Methodology to design-for-testability automation for mixed-signal integrated circuits

摘要

The methodology of design-for-testability automation of mixed-signal IC is proposed. Functional model of DFT automation is presented as IDEF0-diagram based on the system analysis. The list of data of the model's four basic sets (Input, Control, Tools and Output) required for design automation is specified. The purpose and principal realization of the key processes in the model such as simulation, test generation, testing subcircuits generation and decision making are considered. The criteria of selecting an effective DFT-solution for particular circuit design are proposed. Experimental results of the methodology application for analog-digital voice frequency codec are presented.