74vhc74

[Marlowe]

I'd recommend a frequency around 50 MHz instead of 100 MHz unless you make compact PCB's. Hardwiring 100 MHz circuits is not such a good plan after all you see 😉

Also, the supply and shielding of the circuit needs some attention... (if you don't want to pollute the DAC supply!)

Fedde

Marlowe, in case you don't know, the KWAK-CLOCK circuit is not the same thing as the Asynchronous Reclocking circuit.

The schematic of the Asynchronous Reclocker shows a 100Mhz crystal..

Why don't you use the AR circuit instead?

Hi Fedde and HeadSh0t,

OK, I will use 50MHz and then try other value after 50MHz can work correctly.

KWAK-CLOCK is not a solution for this case. What clock is recommended? I found a schematic of ASRC:
http://users.podolsk.ru/boga/Images/DAC_DigR.gif
but it depends on a low jitter TTL which is not easy to get.

Can I use crystal and FET to build a 50MHz Colpitts Oscillator? or other better choice?

Thanks.

 

[tbla]

i recommend building it as close to elso's ASR as possible....he has refined it for several years.

you could experiment with the supplies.....🙂

 

[fedde]

I realise that my last posts were not clear enough. Elso has two circuits: the Kwak clock and the asynchronous reclocker. Ask him for the circuit (his mail address can be found on my page)

Fedde

 

[Bricolo]

does someone have a nice tutorial about reclocking?

bump!

 

[HeadSh0T]

Marlowe,

That link you provided is a type of asynchronous reclocking but it's not Elso's if that's what you're looking for. Lesha (the guy from that link) used a slightly different method (using an oscillator) and only reclocked one of the signals rather than all three from the CS8412.

Here's a thread from AA with some dialog between Elso and Lesha:
http://db.audioasylum.com/cgi/m.pl?forum=tweaks&n=65379&highlight=lesha&r=&session=

If you haven't already done so, email Elso for this Asynch Reclocking circuit.

Bricolo:
You might want to read this thread from AA to get some insight into reclocking:
http://db.audioasylum.com/cgi/m.pl?forum=tweaks&n=51608&highlight=reclock&r=&session=



Hope that helps