ultralow-power (ULP)

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A Multiband Ultralow-Power Transceiver With Two-Step Wake-Up Reception

A Multiband Ultralow-Power Transceiver With Two-Step Wake-Up Reception 150 150
Author(s): Thinh Tran-Dinh, Hafiz Usman Mahmood, Jinglong Xu, Keun-Mok Kim, Kyung-Sik Choi, Jaeheon Lee, Jinho Ko, Sang-Gug Lee, Jusung Kim

Abstract:

This letter presents a multiband fully integrated ultralow-power (ULP) transceiver with a two-step wake-up receiver (WuRX) and switched-capacitor (SC)-based high-efficiency transmitter. Operating from 200 MHz to 1 GHz, the transceiver covers most IoT applications on a single chip. By employing a novel two-step wake-up scheme with a rotating correlator, the proposed …

Published in: IEEE Solid-State Circuits Letters
Page(s): 133 – 136
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3681917
Publisher: IEEE

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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
Author(s): Haihua Li, Pui-In Mak, Rui P. Martins, Ka-Meng Lei

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 …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3620824
Publisher: IEEE

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