TDA1543 DAC专题!(心得&制作)

客临盾

http://www.hifi888.com.cn/dispbbs.asp?boardID=11&ID=3441&page=1


[em11]居然连IC的型号也擦掉.实在是高!

[em11]

yq777

明明是1543，还故作神秘，价格比这里的贵了不止四倍

ruanhfgd

快点再来一次，等得我很苦啊！

客临盾

http://bbs.hifi168.com/bbs/article.asp?ntypeid=10&titleid=85069&page=1

yq777

想钱想疯了,很明显是1543的IC

cdq

从作工及完成度来看，还是有可取之处的，如果没实际听过，也不好说。
毕竞成器机不能单单从数元件来算价钱。如果他能用1543来达到1704或1541的水平，为何不能卖到1704或1541的价？－－虽然偶也认为似乎有点不现实

hzp000

我很喜欢你制作的机子，能出让给我吗。联系电话13307657505何老师，谢谢

下山虎

wongkm33

小钳子这批机箱相当好，十分合适我使用。我把它装成下面样子，方便摩机和修理用。唯一缺点是底、面固定面板的12颗螺丝孔攻丝不够彻底，需要重新攻丝，其次面板的4颗不锈钢螺丝比较短，要购买较长的回来更换。<img src="attachments/dvbbs/2005-11/20051130141919886.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/2005-11/20051130141919886.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-11/20051130141940613.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/2005-11/20051130141940613.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-11/2005113014195645.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/2005-11/2005113014195645.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-11/20051130142016909.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/2005-11/20051130142016909.jpg\');}" onmousewheel="return imgzoom(this);" alt="" /><img src="attachments/dvbbs/2005-11/20051130142048162.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/2005-11/20051130142048162.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
增加播放CD信号指示灯，播放时亮灯。
<img src="attachments/dvbbs/2005-11/20051130144336241.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/2005-11/20051130144336241.jpg\');}" onmousewheel="return imgzoom(this);" alt="" />
装配完成后，把1543供给电压调在7.5V，I/V电压约3.8V；试听时噪声甚低，将VR23档开尽，将耳朵移近扬声器，仅闻轻微沙沙声，旋低2档已不可闻了。
换上OPA604后，声音变的相当厚，低音非常出色，这款IC真是名不虚传物超所值！

小鬼头

http://www.diyaudio.com/forums/showthread.php?s=&threadid=69134

Bgt []
diyAudio Member

Offline
Registered: Jan 2005
Location: NL, Voorschoten


Extreme DAC 1543 kit from Hifidiy.net  Post #1  
Started building this DAC and so far it sounds fine when you change the output opamp to an OPA 627 or AD8610. Anyone here has any mods? I will continue testing/modding it if necessary.


__________________
Kind Regards, Bert
UCD400/180, Tripath Amp1B

这上面是他发的帖，说换上OPA627或AD8610，声音良好。

我跟了帖。。。。。说1541 DAC里面的CS8412旁边的去耦电容可以明显改变声音，值得在1543上试试。

X.G. []
diyAudio Member

Online
Registered: Sep 2003
Location: GuangDong China


  Post #2  
hi,the kit is designed by my buddy.

I found in the TDA1541 NOS DAC(not TDA1543) that the de-couple cap of CS8412 may obviously change the sound,you can try....

AKMY5

但是，以我的眼光而言，+12V供电，给CS8412那一路，还是没有HIFI到极限！[em11]

我的也已经做得7788了，只不过没找到合适的变压器，还没有最后完工。给CS8412供电的那一路电源，我以为该分开两路过去，就是模拟和数字的两边，除了LM317是分开的以外，两个LM317前面也应该不要用同一组线，分开两根导线，到+12V的退偶电容处汇合，呈放射状，效果还好！反正板上还有空间！中间再断开，贴那种帖片式的磁珠，末尾靠近LM317的高压端再加大容量的退偶，就更好了！

这次的地线，还有屏蔽地的分布，真的是无可挑剔！

yq777

目前最烦恼的是纪念版的主滤波电容脚位太小了，好电容装不上

6092793

我也想来一个。

烂泥

有那位大哥能把１５４３八块并联的解码跟丽特的八块并联的解码作一次大比拼？？？？？？？？看那个厉害！

yq777

对音质好像没什么明显影响,偶没听出来

tdsl

我装的纪念版1543的6、8脚对对地电位相差0.4V左右，请问如何调整为一致，谢谢

coffin

我也來貼一下：

類比穩壓用訂製的2200uF


交連電容用BlackGate NP 33uF


電路板完成的樣子


用上2ppm的TCXO


最後決定不用OP，直接交連出去


8顆並聯


請多指教！

50mmf2

<>我装的第二台1543，用Sony CDP-553ESD当转盘觉得没有直接装在Teac cdp-4500里面好听，全部都用了标准套件，运放电压+-15V，DAC电压8V，刚买了些大S5534回来，晚上换上去看看有啥变化，本来还想搞几粒AD797的，不过这样搞法主次不分了。</P>
<></P>

syc

偶合用black gate f不错。