palmerr

No, as design and spec tends to change during the prototype stage, I don't publish until I have something worth releasing. The PCBs won't really be suitable for DIY construction due to the QFN CODECs. I'm exploring PCBA with JLCPCB and may...

Still working on it. Unfortunately commercial work needs to come first! I will post when I make any significant progress.

I ran out and re-ordered the wrong CODECs. Waiting on the replacements to arrive. Hopefully this will be the final prototype and then I can start thinking about how to get them into people's hands. PCBA seems to be the best way as there's a...

The new library is published at https://github.com/palmerr23/EtherAudio While it runs fairly smoothly, beware that it is still ***alpha*** code . A substantial quantity of diagnostic prints are embedded in the library code. They can (mostly) be...

Thanks Shawn, I'm still sorting out issues with the cable being plugged in well-after boot-up and disconnections longer than about 30 seconds. However these can be sorted out amongst other things during extended testing.

Yes, the unit produces differential DC-coupled outputs (and inputs). Zero is at 1.5V with my driver, and adjustable in four 0.15V steps from 1.35V to 1.8V (register 40) The zero value signal is not out output from the chip as a separate signal...

Absolutely. I think it unlikely that all 16 outputs will be used often. In the existing matrix mixer, running on Mk 1 hardware, I drive CAT5 ethernet cable (as balanced twisted pairs) for each set of 4 outputs to a stage box and drive individual...

Because the CODECs have high-gain (0-60dB) PGAs and outputs that can source enough current to drive headphones or terminated balanced lines, this design does not need separate preamp or output driver boards. What I have done is made a series of...