Frequency

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A 64-Gb/s/pin 0.25-pJ/b Single-Ended Short-Reach PAM4 Transceiver in 28-nm CMOS

A 64-Gb/s/pin 0.25-pJ/b Single-Ended Short-Reach PAM4 Transceiver in 28-nm CMOS 150 150
Author(s): Kshitiz Tyagi, Kunbo Ma, Joung Won Park, Behzad Razavi

Abstract:

We present a transceiver architecture for single-ended PAM4 signaling, introducing an inverter-based active-inductor terminated front-end that obviates the need for further equalizer stages, substantially reducing power and area. Realized in 28-nm CMOS technology, the 4-lane link operates at 64 Gb/s/pin with a bit error rate less than 10-12 while …

Published in: IEEE Solid-State Circuits Letters
Page(s): 1 – 1
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3721808
Publisher: IEEE

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A Calibration-Free Frequency-Scalable ΔΣ ADC Incorporating PVT-Robust Dynamic Integration

A Calibration-Free Frequency-Scalable ΔΣ ADC Incorporating PVT-Robust Dynamic Integration 150 150
Author(s): Tohru Kaneko, Hideaki Ishida, Yuzuru Yamaki, Satoshi Takehara, Un-Ku Moon

Abstract:

This article summarizes a calibration-free, frequency-scalable $Delta Sigma $ analog-to-digital converter (ADC) which employs dynamic open-loop integrators for low-power sensing systems. The integrators use a capacitive degeneration scheme to obtain an integration factor determined by a capacitor ratio. To enhance process-voltage-temperature (PVT) robustness, bottom-plate level shift (BPLS) and a timer are …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3719645
Publisher: IEEE

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A 300-μW BLE-Compliant Packet-Based Data-Agnostic Clock-Harvesting RX Achieving −85/−70 dBm Sensitivity for ±40/±15 ppm Accuracy

A 300-μW BLE-Compliant Packet-Based Data-Agnostic Clock-Harvesting RX Achieving −85/−70 dBm Sensitivity for ±40/±15 ppm Accuracy 150 150
Author(s): Maryam Dodangeh, Mark S. Oude Alink, Jan Prummel, Bram Nauta

Abstract:

An ultralow-power Bluetooth low energy (BLE)-compliant crystal-less clock-harvesting receiver is presented that uses the BLE advertising packets (APs) to calibrate an on-chip frequency reference with ±400 ppm initial frequency offset. The proposed front-end, fabricated in 22 nm FDSOI, is capable of pushing the frequency accuracy of the reference further to below ±40/±15 …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3718973
Publisher: IEEE

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A 58.9–73.7-GHz Quadrature Dual-Core Class-F₃,₅ Oscillator With Tail-Assisted Implicit Quintupling

A 58.9–73.7-GHz Quadrature Dual-Core Class-F₃,₅ Oscillator With Tail-Assisted Implicit Quintupling 150 150
Author(s): Yevhenii Mormul, Patchara Sawakewang, Sayan Kumar, Chawin Khongprasongsiri, Teerachot Siriburanon, Robert Bogdan Staszewski

Abstract:

We introduce a new class-F3,5 oscillator topology that enables quadrature operation by duplicating a conventional class-F3 oscillator core and electromagnetically coupling the two cores through a pair of additional coils feeding source terminals of the $g_{m}$ transistors. The coupling network enhances the fifth-harmonic component, enabling efficient extraction and quadrature …

Published in: IEEE Solid-State Circuits Letters
Page(s): 198 – 201
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3699799
Publisher: IEEE

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Raisu: A Radiation-Tolerant Neuromorphic Imager With In-Pixel Self-Healing and Unified Spiking Processing for Spaceborne Vision

