This paper introduces a Computer-Aided-Test (CAT) tool for Mixed Signal SOC designs. A new DFT strategy has been developed to make the testing scheme digitally compliant. The final DFT solution is generated through scheduling algorithms. The mixed signal cores have been accessed through specially design mechanisms (switches). Extensive experiments have been performed on Mixed Signal SOC benchmarks built of ISCAS?89 circuits for digital cores and ITC?97 circuits for analog cores. Results show that the CAT tool provides a hardware efficient integrated DFT solution.