A 14b 16GS/s Time-Interleaving Direct-RF Synthesis DAC with T-DEM Achieving -70dBc IM3 up to 7.8GHz in 7nm

📋 论文概要

本文提出了一款14位16GS/s时间交织直接射频合成DAC，采用时间域动态元素匹配（T-DEM）技术，在7nm工艺下实现了高达7.8GHz频率范围内-70dBc的IM3性能，解决了宽带多频段软件定义无线电收发机中高速高线性度DAC的设计难题。

💡 主要创新点

• 提出时间域动态元素匹配（T-DEM）技术，通过时间交织方式改善DAC的线性度，降低IM3失真。
• 实现14位16GS/s的高速直接射频合成架构，支持C波段信号直接数字化和采样。
• 在7nm先进工艺下集成，兼顾高采样率与低功耗，适用于无线基础设施无线电单元。

🏷 关键词

📄 原文摘要

Yu-Sian Lin1, Hung-Yi Huang1, HsinWei Chen1, Sheng-Hui Liao1, Kuan-Dar Chen1, Jon Strange2, Gabriele Manganaro3 MediaTek, HsinChu, Taiwan, 2MediaTek, Kent, United Kingdom, 3MediaTek, Woburn, MA *Equally Credited Authors (ECAs) 1 Recent wideband data converters [1-4], capable of direct digitization and sampling of Cband RF signals with moderate power consumption, provide an attractive architectural option for multi-band software-defined-radio RF transceivers used in wireless infrastructure radio units. In these applications, system integration is critically important and requires the data converters to be integrated together with the digital low-phy layer of the radio unit. This, in turn, determines the selection of the process technology. Power consumption is also very important since keeping the junction temperature down can be very challenging in integrated systems with limited heat dissipation inherent to small

👥 作者与机构

Wei-Hsin Tseng*1, Willy Lin*1, Chung-Wei Hsu1, Chang-Yang Huang1,