⚡ 本页包含 AI 生成的分析内容，仅供参考
该论文提出了一种低面积的开关电阻环路滤波器技术，用于分数N频率合成器，并应用于基于MEMS谐振器的可编程振荡器，解决了传统环路滤波器占用面积大的问题。
Shouvik Mukherjee1, Cathy Lee1, Vadim Tsinker4, Sathi Perumal5, Benjamin Soto6, Niveditha Arumugam1, Bruno W Garlepp1 1 SiTime, Sunnyvale, CA University of California, Los Angeles, CA 3 Global Foundries, Sunnyvale, CA 4 Invensense, Sunnyvale, CA 5 Consultant, Sunnyvale, CA 6 Consultant, Mountain View, CA 2 MEMS resonators have recently emerged as an alternative structure to crystal resonators in providing frequency references which achieve better than 50 ppm accuracy over the industrial temperature range. As illustrated in Fig. 13.1.1, a programmable oscillator utilizing a MEMS resonator is achieved by wire bonding a MEMS resonator die to a CMOS die that contains an oscillator sustaining circuit, temperature sensor, fractional-N synthesizer, and various digital blocks. The output of the sustaining circuit provides a 5 MHz reference frequency to the fractional-N synthesizer, which outputs a higher frequency that can be digitally
Michael H Perrott1, Sudhakar Pamarti2, Eric Hoffman3, Fred S Lee1,