Electronic circuit for a microphone and microphone

Abstract

The electronic circuit (10) comprises an input stage (Pre_amp) for pre-amplifying an electrical input signal of the electronic circuit (10) provided by a transducer (MEMS). Furthermore, the electronic circuit (10) comprises an output stage (T_amp) for providing a microphone output signal by processing an output signal of the input stage (Pre_amp). The electronic circuit (10) comprises an adjustable output load (RS) arranged and configured for setting a current draw of the output stage (T_amp). Additionally, the electronic circuit (10) comprises a measurement circuit (P_det) configured to capture the output signal of the input stage (Pre_amp) and an automatic control circuit (ACC) configured to adjust the adjustable output load (RS) dependent on the captured output signal of the input stage (Pre_amp).

Dependencies are inferred from the claim text.