Amadeus00
Nice build !
But isn't it better to connect I2S to USB directly to the DAC, bypassing the shift-register?
Nice build !
But isn't it better to connect I2S to USB directly to the DAC, bypassing the shift-register?
My prejudices are similar: JLsound should be better than shift registers because of the reclocking done at output. And shift registers should be better than fpga because...uhm, not sure, but perhaps jitter.
Yet, there have been opinions in this thread from people who have actually compared the three and it seems not to be quite so simple.
I have tried both shift registers and JLS direct in two identical builds, no question JLS direct sounds better.
I have tried both during many testing periods and did not hear difference and also compared it with another xmos and also the cheap aliexpress PCM2706 with no difference 
The major difference I heard mostly on the I/V stage. ... and also filters are creating very much difference in sound, significant (that is why each delta-sigma sounds different - filters) ...
The major difference I heard mostly on the I/V stage. ... and also filters are creating very much difference in sound, significant (that is why each delta-sigma sounds different - filters) ...
I would also add regulators and power supplies, especially for the DAC itself and the IV stage 😉 .
Hence why i need mini power plant to power my pcm63 😅 Made fully custom psu boards for this case. Finally getting time to pack the dac into it's own case.
Which makes sense, since the clocking does not go through the shift registers, only the data.I have tried both during many testing periods and did not hear difference and also compared it with another xmos and also the cheap aliexpress PCM2706 with no difference
The major difference I heard mostly on the I/V stage. ... and also filters are creating very much difference in sound, significant (that is why each delta-sigma sounds different - filters) ...
Hi, it looks like the CPLD board you recommend at https://electrodac.blogspot.com/p/i2s-to-pcm-dac-converter-tutorial-cpld.html is no longer available at Ali Express. (At least the page says that from here in the USA)
I found what appears to be the same board on Amazon at https://www.amazon.com/Development-Learning-Blaster-forJTAG-Connection/dp/B0981CG1Q7 and ordered it from there.
Cheers
Chris
@JCMcNeil
https://www.aliexpress.com/w/wholes...?spm=a2g0o.home.auto_suggest.2.650c76dbpb0dX3
the board is MAX II EPM240 a dirt cheap board, may be one particular seller is out of stock otherwise it is widely available at aliexpress.
Amazon link is the same board with the programmer.
https://www.aliexpress.com/w/wholes...?spm=a2g0o.home.auto_suggest.2.650c76dbpb0dX3
the board is MAX II EPM240 a dirt cheap board, may be one particular seller is out of stock otherwise it is widely available at aliexpress.
Amazon link is the same board with the programmer.
@JCMcNeil Exactly as @rehanabid said, you can find it almost everywhere, from aliexpress up to amazon or ebay ... your order from amazon will work good 😉
I finally completed my AD1862 build today, all working and sounding very nice.
Thanks Vunce. I soldered all the large components on the underside of the PCB so it'll be easy to try different op-amps but as it's going to be used in a second system in a spare room that's about as far as I'll go down the rabbit hole. I have an ACA to build for that system next.