Patent ID: 8446155
Filing Date: 2013-05-21
Classification: G01R,H03K

Abstract:
1. A device ( 20 ) for testing an analog circuit ( 12 ), for a combined circuit ( 10 ) comprising this analog circuit and a synchronous digital circuit ( 14 ), said test device comprising a noise emulator ( 22 ) connected to a first power supply source (Uref D ) capable of disturbing a second power supply source (Uref A ) of the analog circuit, where the first and second power supply sources may be a single supply source, the emulator being capable of receiving data representative of a variation curve, over a given time period, of an average (μ I ) and of a standard deviation (σ I ) of a first surge current (I) which would be applied to the first power supply source by the digital circuit, and being capable of applying to the first power supply source, over successive intervals, each successive interval having a duration of said time period, a second surge current (I rep ) equal to: where t[T] is t modulo T and X is a random function obeying a normal distribution and obtained from a pseudo-random signal.