Return-to-zero shift register FIRDAC

[nautibuoy]

Very nice. Let us know how you get on with it, Ray. Will you replace the opamp circuit with this, or will this just be used as an additional buffer?

I plan to try it instead of the op-amp stage.

 

[nautibuoy]

I had another listen to the RTZ DAC today - you know, the more I listen the more I like it.

It will be really interesting to hear how the valve output stage works with it to contrast with Marcel's op-amp, which certainly delivers excellent results.

This DAC has got to be a must-have for me.

 

[nautibuoy]

Have you had any more thoughts of your own for the next iteration of the RTZ DAC Marcel?

 

[MarcelvdG]

No, I haven't. Just the bug fixes and changeable polarity for MUTE and DSDON.

 

[nautibuoy]

Thanks Marcel.

 

[nautibuoy]

Looking forward to a possible Group Buy for RTZ DAC boards, it will be useful to get an idea of the level of interest from fellow audio DIY'ers so, if that's you, maybe you could add your name to the list below;

nautibuoy - 3 sets

 

[pgour]

Looking forward to a possible Group Buy for RTZ DAC boards, it will be useful to get an idea of the level of interest from fellow audio DIY'ers so, if that's you, maybe you could add your name to the list below;

nautibuoy - 3 sets

pgour - 1 set

 

[nautibuoy]

Possible Group Buy Interest.

nautibuoy - 3 sets
pgour - 1 set

 

[nautibuoy]

The measured noise of the bandgap reference with BCM56DS is smaller than the calculated noise with the NST45011, so the BCM's are the winner.

Marcel, will you rationalise the PCB to remove the pads for the NST45011 devices?

 

[Raj1]

Raj1 1 set

 

[rfbrw]

rfbrw 1 set.

 

[nautibuoy]

nautibuoy - 3 sets
pgour - 1 set
Raj1 1 set
rfbrw 1 set

 

[wealas]

nautibuoy - 3 sets
pgour - 1 set
Raj1 1 set
rfbrw 1 set
wealas 1 set

 

[nautibuoy]

Possible Group Buy Interest.

nautibuoy - 3 sets
pgour - 1 set
Raj1 1 set
rfbrw 1 set
wealas 1 set

 

[barryblue]

Possible Group Buy Interest.

nautibuoy - 3 sets
pgour - 1 se

Possible Group Buy Interest.

nautibuoy - 3 sets
pgour - 1 set
Raj1 1 set
rfbrw 1 set
wealas 1 set

barryblue - 1 set

 

[MarcelvdG]

Marcel, will you rationalise the PCB to remove the pads for the NST45011 devices?

I left them in so far just in case the BCM56DS goes in short supply, but maybe that's unnecessary considering that Mouser still has tens of thousands of BCM56DS in stock.

 

[randytsuch]

Possible Group Buy Interest.

nautibuoy - 3 sets
pgour - 1 set
Raj1 1 set
rfbrw 1 set
wealas 1 set
barryblue - 1 set
randytsuch - 1 set

 

[nautibuoy]

I thought there might be a bit more interest but still good for a small batch of PCBs.

 

[nautibuoy]

I've almost finished breadboarding the valve output stage, the 1800pF caps arrived yesterday so I may be able to get it up and running in the next weekend or two.

 

[JPS64]

I thought there might be a bit more interest but still good for a small batch of PCBs.

I think way more for full equiped board?

JP