Wiring structure for audio signal conversion apparatus for improving cross-talk, and audio signal conversion apparatus

Abstract

The embodiments provide an apparatus for converting an audio signal, in which a left channel line and a right channel line connected to an amplification unit of an audio signal converting apparatus are covered with the ground and connected to a chassis of the audio signal converting apparatus, and a digital signal line and an analog signal line are disposed to be spaced apart from a substrate to improve crosstalk and remove noise.

1 . A wiring structure of an apparatus for converting an audio signal, comprising:
 a converting unit converting, when a digital audio signal is input through a digital signal line, the digital audio signal into an analog audio signal and outputting the analog audio signal through an analog signal line; and   a ground member covering a left channel line and a right channel line connected to an amplification unit of an audio signal converting apparatus in which an amplification unit amplifying the analog audio signal is implemented on a substrate with a ground and connected to a chassis of the audio signal converting apparatus.   
     
     
         2 . The wiring structure of  claim 1 , wherein the ground member is separately formed by a first ground member covering the left channel line and a second ground member covering the right channel line. 
     
     
         3 . The wiring structure of  claim 1 , wherein the ground member is divided into an upper ground member and a lower ground member covering parts of the left channel line and the right channel line and the upper ground member or the lower ground member is connected to the chassis. 
     
     
         4 . The wiring structure of  claim 1 , wherein the digital signal line and the analog signal line are disposed on one surface of the substrate to be spaced apart from each other by a predetermined distance or more. 
     
     
         5 . The wiring structure of  claim 1 , wherein the digital signal line is disposed on one surface of the substrate and the analog signal line is disposed on the other surface of the substrate. 
     
     
         6 . The wiring structure of  claim 1 , wherein the substrate has a lamination structure and the digital signal line and the analog signal line are disposed to be spatially spaced from each other on different layers in the substrate formed in the lamination structure. 
     
     
         7 . An apparatus for converting an audio signal, the apparatus comprising:
 a substrate;   a chassis connected to the substrate and implemented by a conductive material;   a power source terminal connected to the substrate;   a converting unit connected to the substrate and converting, when a digital audio signal is input through a digital signal line, the digital audio signal into an analog audio signal and outputting the analog audio signal through an analog signal line;   a clock generating unit connected to the substrate and determining an operation timing when converting the digital audio signal into the analog audio signal based on the digital audio signal;   an amplification unit connected to the substrate and amplifying the analog audio signal; and   a ground member covering a left channel line and a right channel line connected to the amplification unit to which the analog audio signal is output with a ground and connected to the chassis.   
     
     
         8 . The apparatus of  claim 7 , wherein the audio signal converting apparatus is implemented as a module type and formed to be coupled to an audio signal reproducing apparatus. 
     
     
         9 . The apparatus of  claim 7 , further comprising:
 a noise removing unit connected to the substrate and removing a noise component which comes from the power source terminal stepwise and transferring power to the clock generating unit, the converting unit, and the amplification unit from the power source terminal,   wherein the power source terminal is separated into a plurality of power source terminals and there are a plurality of noise removing units, and the plurality of noise removing units are connected to the plurality of separated power source terminals, respectively to individually remove the noise component.   
     
     
         10 . The apparatus of  claim 9 , wherein the noise removing unit includes a primary noise removing unit connected to a voltage input node, a secondary noise removing unit connected to the primary noise removing unit, a tertiary noise removing unit connected to the secondary noise removing unit, a quarternary noise removing unit connected to the tertiary noise removing unit, and a voltage output node connected to the quarternary noise removing unit. 
     
     
         11 . The apparatus of  claim 7 , further comprising:
 a mute unit including a first mute processing unit muting an audio signal at a time when negative pop noise is present based on a predetermined timing and a second mute processing unit muting the audio signal at a time when positive pop noise is present based on the timing,   wherein the mute unit is connected to the substrate and outputs the analog audio signal from which the noise is removed, and   the ground member covers a left channel line and a right channel line connected to the mute unit to which an analog audio signal from which the noise is removed is output with the ground.   
     
     
         12 . The apparatus of  claim 7 , wherein the digital signal line and the analog signal line are disposed on the substrate to be spaced apart from each other by a predetermined distance or more.