Infineon Technologies Ag

Infineon Technologies Austria Ag

Susana Paton Alvarez

Andreas Wiesbauer

Dietmar Straeussnigg

Elmar Bach

Luis Hernandez

Antonio Di Giandomenico

David San Segundo Bello

Dietmar Straussnigg

Jorg Hauptmann

Juan Antonio Torreno

Laura Conesa-Peraleja Ruano

According to an embodiment, a method of operating an acoustic device includes buffering, by a buffer circuit, a first electrical signal from an acoustic transducer to produce a second electrical signal, receiving a feedback signal at a supply circuit, and comparing the feedback signal to a first threshold. The feedback signal is based on the first electrical signal. The method further includes, based on comparing the feedback signal to the first threshold, switching between a first mode and a second mode, supplying a first supply voltage to the buffer circuit during the first mode, and supplying a second supply voltage to the buffer circuit during the second mode. The first supply voltage is different from the second supply voltage.

System and method for acoustic transducer supply

A digitized system operates to receive one or more analog signals from a sensor or other component and convert the analog signals to one or more digital signals. An analog-to-digital converter comprises a loop filter, a quantizer and one or more feedback digital-to-analog converters. A gain component provides coefficients along different points of a signal processing path to extend a bandwidth of the analog-to-digital converter. The gain component can modify a signal transfer function of the analog-to-digital converter while preserving a noise transfer function in order to process a signal in a higher frequency band in an extended mode of operation than other signals being processed in a normal operating mode.

Bandwidth extension of oversampled analog-to-digital converters by means of gain boosting

Implementations related to multi-standard digital subscriber line analog-to-digital data conversion are described.

Multi-standard analog-to-digital data conversion

This disclosure relates to adjusting a limit cycle frequency of a pulse width modulation in an analog to digital converter as a function of an input signal level to increase dynamic range.

Increasing the dynamic range of pulse width modulation in analog to digital converters

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Madrid, Spain

Susana Paton Alvarez