Fast & Energy Efficient Start-Up of Crystal Oscillators by Self-Timed Energy Injection
Fast & Energy Efficient Start-Up of Crystal Oscillators by Self-Timed Energy Injection
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快速地
DOI：
10.1109/jssc.2019.2933143
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发表时间：
2019
影响因子：
5.4
通讯作者：
B. Nauta
中科院分区：
文献类型：
--
作者：
J. Lechevallier;R. V. D. van der Zee;B. Nauta
晶体振荡器的启动需要很长时间，更重要的是需要大量的能量。本文介绍了一种自定时能量注入技术，可以快速启动晶体振荡器，从而实现非常低的能耗。这是无需高耗电的振荡器来提供注入信号即可实现的。讨论了设计注意事项，并将使用所提出技术的原型晶体振荡器集成到 22 nm 全耗尽绝缘体上硅 (FD-SOI) 技术中。连接到 50 MHz 晶体后，制造的 IC 的启动时间为 6 $\mu \text{s}$ ，而能耗仅为 3.7 nJ。
Crystal oscillators take a long time and, more importantly, a significant amount of energy to start-up. This article presents a self-timed energy injection technique to quickly start-up a crystal oscillator, for very low energy consumption. This is achieved without a power-hungry oscillator to provide the injection signal. The design considerations are discussed, and a prototype crystal oscillator using the proposed technique is integrated into a 22-nm fully depleted silicon-on-insulator (FD-SOI) technology. Connected to a 50-MHz crystal, the manufactured IC achieves a start-up time of 6 $\mu \text{s}$ , for an energy consumption of just 3.7 nJ.