母带级DAC解码器Apogee DA16拆解
录音棚里用的比较多的DAC解码器Apogee DA16有16路平衡输出,模拟部分亮点采用OPA4134四运放做I/V变换,OP275做LPF。模拟部分采用OPA4134四运放做I/V变换,OP275做LPF。时钟部分采用mini-circults JTOS25+压控振荡器VCO组成锁相环PLL时钟。电源部分采用常规工频稳压电源,大水塘加热熔胶固定,音频退偶全三星钽电容。PCB工艺,四层PCB设计。不过,这么一台机器对于普通人来说,价格太贵,也难得一见,今日,笔者就将这台机器拆了,给大家分享一下。
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAyLzAxMDEvMjE0NTExMDY5XzFfMjAyMTAyMDEwMTMzNDQ1NTIuanBn.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAyLzAxMDEvMjE0NTExMDY5XzJfMjAyMTAyMDEwMTMzNDQ3NDAuanBn.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAyLzAxMDEvMjE0NTExMDY5XzNfMjAyMTAyMDEwMTMzNDQ5OTAuanBn.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAyLzAxMDEvMjE0NTExMDY5XzRfMjAyMTAyMDEwMTMzNDU5OS5qcGc=.jpg)
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHBzL2ltYWdlMTA5LjM2MGRvYy5jbi9Eb3dubG9hZEltZy8yMDIxLzAyLzAxMDEvMjE0NTExMDY5XzVfMjAyMTAyMDEwMTMzNDUyMTAuanBn.jpg)
总共8颗AD1853
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDIvMDEwMS8yMTQ1MTEwNjlfNl8yMDIxMDIwMTAxMzM0NTMxOC5qcGc=.jpg)
32颗OP275运放
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDIvMDEwMS8yMTQ1MTEwNjlfN18yMDIxMDIwMTAxMzM0NTU4NC5qcGc=.jpg)
牛牛,功率60W
![](http://pic.ikafan.com/imgp/L3Byb3h5L2h0dHAvaW1hZ2UxMDkuMzYwZG9jLmNuL0Rvd25sb2FkSW1nLzIwMjEvMDIvMDEwMS8yMTQ1MTEwNjlfOF8yMDIxMDIwMTAxMzM0NTcwOS5qcGc=.jpg)
大水塘,模拟部分和数字部分用的型号不同。
![](http://n4.ikafan.com/assetsj/blank.gif)
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多组电源,但没有任何悬念,没有什么复杂的滤波方式。
![](http://n4.ikafan.com/assetsj/blank.gif)
![](http://n4.ikafan.com/assetsj/blank.gif)
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