| 摘要 |
An audio output apparatus includes an audio codec receiving a digital audio signal from a system controller and outputting an analog audio signal corresponding to the digital audio signal to an amplifier through a capacitor, and a switch controller triggered by a trigger signal to output a control signal to the amplifier. The amplifier is disabled to cease outputting the analog audio signal in response to the control signal. The trigger signal is generated by one of the system controller, the audio codec, and a power circuit supplying electric power to the system controller, the audio codec, the switch controller and the amplifier upon occurrence of a condition associated with pop noise, and is outputted to the switch controller before the pop noise is generated, such that the amplifier is disabled in response to the control signal from the switch controller and is unable to output the pop noise.
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