Subthreshold passive RFID tag's baseband processor core design with custom modules and cells

Weiwei Shi, Zhao Guangdong, O. Choy
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引用次数: 1

Abstract

Subthreshold ultra-low-power passive RFID tag's baseband processor core design with custom logic cells is presented in this paper, based on EPC C1G2 protocol. To deal with the critical timing and wide-range-PVT variation problems of the processor at very low power supply, and for the consideration of limited availability of RF power, power-aware ideas are applied to the processor, including data link portions. Importantly, a novel custom ratioed logic style is adopted in key modules to fundamentally solve the speed problem at ultra-low-voltage. The proposed baseband processor was fabricated in 90 nm CMOS as well as the regular design with the same function. In measurement the proposed design indicates good robustness and much more competent for subthreshold operation. It can operate at minimum 0.28 V supply with power consumption of 129 nW.
亚阈值无源RFID标签的基带处理器核心设计与定制模块和单元
介绍了基于EPC C1G2协议的亚阈值超低功耗无源RFID标签的基带处理器核心设计。为了解决处理器在极低功率下的关键时序和大范围pvt变化问题,并考虑到射频功率的有限可用性,将功率感知思想应用于处理器,包括数据链路部分。重要的是,关键模块采用了新颖的自定义比例逻辑,从根本上解决了超低电压下的速度问题。所提出的基带处理器在90 nm CMOS上制作,并具有相同功能的常规设计。在测量中,所提出的设计具有良好的鲁棒性,更适合阈下操作。它可以在0.28 V的电源下工作,功耗为129 nW。
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