach, a multifunctional DTC is designed to offer both timing sequence and random timing signal functionalities, catering to a wide range of application scenarios. The timing sequence function generates a continuously variable timing signal stream, while the random timing signal function produces random signals with uniformly distributed time intervals. Experimental results, using a Xilinx Kintex-7 FPGA, validate the effectiveness of the proposed methodology. The system achieves a resolution of 100 ps, a dynamic range from 1 ns to 40 µs, a DNL of -0.02/0.02 LSB, an INL of -0.04/0.03 LSB across the entire range. This approach can be readily adapted to various high-precision timing signal applications. Copyright © 2024, The Authors. All rights reserved.