Patent ID: 6622106
Filing Date: 2003-09-16
Classification: G01R

Abstract:
A digital device for testing and calibrating the oscillation frequency of a semiconductor integrated oscillator, the device comprising:at least one storage and control section and a plurality of connection pins connected bidirectionally to said storage and control section, at least one of said input pins receiving a reference signal of known duration from a reference signal generator, and having as input at least first and second control parameters corresponding to limiting values of a predetermined range of values of the oscillation frequency sought for the integrated oscillator circuit; means of comparing said signal of known duration and the oscillation frequency signal from said integrated oscillator circuit, said comparing means comprising a counter configured to count clock pulses for the duration of the reference signal; means, connected to said compare means, of generating calibration values for the signal from said integrated oscillator circuit; and means of forcing storage of final calibration values of the signal from said integrated oscillator circuit into said storage and control section.