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A 475-nW Area-Efficient Programmable Analog Feature Extraction Filterbank for Audio Classification

A 475-nW Area-Efficient Programmable Analog Feature Extraction Filterbank for Audio Classification 150 150
Author(s): Patrice Abbie D. Legaspi, Shubham Yadav, Mark S. Oude Alink, Bram Nauta

Abstract:

Audio classification in edge devices has many applications and can be implemented at varying levels of complexity, typically consisting of a feature extractor followed by a classifier. Such devices are often always-on, constantly listening to their surroundings, and have a small form factor; therefore, they require low-power operation and high …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3655426
Publisher: IEEE

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A Low-Power Blocker-Tolerant Wideband Receiver With Bias-Tunable Mixer and Effective Switch Resistance Compensation

A Low-Power Blocker-Tolerant Wideband Receiver With Bias-Tunable Mixer and Effective Switch Resistance Compensation 150 150
Author(s): Rundi Wu, Yetong Wang, Ran Hong, Zongle Ma, Kenan Xie, Fanyi Meng, Kaixue Ma, Keping Wang

Abstract:

This article presents a mixer-first blocker-tolerant receiver (RX) with effective switch resistance ( ${R} _{\text {SW}}$ ) compensation and high-Q selectivity. By analyzing the impact of non-ideal 1/N LO duty cycle and effective ${R} _{\text {SW}}$ on mixer-first RX, an effective ${R} _{\text {SW}}$ compensation technique is proposed to mitigate noise figure (…

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1554 – 1569
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3529681
Publisher: IEEE

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