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Reference DAC Module - Discrete R-2R Sign Magnitude 24 bit 384 KHz

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#5,021
ahh, cool...

soekris said:
Of course, that's why the incoming jitter doesn't matter, assuming no bit errors, as it's reclocked and buffered so the dam1021 clock circuit define the jitter. But the clock oscillator and FPGA have low jitter, not as low as what's possible, but low enough that the dam1021 sounds pretty damn good.... Has actually been discussed early on in this thread.



If you look very close on the dac1101 and dam1121 pictures you might notice some small flip flops between the fpga and the shift registers 🙂
Click to expand...

So one final re-clock after the FPGA then, nice!
 
#5,024
It would be nice if the rev 4 of the 1021 would become more comfortably for the common end user.
E.g. the PCB could be ready for the Toslink and coax Spdif input (the user then would only need to add add the missing components on the PCB if he wants these inputs).
On the other hand, I think the ballanced buffer components need not to be on the board. Only, as for the input, the PCB should be prepared for them, so that the user can add them if needed.
An version with optional onboard USB-in as with the 1101would be nice.
 
#5,031
Soekris,

I bought two of your DAcs and will work to set them up in the next weeks...

my dream-setups:
- BBB with botis and masterclock from your DAC I2S direct
- same, but even with Ian`reclocker in the chain, just to see if more is possible.

It there any way to INPUT the MAsterclock into your DAC-Design at all ? Or bapass your re-clocker for the favour of Ian`s, so usig the different section of your DAC in a more modular way ?

DIYaudio is all about experimenting and I am curious...

Best Regards
 
#5,032
Blitz said:
Soekris,

I bought two of your DAcs and will work to set them up in the next weeks...

my dream-setups:
- BBB with botis and masterclock from your DAC I2S direct
- same, but even with Ian`reclocker in the chain, just to see if more is possible.

It there any way to INPUT the MAsterclock into your DAC-Design at all ? Or bapass your re-clocker for the favour of Ian`s, so usig the different section of your DAC in a more modular way ?

DIYaudio is all about experimenting and I am curious...

Best Regards
Click to expand...

The dam1021 clock circuit is fixed, you can feed it anything you want, but the dam1021 will reclock and buffer using it's fifo.
 
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