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楼主 |
发表于 2005-10-9 20:36
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<img src="attachments/dvbbs/2005-10/2005109202133453.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-10/2005109202133453.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-10/2005109202148792.jpg" border="0" onload="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onmouseover="if(this.width>screen.width*0.7) {this.resized=true; this.width=screen.width*0.7; this.style.cursor=\'hand\'; this.alt=\'Click here to open new window\nCTRL+Mouse wheel to zoom in/out\';}" onclick="if(!this.resized) {return true;} else {window.open(\'attachments/dvbbs/2005-10/2005109202148792.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
今天又弄了二个小时,8414和43122部分已经干完,只有EL2224部分了。
我的和WTONG兄的比,把整流滤波另放一块板,取消了输入信号整形,通过在WTONG兄的板上比较,整不整形声音是不一样的,各有千秋,我懒就省了它。
有同学说用洞洞板累,其实做数字电路,洞洞板是很好做的,平行拉二条线,一是电源,一条是地,芯片的脚不是高电平,就是低电平。再想想以三百元的成本就将拥有一台使用了当前世上差不多最顶级解码芯片的DAC,你也不会觉得累。 |
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