Patent ID: 6320458
Filing Date: 2001-11-20
Classification: G05F,H03L

Abstract:
A circuit comprising:an integrated structure includinga first external supply terminal and a second external supply terminal for applying an external supply voltage,an analog unit supplied by at least one internal supply voltage derived from the external supply voltage,a low-pass filter connected to the first external supply terminal and to the second external supply terminal, and comprising a first capacitive element,a control terminal connected to the first capacitive element of the low pass filter, anda driving circuit connected between the low-pass filter and the analog unit for supplying the at least one internal supply voltage, the driving circuit comprising at least one filtering capacitive element for filtering the at least one internal supply voltage; andan external capacitive element external to the integrated structure and connected to the control terminal, the external capacitive element having a higher capacitance than a capacitance of the first capacitive element of the low pass filter.