| 摘要 |
A passive processing device (D) is adapted to be interfaced in a full integrated way on at least a first audio signal path defined between a first audio signal source and an audio signal processing means of an electronic device, such as a mobile communication device. This device (D) comprises a first protection means (DE 11 ; DE 12 ) for rejecting electrostatic discharges on the first path, a first rejection means (CR 11, R 11 ; CR 12 ) for rejecting radio signals at least in a chosen frequency band on the first path, and a first AC-coupling means (CC 1 ) for interfacing voltage levels between the first audio signal source and the audio signal processing means.
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