Abstract: The present disclosure relates generally to a microphone assembly. The microphone assembly has an acoustic activity detection mode of operation when the electrical circuit is clocked using an internal clock signal generator in the absence of an external clock signal at a host interface, and an electrical circuit of the microphone assembly is configured to provide an interrupt signal to the host interface upon detection of acoustic activity by the electrical circuit. The electrical circuit is configured to control the operating mode of the microphone assembly based on a frequency of the external clock signal in response to providing the interrupt signal and is configured to provide data representing the electrical signal to the host interface using the external clock signal received at the host interface.

Abstract: An electronics chip includes a charge pump and at least one high voltage (HV) electro-static discharge (ESD) module. The charge pump is configured to provide a predetermined voltage across a microphone. The devices described herein are implemented in a standard low voltage CMOS process and has a circuit topology that provides an inherent ESD protection level (when it is powered down), which is higher than the operational (predetermined) DC level. At least one high voltage (HV) electro-static discharge (ESD) module is coupled to the output of the charge pump. The HV ESD module is configured to provide ESD protection for the charge pump and a microelectromechanical system (MEMS) microphone that is coupled to the chip. The at least one HV ESD module includes a plurality of PMOS or NMOS transistors having at least one high voltage NWELL/DNWELL region formed within selected ones of the PMOS or NMOS transistors.

Abstract: An electronics chip includes a charge pump and at least one high voltage (HV) electro-static discharge (ESD) module. The charge pump is configured to provide a predetermined voltage across a microphone. The devices described herein are implemented in a standard low voltage CMOS process and has a circuit topology that provides an inherent ESD protection level (when it is powered down), which is higher than the operational (predetermined) DC level. At least one high voltage (HV) electro-static discharge (ESD) module is coupled to the output of the charge pump. The HV ESD module is configured to provide ESD protection for the charge pump and a microelectromechanical system (MEMS) microphone that is coupled to the chip. The at least one HV ESD module includes a plurality of PMOS or NMOS transistors having at least one high voltage NWELL/DNWELL region formed within selected ones of the PMOS or NMOS transistors.

Abstract: A microphone circuit includes a condenser microphone and a charge pump. The condenser microphone is configured to receive sound energy and responsively convert the sound energy into a microphone output voltage. The charge pump is implemented in a low voltage CMOS process. It is coupled to the microphone and is configured to supply a bias voltage to the microphone allowing the microphone to operate. By using a proper circuit topology, whose maximum output voltage is limited by the breakdown voltage between the NWELL and the substrate, and by blocking the formation of the PWELL around the NWELL at a predetermined distance so that the NWELL is surrounded by a very lightly doped substrate from all sides, the maximum output voltage of the charge pump is increased significantly.

Abstract: An electronics chip includes a charge pump and at least one high voltage (HV) electro-static discharge (ESD) module. The charge pump is configured to provide a predetermined voltage across a microphone. The devices described herein are implemented in a standard low voltage CMOS process and has a circuit topology that provides an inherent ESD protection level (when it is powered down), which is higher than the operational (predetermined) DC level. At least one high voltage (HV) electro-static discharge (ESD) module is coupled to the output of the charge pump. The HV ESD module is configured to provide ESD protection for the charge pump and a microelectromechanical system (MEMS) microphone that is coupled to the chip. The at least one HV ESD module includes a plurality of PMOS or NMOS transistors having at least one high voltage NWELL/DNWELL region formed within selected ones of the PMOS or NMOS transistors.

Abstract: A microphone circuit includes a condenser microphone and a charge pump. The condenser microphone is configured to receive sound energy and responsively convert the sound energy into a microphone output voltage. The charge pump is implemented in a low voltage CMOS process. It is coupled to the microphone and is configured to supply a bias voltage to the microphone allowing the microphone to operate. By using a proper circuit topology, whose maximum output voltage is limited by the breakdown voltage between the NWELL and the substrate, and by blocking the formation of the PWELL around the NWELL at a predetermined distance so that the NWELL is surrounded by a very lightly doped substrate from all sides, the maximum output voltage of the charge pump is increased significantly.

Abstract: The invention relates to a data transformer and a system for wireless transmission of energy and/or data and to a method for wireless transmission of energy and/or data from the primary side to the secondary side of the data transformer and/or vice versa: from the secondary to the primary side.