[Xakepa]

Have anyone been able to dechipher the schematics of that DAC?...I'm interested in the output LPF and the PS block, as I know nothing about modding of the digital part (supposedly descent jitter suppression design, or so I read)...

PCB looks very user friendly so I can try doing that myslef, but if it's already been done why waste time. I have no plans to mess up with the DAC for now...but if you have any suggestions, go ahead...

Thanks.

 

[Juergen]

When I got mine I thought I might open it up to take a peek but IIRC I didn't have a small enough Torx wrench. What size did you use to open it up?

 

[zanash]

You don't need one its very straight forward ....

if you need to do any mods just follow the tracks back there are only about three components in the output after the opamp...

All the chips are marked up .....

its easy to work on as long as your careful.

 

[Xakepa]

So what's the opamp for, 2-pole LPF? Do you imply there's simple RC LPF after the amp - it fits the bill for "3-pole filter"...

Have no time to mess up with it now, besides it sounds pretty good...

Thanks

 

[joe_cool]

I traced out part of the circuit and made a sketch of the analog output stage. There are some minor differences in the values for the differential LP filter but basically the circuit follows this application note.