低功耗实时时钟，在大电源电压范围内具有高精度

NORCHIP 2012 Pub Date : 2012-11-01 DOI:10.1109/NORCHP.2012.6403110

W. Gut, G. Hilber, D. Gruber, M. Kaufmann, Andreas Rauchenecker, T. Ostermann

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引用次数: 1

摘要

低功耗实时时钟(RTC)电路是各种现代应用中的重要组成部分。除了低功耗外，振荡电路和整个RTC的频率稳定性也很重要。我们提出了一个RTC电路，显示振荡频率从平均值的-95ppm到3.27ppm之间的偏差。测量是在一个制造的分离批次上进行的(因此包括局部和全局角落变化)，并且在1.6V至2.5V的电源电压范围内进行。

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Low power Real Time Clock with high accuracy over large supply voltage range

Low-power Real Time Clock (RTC) circuits are important parts in a variety of modern applications. In addition to the low power-consumption, the frequency stability of the oscillation circuit and the whole RTC is important. We propose a RTC circuit that shows a deviation between -95ppm and 3.27ppm of the oscillation frequency from the mean value. The Measurements have been carried out over a manufactured split lot (therefore including local and global corner variations) and over a supply voltage range from 1.6V up to 2.5V.

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NORCHIP 2012

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