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發表於 2014-12-19 16:28:36
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本帖最後由 steveha 於 2014-12-19 16:46 編輯
Still have a lot of things to do :-
1) +/- 15v Regulatiors Upgrade and plan for Discrete Output Stage;
2) Additional DoP USB Card with Galvanic Isolation (as I have a spare Amanero and LC574A)
The idea is that Digital Out of N70A will be used as trigger to switch I2S lines. When Digital Out is off, N70A takes control of I2S lines. However, when Digital Out is set to On, the I2S lines will be taken over by the Amanero. Probably the Digital out of N70A will be removed and released space for Amanero.
3) Choke filter for DAC power;
4) Additional Discrete Output Stage and selectable by user (that means to power up either the original OPAMP output stage or the new Discrete Output Stage);
5) Digital In changed to HDMI in (only 'nice to have' so that I can connect my Squeezebox Devices or portable devices);
6) May be crystals upgrade (btw, I am not a die heart fans of crystals);
Actually, I don't know how far I can go.
Any new idea ? |
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