From Transport to DAC - the different modes

[PA0SU]

Did you compare it with no filter at all?

Yes, I know some NO-systems. I do not understand why people are so font of NO. To me, oversampling is a must!

 

[irgendjemand]

FPGA

Dear Herb,

thank you for this update. Could you please advise, how shell we put our hands on this? Is it going to be available for everybody soon? I would love to purcase it asap.

Greetings (from Taipei),

IJ

 

[PA0SU]

Dear IY,
I see the guys wednesday and I will ask them what their plans are. The problem is to make it a product! I think it will take another half a year to be so far....... Perhaps Guido will do???

 

[irgendjemand]

Ongoing

Thank you Herb!

Will still have to see, how to manage the replacemnet for my old BB DF1700... As you know I'm using the BB DF1704 (on DIP Adaptor), or the SM5842APT (on a seperate Adaptor).

Moreover, I just purchased a SM5847 replacement for the DF1700, on an Adaptor-Board, from China (as I'm in Taipei right now). My 3rd Filter...

Does not matter: Be sure, I'll be happy to give them all away. Half a year form now? Deal!!

Hmmmmmm... and then, shell I connect the Tent XO2.3 from my Transport, à la Rutgers DACPrincipa4 (through the external BNC cable, bypassing the receiver to the XTI pin nr. 6 on the new DF replacement???? Or may be - there will be no more XTI ??? whatsoever..)

OK, OK, I'll wait to have more info, once it becomes actuall.

Herb, it will be great to finally bypass the terrible influance which any/every common DF has on the sound!!

Last question: What will be now with your reclocking??

Greetings & Thanks

 

[PA0SU]

Re: Ongoing

Thank you Herb!

Last question: What will be now with your reclocking??

Greetings & Thanks

The reclocking will still be needed!!! between the FPGA and the DAC's...........

 

[irgendjemand]

Re: Re: Ongoing

The reclocking will still be needed!!! between the FPGA and the DAC's...........

Stopped Clock Mode on the FPGA? Same 74HC (etc.) Gates?

 

[PA0SU]

Re: Re: Re: Ongoing

Stopped Clock Mode on the FPGA? Same 74HC (etc.) Gates?

Yes Sir.

 

[irgendjemand]

Hi Herb,
I neglected to ask you how is the FPGA doing and if went commercial?
BTW, the last time we corresponded about it was April 2009. So at least I was not too pushy about it.
Greeting from your old DIY friend IJ (meanwhile in Berlin)

 

[PA0SU]

With a DAC PCM1792 no reclocking any more

Hi IY,
as we discussed already at the Phone, you do not need reclocking any more if you use a PCN1792 DAC. You could find a complete description of the application in:

https://www.by-rutgers.nl/PDFiles/Balanced IV-converter.pdf

and

https://www.by-rutgers.nl/PDFiles/I2V details.pdf

and the Dutch (sorry):

https://www.by-rutgers.nl/PDFiles/CD624 met PCM1792.pdf

Succes!
Herbert.

 

[irgendjemand]

Hi Herb,
Yes indeed amd thank you very much for this excellent info.
May be we are mixing 2 things; what I actually meant to ask here was only concerning the programming an FPGA as a Digital Filter, indeed for 48/20.
Yours,
IJ