MUTE CONTROL DEVICE OF AN AUDIO DEVICE ELIMINATING POP NOISE CREATED IN A SYSTEM POWER ON/OFF PROCESS OF AUDIO DEVICE

摘要

PURPOSE: By controlling a standby power provided to the mute control circuit and the power provided in a system power on/off process the mute control device of the audio device prevents the generation of the pop noise.;CONSTITUTION: According to a power supply unit(10) is the on/OFF of the system power, the function of secluding the power source the supply. According to a mute circuit part(30) is the mute control signal, the audio signal is muted. A delay(20) is installed between the power supply unit and mute circuit part. Delay in advance delays the power provided in the power supply unit according to the on/OFF of system as the fixed time.;COPYRIGHT KIPO 2010