Attached are pictures of my USB converter board. I am using the I2S output as you can see from the soldered wires. Since the pictures I have connected the 5V regulator directly to 14V on the CD player PCB that I am using for its DAC and output stages. I have also removed the 12.000MHz clock and now run the clock on a separate low noise clock board. Both modifications resulted in significant improvements.
What else can I do to this board?
I was thinking that with the clock on a different board, I don't need 5V on the USB board anymore. Can I bypass the 5V regulator and hook the 14V directly to the 3.3V surface mount regulator that powers the TE7022?
Is there a quality 3.3V surface mount regulator that can be recommended as an upgrade to the original one?
Any other suggestions for improvement?
What else can I do to this board?
I was thinking that with the clock on a different board, I don't need 5V on the USB board anymore. Can I bypass the 5V regulator and hook the 14V directly to the 3.3V surface mount regulator that powers the TE7022?
Is there a quality 3.3V surface mount regulator that can be recommended as an upgrade to the original one?
Any other suggestions for improvement?