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

Author

Gyurcsik, Ronald S. ; Jeen, Jzan-ching

Author_Institution

Dept. of Electr. & Comput. Eng., North Carolina State Univ., Raleigh, NC, USA

Volume

24

Issue

2

fYear

1989

fDate

4/1/1989 12:00:00 AM

Firstpage

436

Lastpage

442

Abstract

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.<>

Keywords

circuit layout CAD; directed graphs; network topology; CAD; classification-dependent information; generalized algorithm; layout design; minimum net-to-net spacing; mixed analogue/digital signal nets; net classification table; parasitic capacitances; routeing channel; sensitivity; single-layer-only routing requirement; two-layer detailed channel routing; weighted directed graph; Analog integrated circuits; Application specific integrated circuits; Design automation; Digital circuits; Digital integrated circuits; Integrated circuit synthesis; Parasitic capacitance; Process design; Routing; Very large scale integration;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.18605

Filename

18605