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DIY & Tutorials
DIY For Audio
My first DAC
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<blockquote data-quote="fredeb" data-source="post: 1066037" data-attributes="member: 13623"><p>LJM developed these boards and sold them as AK4393 , but this board has AK4396 which requires a different Low Pass Filter RC Network . </p><p></p><p>On page 34 of the datasheet an example of the correct filter configuration is shown for one opamp on the output with table showing roll-off of Low Pass Filter at 20 , 50 and 80 khz . </p><p></p><p>The subsequently show a 2 opamp option for 3dB gain and a 3rd order LPF as recommended by SACD format book . </p><p></p><p>Speaking of opamps I also remembered how good LME49720/LM4562 (same thing) can be .</p><p>Get one of those ! </p><p></p><p>How does it sound compared to your cd players integrated DAC at this point ?</p></blockquote><p></p>
[QUOTE="fredeb, post: 1066037, member: 13623"] LJM developed these boards and sold them as AK4393 , but this board has AK4396 which requires a different Low Pass Filter RC Network . On page 34 of the datasheet an example of the correct filter configuration is shown for one opamp on the output with table showing roll-off of Low Pass Filter at 20 , 50 and 80 khz . The subsequently show a 2 opamp option for 3dB gain and a 3rd order LPF as recommended by SACD format book . Speaking of opamps I also remembered how good LME49720/LM4562 (same thing) can be . Get one of those ! How does it sound compared to your cd players integrated DAC at this point ? [/QUOTE]
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DIY & Tutorials
DIY For Audio
My first DAC
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