A 34 GHz CMOS VCO with Transformer Tail-Node Filter and TSPC Frequency Divider in 22 nm FDSOI

Engelmann A, Probst F, Hetterle P, Weigel R (2024)


Publication Type: Conference contribution

Publication year: 2024

Publisher: Institute of Electrical and Electronics Engineers Inc.

Pages Range: 87-90

Conference Proceedings Title: 2024 IEEE Radio and Wireless Week, RWW 2024 - 2024 IEEE 24th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2024

Event location: San Antonio, TX, USA

ISBN: 9798350343304

DOI: 10.1109/SiRF59913.2024.10438586

Abstract

This work proposes a compact, low-power CMOS voltage-controlled oscillator (VCO) with distributed transformer tail-node filter for phase noise reduction. The circuit is integrated into a 22 nm fully-depleted silicon-on-insulator (FDSOI) technology, offering high-performance n- and p-MOS transistors. Using a combination of SOI varactors and switched capacitors, a wide tuning range of 22.8%, covering 30.4 to 38.24 GHz, is reached while maintaining a phase noise below -97 dBc/Hz at a 1 MHz carrier offset. An area- and power-efficient true single-phase-clock (TSPC) frequency divider is implemented to ease the use of the VCO within a low-frequency PLL. The overall circuit consumes 9.4 mW supplied from a 0.8 V source and 170 370 m2 core area, including an output buffer and the divider. The circuit performance results in a corresponding FOM and FOMT of -178.3 and -185.3 dBc/Hz.

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APA:

Engelmann, A., Probst, F., Hetterle, P., & Weigel, R. (2024). A 34 GHz CMOS VCO with Transformer Tail-Node Filter and TSPC Frequency Divider in 22 nm FDSOI. In 2024 IEEE Radio and Wireless Week, RWW 2024 - 2024 IEEE 24th Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2024 (pp. 87-90). San Antonio, TX, USA: Institute of Electrical and Electronics Engineers Inc..

MLA:

Engelmann, Andre, et al. "A 34 GHz CMOS VCO with Transformer Tail-Node Filter and TSPC Frequency Divider in 22 nm FDSOI." Proceedings of the 24th IEEE Topical Meeting on Silicon Monolithic Integrated Circuits in RF Systems, SiRF 2024, San Antonio, TX, USA Institute of Electrical and Electronics Engineers Inc., 2024. 87-90.

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