Patent ID: 8325953
Filing Date: 2012-12-04
Classification: H01L,H04R

Abstract:
1. A hearing apparatus chip for processing a signal of a hearing apparatus, comprising: an input pin connected to an input converter to receive microphone signals of a hearing apparatus; an output pin that outputs an amplified acoustic signal; a plurality of separate ground pins comprising a functional ground pin and an EMC ground pin; a signal-processing component embedded in the chip comprising an amplifier for receiving the microphone signals as an input signal from the input pin to produce the amplified acoustic output signal at the output pin, the amplifier having a first terminal connected to the functional ground pin via a first ground wire as a reference potential for the chip and a second terminal connected to the input pin for receiving the input signal; and a second ground wire embedded in the chip and insulated by a substrate and galvanically separated in the chip from the first ground wire and connected between the second terminal and the EMC ground pin by way of a capacitor in order to conduct high-frequency interference signals of the input signal as result of electromagnetic couplings to ground prior to being input into the amplifier.