Audio signal muting apparatus using negative power, and digital signal conversion apparatus equipped with same

A digital signal conversion apparatus, comprising:

• a converting unit which converts an input digital audio signal into an analog audio signal;
• a clock generating unit which determines an operation timing to convert the digital audio signal into an analog audio signal based on the digital audio signal;
• an amplifying unit which amplifies the analog audio signal;
• and
• an audio signal muting device which mutes the analog audio signal based on a timing to remove a pop noise,
• wherein the audio signal muting device includes a mute control unit which removes a pop noise from an audio signal, and applies a negative power to the mute control unit to remove a negative pop noise.