A 0.5-to-400MHz Programmable BAW Oscillator with Fractional Output Divider Achieving 4ppm Frequency Stability over Temperature and <95fs Jitter

📋 论文概要

本文提出了一种基于BAW技术的可编程振荡器，覆盖0.5-400MHz频率范围，通过分数输出分频器实现4ppm的频率稳定性。解决了宽频率范围内高精度温度稳定性的问题。

💡 主要创新点

• 采用BAW谐振器与分数输出分频器相结合，实现宽频率范围内的可编程输出。
• 通过温度补偿技术，在0.5-400MHz范围内达到4ppm的频率稳定性。

🏷 关键词

📄 原文摘要

Peeyoosh Mirajkar1, Raghavendra Reddy1, Harish Ramesh1, Bichoy Bahr2, Jagdish Chand1, Uday Meda1, Baher Haroun2, Shankar Karantha1, Ernest Yen3, Keegan Martin2, Daniel Gan4, Amin Sijelmassi2, Sankaran Aniruddhan5 Texas Instruments, Bangalore, India, 2Texas Instruments, Dallas, TX, Texas Instruments, Santa Clara, CA, 4Texas Instruments, Melaka, Malaysia, 5 Indian Institute of Technology Madras, Chennai, India 1 3 Bulk-Acoustic-Wave (BAW)-technology-based oscillators have recently been introduced that combine a BAW resonator die with a CMOS circuit die containing oscillator and temperature compensation circuits [1]. In this work, we leverage the BAW technology to create a user programmable oscillator with attractive characteristics such as longterm reliability, miniaturization and low cost. Unlike low-frequency crystal/MEMS-based programmable resonators that require a fractional PLL to generate higher output

👥 作者与机构

Subhashish Mukherjee1, Yogesh Darwhekar1, Jayawardan Janardhanan1,