r_d
New Head-Fier
- Joined
- Apr 11, 2009
- Posts
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I've been playing around with the idea of building an S/PDIF DAC for the past few weeks, and I think I've got a start. I'm sort of new to the whole DIY audio thing, so I'm sure my current design is full of problems. It uses a DIR9001 for the S/PDIF codec and a PCM1792 to do digital/analog conversion.
Schematic:
Incomplete board (I'll probably make significant changes):
If I build this, I might just jumper the BUF364Ts to save a little money. If they're necessary, I can always add them later. I may also substitute the OPA2132 op-amps for OPA2227s or omit the DC servo.
I've got two main issues.
The first is that I've never made/bought a PCB before. Everything I've done so far has been on perf board or point-to-point. I don't really like the idea of working with strong acids or waiting months to get a board that might have some flaw in it that I overlooked.
Additionally, I don't have a good +/- 12/15V power supply. Yet.
Perhaps this is too ambitious for a beginner, but I've never learned anything by doing things the easy way.
Schematic:
Incomplete board (I'll probably make significant changes):
If I build this, I might just jumper the BUF364Ts to save a little money. If they're necessary, I can always add them later. I may also substitute the OPA2132 op-amps for OPA2227s or omit the DC servo.
I've got two main issues.
The first is that I've never made/bought a PCB before. Everything I've done so far has been on perf board or point-to-point. I don't really like the idea of working with strong acids or waiting months to get a board that might have some flaw in it that I overlooked.
Additionally, I don't have a good +/- 12/15V power supply. Yet.
Perhaps this is too ambitious for a beginner, but I've never learned anything by doing things the easy way.