You may also want to check out these articles on Cadence Online Support http://support.cadence.com Article 11187476: How to turn off hidden state checker when running pss/hb analysis. and Article 20384843: FAQ: SpectreRF Convergence tips for Shooting PSS analysis (Article 20409487 covers the same for HB) Verilog A: Models designed with event-driven digital semantics in mind often do not work well in RF analyses. Transient analyses require only the large-signal circuit behavior to be defined. Most RF analyses require that the small-signal behavior also be well-defined and well-behaved. Harmonic balance does not work well with discontinuities of any type, for example “transition” statement. “transition” statement is an issue for all RF analyses. Avoid if possible in RF analyses. “delay” is usually difficult for shooting. Consider removing or replace by lumped approximate element. best regards, Tawna
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