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Communication Dans Un Congrès Année : 2022

Limits for Low Supply Voltage Operation of a 5 GHz VCO to Drive a 4-Path Mixer

Résumé

The design and simulation results of a cross-coupled LC VCO in 28 nm FD-SOI for the 4.8 - 5 GHz band are presented. Following a previous work, it is predicted that 0.26 V is the minimum supply voltage of this VCO. It was verified through simulations that the VCO can operate with 0.25 V supply, consuming 90 μW and has a phase noise of -90.2 dBc/Hz at 1 MHz, while complying with the requirements of the following stage. As a consequence of operating at frequencies above the transition frequency of the transistors, the predictions based on the previous study, are less accurate but still provide a good starting point for the design. Moreover, lifting the previous study hypothesis of having an oscillation frequency at least a decade below the transition frequency of the transistors has allowed to further lowering the minimum supply voltage.

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Dates et versions

hal-03833740 , version 1 (28-10-2022)

Licence

Paternité - Pas d'utilisation commerciale

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Citer

Mariana Siniscalchi, Carlos Galup-Montoro, Sylvain Bourdel, Fernando Silveira. Limits for Low Supply Voltage Operation of a 5 GHz VCO to Drive a 4-Path Mixer. 35th SBC/SBMicro/IEEE/ACM Symposium on Integrated Circuits and Systems Design (SBCCI 2022), Aug 2022, Porto Alegre, Brazil. ⟨10.1109/SBCCI55532.2022.9893254⟩. ⟨hal-03833740⟩

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