AWDSPx8, high-end DSP DAC(s)

[zdr]

New project in the making🙂

In short: Atmel AT32UC3A3256 (UAC1 and UAC2 modes) as USB-I2S -> ADAU1452 DSP as XO->4x PCM1794A DACs with passive I/V, meant for driving directly amps with 3way speakers + SUB, or 4way. Sort of a digital preamp with XO. Arduino for controlling OLED and for accepting commands from IR remote and encoder. TOSLINK SPDIF in and out.

 

[zdr]

Scratch that, it will be ADAU1452 instead of ADAU1701. Not enough resources in ADAU1701 for 4 way XO with volume control, and I am not using it's DAC's anyway.

 

[zdr]

Almost there! SPDIF in and out added. Or maybe I should put just two SPDIF inputs?

 

[zdr]

Added display and encoder to Arduino, as well as ability to control digital filters on PCM1794A.

 

[pelanj]

Looks good!

 

[zdr]

I managed to squeeze in three different TOSLINK footprints for SPDIF IN/OUT, Toshiba TORX/TOTX, Everlight and DLR1130 from aliexpress.

 

[zdr]

Made it fully compatible with MkIII audio widget firmware. I think it's ready to go.

 

[brianco]

Maybe you would be better if you ask a moderator to move this thread to the 'Digital Line Forum'...it seems that all matters re. DACs are in that section.

 

[zdr]

Maybe you would be better if you ask a moderator to move this thread to the 'Digital Line Forum'...it seems that all matters re. DACs are in that section.

Thanks, will do. I always get confused by two digital names.

 

[zdr]

PCBs are in production.