Patent ID: 11863933
Assignee: INFINEON TECHNOLOGIES AG
Field: Measurement (Instruments)
Classification: CPC H  B  G | IPC B  H

Claim 0:
1. A MEMS device comprising:
a MEMS sound transducer; and
control circuitry comprising:
a supply signal provider for providing a high-level supply signal,
a read-out circuitry for receiving an output signal from the MEMS sound transducer, and
a switching arrangement for selectively connecting the MEMS sound transducer to the supply signal provider, and for selectively connecting the MEMS sound transducer to the read- out circuitry based on a control signal,
wherein the control circuitry is configured to provide the control signal having an ultrasonic actuation pattern to the switching arrangement during a first condition of the control signal, wherein the ultrasonic actuation pattern of the control signal triggers the switching arrangement for alternately coupling the high-level supply signal to the MEMS sound transducer, and
wherein the supply signal provider comprises a hold capacitor for storing the high-level supply signal and for providing the high-level supply signal during the transmission mode to the MEMS sound transducer.