Characterization techniques for mixed signal system

Abstract

The paper deals with an improved technique for testing mixed signal system (MSS) as the system objects with the dynamic nonlinear and stochastic properties. A proposed technique makes it possible to estimate the dynamic characterization parameters typical as for spectral domain as for histogram testing. The implementation of the testing technique that is described is based on a broadband test signal that simulates actual operating conditions of MSS. By changing mode of the test-signal generation it may be possible to except masking of the signal knocked codes. The technique makes it possible to avoid the standard problems associated with precise estimation of the spectrum of a broadband signal. The proposed technique is well fitted for design for test (DFT) and built in self-test (BIST) schemes to integrated circuits including digital processing unit an on-chip ADC and DAC.