Raisu: A Radiation-Tolerant Neuromorphic Imager With In-Pixel Self-Healing and Unified Spiking Processing for Spaceborne Vision 150 150
Author(s): Quan Cheng, Qiufeng Li, Zhengke Yang, Zhen Kong, Gaoqiang Niu, Yuan Liang, Jiamin Li, Jeong Hoan Park, Wang Liao, Hiromitsu Awano, Takashi Sato, Longyang Lin, Masanori Hashimoto

Abstract:

Spaceborne imaging systems operate under severe radiation and energy constraints, where single-event effects (SEEs), total ionizing dose (TID), and displacement damage dose (DDD) critically degrade reliability and performance. This work presents a radiation-tolerant neuromorphic imager prototype featuring a fully spike-based neuromorphic vision architecture with in-pixel self-healing capability and an integrated …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 14
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3715724
Publisher: IEEE

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A Low-Power 10Mbps Squaring-First UWB Receiver Using Frequency Hopping and Two-Tone Modulation

A Low-Power 10Mbps Squaring-First UWB Receiver Using Frequency Hopping and Two-Tone Modulation 150 150
Author(s): Lexie Drackley, Aman Gupta, David D. Wentzloff

Abstract:

This paper presents a low-power 10Mbps squaring-first ultra-wideband (UWB) receiver using frequency hopping code-division multiple-access (FH-CDMA) and two-tone OOK modulation for wireless personal area networks (WPAN). The two-tone receiver architecture preserves IF filtering, improves resilience to narrowband interference, and saves power by eliminating the RF local oscillator. FH is applied …

Published in: IEEE Solid-State Circuits Letters
Page(s): 1 – 1
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2026.3716852
Publisher: IEEE

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P-Dits for the Frequency Assignment Problem With Transmitter Deactivation in Dense Environments

P-Dits for the Frequency Assignment Problem With Transmitter Deactivation in Dense Environments 150 150
Author(s): Christian Duffee, Jordan Athas, Igor Kadota, Randall Berry, Pedram Khalili Amiri

Abstract:

The frequency assignment problem is a nondeterministic polynomial-time hard (NP-hard) optimization problem concerning the assignment of frequency channels to wireless transmitters. Typically, the aim is to minimize interference between transmitters while maintaining a high level of service. In this work, the use of probabilistic d-dimensional bits, or p-dits, for this …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 78 – 85
Year of Publication: 2026
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2026.3690563
Publisher: IEEE

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A Coherent Polar Phase-Tracking Receiver With High ACR and Relaxed I/Q Generation

A Coherent Polar Phase-Tracking Receiver With High ACR and Relaxed I/Q Generation 150 150
Author(s): Xuansheng Ji, Liqun Feng, Qianxian Liao, Woogeun Rhee, Zhihua Wang

Abstract:

This article presents a coherent polar phase-tracking receiver (PT-RX) for low-power Internet-of-Things(IoT) applications that supports Gaussian frequency-shift keying (GFSK), quadrature amplitude modulation (QAM), and amplitude phase shift keying (APSK). Existing single-path closed-loop receivers achieve low power but suffer from a fundamental tradeoff between loop stability and adjacent channel rejection (…

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3712802
Publisher: IEEE

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Design and Analysis of Windmill-Shaping-Geometry Eight-Phase Oscillator Incorporating Magnetic and Dual-Injection Coupling Techniques

Design and Analysis of Windmill-Shaping-Geometry Eight-Phase Oscillator Incorporating Magnetic and Dual-Injection Coupling Techniques 150 150
Author(s): Ya Zhao, Runchen Wang, Lingao Huang, Haitao Ren, Jun Yin, Pui-In Mak, Li Geng, Chao Fan

Abstract:

This article reports a compact millimeter-wave (mm-wave) quad-core eight-phase oscillator featuring magnetic coupling and dual-injection coupling. Specifically, the quad-core oscillator is integrated in an LC-ring configuration via a windmill-shaping transformer for phase noise (PN) and chip area reduction. The eight-phase oscillator could eliminate the oscillation mode ambiguity and save the …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3714874
Publisher: IEEE

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