Anybody using the new ESS Vout DAC (ES9022)?

[jean-paul]

OK I got the tip from someone else but thanks to all people that stay with both feet on the ground and like to discover things and share that openly without holding back details.

 

[jambul]

Dear Patrick,

do you know how to use the single d type flip flop with no "not Q" pin?

should i connect the D with Q and take the connection to signal out ?

thank you

denis

 

[samoloko]

are you guys sure that old system using traditional CS84xx receiver Is not In the same league comparing to new WM8804
can I replace CS8412 In old PCM63 oversampling DAC with WM8804

 

[EUVL]

I don't know how to do frequency divide without not-Q.

Please kindly google :
Frequency Division using Flip-flops


Patrick

 

[jambul]

Yes Patrick,

I have use google, but mostly the single gate d type flip flop using the "not Q" as feedback loop and devide the frequency by 1/2.

well maybe i need to try harder

thank you

denis

 

[EUVL]

No, you need to have not-Q.


Patrick

 

[jambul]

Thank you patrick,

so i need new single gate d type flip flop then 🙂

Denis

 

[jambul]

Hi Patrick,

can we used the dual d type flip flop instead the single one?

thanks

denis

 

[ryanj]

Hi Guys,

In the es9023 data sheet it says best performance will be obtained having at least fs256 for 32k to 96k sampling rates, so it should be fine to use 11.2896Mhz as the master clock.

Has anyone experimented with this?

Is the performance much better using 45.1584Mhz?

Or is it because 11.2896 has a smaller selection of good quality crystals?

Reason being MCK could be fed to a QA550 without using flip flops.

Ryan

 

[EUVL]

My understanding is that the jitter correction inside the ES9022(3) works better with a higher clock frequency.
The datasheet says at least .....
Two FF is easy enough.

But by all means try 11.28 without division and tell us if you hear any difference.


Patrick

 

[jambul]

Hi Patrick,

have you ever try the ECL diferential d type flip flop for frequency division?

and what is your opinion on frequency division using eht ECL type ?
thanks

deni s

 

[ryanj]

My understanding is that the jitter correction inside the ES9022(3) works better with a higher clock frequency.
The datasheet says at least .....
Two FF is easy enough.

But by all means try 11.28 without division and tell us if you hear any difference.


Patrick

Ok, I'll give it a go for the hell of it, but if the advantage of higher clock rate is less jitter then I'm sold. Plus theres a better selection of crystals at higher clock frequencies anyway.

Ryan

 

[EUVL]

45.1584 XO's are not quite easy to get.


Patrick

 

[ryanj]

Vanguard seems readily available, had any experience with them?

Tentlabs seems a bit pricey. Are they worth it?

May I ask what you used for your module?

 

[EUVL]

Vanguard wants a MoQ of something like 600 USD.

I use 7x5 SMD, so Fox is the only one available at DK or Mouser.
We get ours custom made by a local X'tal supplier.


Patrick

 

[Joachim Gerhard]

I got the filter-buffer. "In the Flesh" it looks even smaller then on the picture.
This is real precision work, cool.

 

[EUVL]

Let us know if you want anything changed, or good as is.

😉


Patrick

 

[Joachim Gerhard]

The next days i am at the Frickelfest. When i come home i will test the board.

 

[simonov]

Hi guys,
I'm thinking of upgrading to ES9023. As I'm forced to use standard Sony format I need to use some glue logic. So all I need to do is to set the DAC to LJ mode and delay LRCK by 8 BCK cycles. A master clock 16.9344MHz is coming from an external clock source. This is how the setup looks like:

Regards, Venci.

 

[samoloko]

batteries powered

guys

how do you power your dacs with batteries

Is It fine just to use 3 x 1.2 V NIMH bat - I am scared as when battery Is charged It Is 1.5 V so Vss It Is not 3.6V but 4.5V

do I need to have 3.3 regulator after battery

do I need to use local decouple caps on Vss pins