Amplitude-to-Phase Conversion in Injection-Locked CMOS Ring Oscillators

Zhaowen Wang

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arXiv · 2412.20069

Amplitude-to-Phase Conversion in Injection-Locked CMOS Ring Oscillators

Zhaowen Wang

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Abstract

Injection-locked ring oscillators (ILROs) are extensively employed for multi-phase clock generation in wireline and optical links. However, existing injection-locking theorems primarily rely on linearized phase-domain or nonlinear time-domain models, which fail to account for amplitude-to-phase conversion effects inherent in ILROs. This paper introduces an enhanced analytical model based on an extension of Adler's equation, explicitly incorporating amplitude-to-phase conversion. Simulation results demonstrate strong alignment with the proposed analytical predictions, validating the model's accuracy in capturing the locking range and phasor relationships.

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BibTeX RIS

Zhaowen Wang. 2024-12-28. Amplitude-to-Phase Conversion in Injection-Locked CMOS Ring Oscillators. https://arxiv.org/abs/2412.20069

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