Electronic device having an acceleration-sensitive sensor

An electronic device comprising:

• a resonant circuit including an acceleration-sensitive sensor, the acceleration-sensitive sensor being excited to vibrate at least during a testing phase of the acceleration-sensitive sensor;
• and
• an evaluation circuit coupled to the resonant circuit, the evaluation circuit determining a performance reliability of the acceleration-sensitive sensor,
• wherein the resonant circuit includes:
• at least one low-pass filter having a critical frequency substantially below a vibration frequency of the acceleration-sensitive sensor, and
• a divider circuit dividing the vibration frequency of the acceleration-sensitive sensor, wherein at least the divided vibration frequency of the acceleration-sensitive sensor passes through the low-pass filter to the evaluation circuit, and
• wherein the divider circuit includes a flip-flop triggered via a control signal of the evaluation circuit.

An electronic device comprising:

• a resonant circuit including an acceleration-sensitive sensor, the acceleration-sensitive sensor being excited to vibrate at least during a testing phase of the acceleration-sensitive sensor;
• and
• an evaluation circuit coupled to the resonant circuit, the evaluation circuit determining a performance reliability of the acceleration-sensitive sensor,
• wherein the evaluation circuit is controlled by a clock signal generated by the resonant circuit and determined as a function of a vibration frequency of the acceleration-sensitive sensor, and
• wherein the resonant circuit generating the clock signal includes a clock-pulse divider stage having an input, the input receiving the vibration frequency of the acceleration-sensitive sensor, wherein the clock-pulse divider stage includes a monostable flip-flop, and wherein the vibration frequency is received via a pulse shaping stage.