So this has become officially the thread for our DigiOne board for RPI , that will allow you to output coaxial to you favorite DAC
A few specs.
RCA and BNC outputs (gold plated) only (absolutely no optical, it has by definition 4ns of jitter). No AES either its not a good medium for digital signals.
Noise level under 100uV ,we hope for 50uV, at the output
Jitter target at BNC/RCA under 3ps on both outputs (we hope for less).
That means no transformer for galvanic isolation , what we do is isolate the board at the input (after the wm8805) and then reclock with NDK Oscillators feed with own LDOs+ filters.
In total we use 10 LDOs on the board, 12 low pass filters, multiple buffers (with 0.07ps added jitter), digital isolators, common mode choke .
We have a target price of 119 Eur...but its not set in stone.
Target release date April 30 (Sunday)...we will do our best but don't take it as a guarantee.
Basically what we think, its that DigiOne will be the best digital transporter on the market at ANY price (yes including those 5kEUR/USD transporters). Please correct me if I am wrong (if we hit those targets)