A 43 nW, 32 kHz, ±4.2 ppm Piecewise Linear Temperature-Compensated Crystal Oscillator With ΔΣ-Modulated Load Capacitance

Sujin Park,Ji-Hwan Seol,Li Xu,Seonghwan Cho,Dennis Sylvester,David Blaauw

IEEE Journal of Solid-State Circuits（2022）

引用 2|浏览16

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摘要

This article describes an ultralow-power (ULP) temperature-compensated crystal oscillator (TCXO) with a pulsed-injection XO driver for IoT applications. Temperature compensation is achieved by changing the load capacitance ( ${C}_{L}$ ) between two values using a delta-sigma modulator ( 更多

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关键词

Oscillators,Temperature sensors,Crystals,Table lookup,Voltage,Timing,Switches

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