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A generalized approach to routing mixing analog and digital signal nets in a channel

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2 Author(s)
Gyurcsik, R.S. ; Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA ; Jeen, J.-C.

A generalized algorithm for two-layer detailed channel routing of mixed analog and digital signal nets is described. In this algorithm, nets are classified based on the type of signal they carry. A table stores classification-dependent information including data to calculate minimum net-to-net spacing, sensitivity to parasitic capacitances, and the single-layer-only routing requirement. The routing channel is represented by a weighted directed graph. The graph represents relative positions of nets with the channel. The edge weights and directions in the graph are assigned to account for the analog routing concerns provided in the net classification table.<>

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Solid-State Circuits, IEEE Journal of  (Volume:24 ,  Issue: 2 )