Circuit stability

Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope

Sub-μA Always-on Drive Loop for 3-Axis MEMS Gyroscope 150 150

Abstract:

The always-on drive loop with low power is a key enabler for intelligent inertial measurement unit (IMU). One of the key design challenges of the always-on drive loop is the trade-off between the always-on power consumption and the wake-up time. To meet this challenge, the burst-mode always-on drive loop composed …

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A 0.4-V 32-kHz Pulse-Injection Temperature-Compensated Crystal Oscillator With Sub-Cycle CL Modulation and DLL-Reused Temperature Sensor

A 0.4-V 32-kHz Pulse-Injection Temperature-Compensated Crystal Oscillator With Sub-Cycle CL Modulation and DLL-Reused Temperature Sensor 150 150

Abstract:

This article presents a 0.4-V 32 kHz pulse-injection (PI) temperature-compensated crystal oscillator (TCXO) that incorporates subcycle capacitive load ( $C_{\text {L}}$ ) modulation for frequency compensation. The proposed TCXO compensates for the crystal’s frequency deviation ( $\Delta f$ ) by dynamically adjusting the enabling duration of the additional $C_{\text {L}}$ within each …

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