joneeboi
Headphoneus Supremus
- Joined
- Jul 7, 2006
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I'm dreaming of a white Christmas where DIY-ing iPod owners can enjoy digital I2S output from their iPods. From the little research I did, the Opus DAC can input I2S, but I'm wondering how to carry this signal to the DAC. I've searched and searched but couldn't find anything on DIY I2S cables anywhere. I gather that the wires can't be too long and need some sort of shielding. Should I just open up an old CD player and yank that I2S cable instead? My plan is to pull the signal from the Wolfson (funnest soldering job ever) and send them to the unused pins on the dock (funnest soldering job ever), which are pins 7, 14, and 17. I'll need a 4th one, so I'm guessing I can steal one from, say, pins, 8, 9, or 10. Apple iPod dock interface pinout and signals @ pinouts.ru tells me that these are used only on iPod photo, so I guess these are fair game too, right? From one of the many iPod-implemented Wolfson datasheets (see diyMod post 1), the data accepted are master clock, bit clock, DAC data, and DAC left/right audio interface. I think usually I2S has only 3 lines, but for some reason the iPod has 4. What does the Opus DAC take in for its I2S module? Essentially we're swapping the iPod's (4G in this case) Wolfson for the Opus Dac's. Has anyone else looked into the matter?
Any help is appreciated.
Any help is appreciated.