External DAC

[tllim]

Hello there,

few question about the supported external DAC features

Do you use integer or fractional clock dividers? I.e. would you be able to support both:

44.1 KHz - 44.1KHz, 88.2KHz, 176.4KHz, 352.8KHz and
48 KHz - 48KHz, 96KHz, 192KHz, 384KHz
audio families over I2S?

Would you be able to output DSD over the same I2S pins?
BCLK - DSD Clock
LRCLK - DATA Left
DATA - DATA Right

On the incoming I2S side - what frequencies and bit length do you support?

Can not wait to get the pine64 and plug it to the iancanada fifo/reclocking modules. 
http://www.diyaudio.com/forums/digital-l...r-367.html



BTW could you make a small adapter board for the Euler connector to acces the I2S pins over u.fl sockets as iancanada did for the RPI GPIO?

The Pine A64 board has the master clock where RPi doesn't have, no sure whether still need the clock divider.
Current highest bit rate is 192KHz, we have not try out the 384kHz and not sure whether works.
The DSD data pump to I2S bus is software implementation and needs developers to try out. However, the ES9023 DAC don't accept DSD data and needs to convert over to PCM.
Design a small adapter for Euler I2S pins over u.fl is possible. However, this depend on collaboration and popularity.