Abstract
A uniform technology-agnostic time-domain model for both linear and nonlinear all-digital phase-locked loops (ADPLLs) is presented. This time-domain model can be used for single-event upset (SEU)-induced perturbation time prediction and SEU sensitivity characterization of common ADPLL topologies. The model is validated against field-programmable gate array-based fault injection experiments and two photon absorption laser experimental results on three different types of designs. The model is applicable to rad-harden by design activities, failure mode predictions, and general ADPLL design optimizations.
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