In this paper, a complete system of a frequency-modulated gyroscope with digital output for future low-power, high-stability, and wide full-scale applications is presented. The system includes the microelectromechanical transducer, two analog oscillators, two mixed-signal frequency to digital converters, and a fundamental mixed-signal block for the real-time extraction and digitization of the demodulation phase reference. With an overall consumption of 406 $\mu$A, the system has a 90 dB dynamic range on a 50 Hz bandwidth, with a $\text{5 }^{\circ }$/hr stability after 20-min observation interval, and a scale-factor drift coefficient of 20 ppm/K only.

中文翻译：

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完全集成、406 μA、5°/小时、全数字输出李萨如调频陀螺仪

在本文中，提出了一个带有数字输出的调频陀螺仪的完整系统，用于未来的低功耗、高稳定性和广泛的全尺寸应用。该系统包括微机电换能器、两个模拟振荡器、两个混合信号频率到数字转换器，以及一个用于实时提取和数字化解调相位参考的基本混合信号块。总消费406 $\mu$A、系统在 50 Hz 带宽上具有 90 dB 的动态范围，具有 $\text{5 }^{\circ }$20 分钟观察间隔后的 /hr 稳定性，并且比例因子漂移系数仅为 20 ppm/K。