| 摘要 |
The present invention relates to an integrated circuit comprising at least one supply voltage terminal (262) configured to receive a supply voltage for operation of the integrated circuit, at least one input terminal (122, 124, 222) configured to receive an analog input signal corresponding to an audio signal, and at least one output terminal (132, 134, 232) configured to provide an analog output signal. The integrated circuit further comprises a signal strength detector configured to detect the signal strength of the analog input signal. The integrated circuit is configured to amplify the audio signal based on the detected signal strength and to output a corresponding amplified signal at the at least one output terminal (132, 134), and a signaling circuit configured to indicate an amplification setting of the integrated circuit at the at least one supply voltage terminal (262) or the at least one output terminal (132, 134, 232). The invention further relates to a circuit assembly (100, 200, 300) comprising a signal source (110), a signal processing device (190, 390) and an amplification circuit and a method for operating such a circuit assembly (100, 200, 300). |
