DAC-END R (ES9018) full assembled board

[smoothquark]

Hi smoothquark!

you get the USB, and you test it ??

please tel me all your dac! Thanks many many!
quanghao

Yes, works very well with new amanero. Standby still a problem (cannot go from on to standby) and would like 12v triggers.

 

[quanghao]

Yes, works very well with new amanero. Standby still a problem (cannot go from on to standby) and would like 12v triggers.

no triggers out!

Standby only for when you power DAC, not for off it!

Only use the remove for turn one DAC!

thanks!

 

[smoothquark]

no triggers out!

Standby only for when you power DAC, not for off it!

Only use the remove for turn one DAC!

thanks!

Having standby function is then pointless!

 

[quanghao]

Having standby function is then pointless!

the code fix it, may be Andrea can change it!~

 

[smoothquark]

the code fix it, may be Andrea can change it!~

I think andrea is working on it. Waiting to order my pic kit. I hope I can have access to the source to play with it.

 

[rredline]

Hi guys!
Problem solved 😀

Lmv7219 replaced with that acquired from rs-components.
Now locked from 32khz to 192khz without any glitches.

Tried with two input configurations:
1) input transformer + 0.1uF and 75r to ground

So the conclusion is...

To solve the S/PDIF 96K/192K locking issue, we have to:

1) Replace the defective LMV7219 comparator IC.
2) Add a 0.1uF capacitor at C36.

Am I right?

 

[danny_66]

So the conclusion is...

To solve the S/PDIF 96K/192K locking issue, we have to:

1) Replace the defective LMV7219 comparator IC.
2) Add a 0.1uF capacitor at C36.

Am I right?

Don't forget to cut the trace at C36 before adding the cap 🙂

 

[misterwolf]

Hi guys!
Problem solved 😀

Lmv7219 replaced with that acquired from rs-components.
Now locked from 32khz to 192khz without any glitches.

Tried with two input configurations:
1) input transformer + 0.1uF and 75r to ground
2) no input transformer + 0.1uF and 75r to ground

Tried both configurations with 1mt TV cable and 0.5mt tasker c123 cable.

Tomorrow I'll replace Lmv7219 of AES/EBU input and go to recording studio for the test...

I'm back from the recording studio.
I confirm, after replacing the lmv7219 and the addition of the 0.1uF capacitor, the excellent locking of AES/EBU input up to 192kHz.

 

[kmajjo]

below is the circuit diagram for DAC output, use the LL1684 transformer, can use the V DAC output. For example: ES9018 .....

And some PCB pictures, invite you to watch!

Hello Quang Hao,
I don't know if it's an important detail but for me pin 2 and 3 of xlr connector must be inverted .

Br
Jacky

 

[judo]

I'm back from the recording studio.
I confirm, after replacing the and the addition of the 0.1uF capacitor, the excellent locking of AES/EBU input up to 192kHz.

What is the case of the lmv7219 sot23 or sc70 I can not tell without a microscope ?

 

[NicMac]

below is the circuit diagram for DAC output, use the LL1684 transformer, can use the V DAC output. For example: ES9018 .....

And some PCB pictures, invite you to watch!

Will you provide PCB's for this transformer output stage?

 

[misterwolf]

What is the case of the lmv7219 sot23 or sc70 I can not tell without a microscope ?

sot23

 

[judo]

Thanks

 

[Erlend Sæterdal]

Will you provide PCB's for this transformer output stage?

I am sorry to say I allready bought LL 1684 a week ago in USA. Well a bit stupid off me because I could have bought it by Quanghao it seems. Also I could have bought it 20 km from here which I knew.

 

[quanghao]

Will you provide PCB's for this transformer output stage?

yes , from me!
thanks

 

[quanghao]

Hello Quang Hao,
I don't know if it's an important detail but for me pin 2 and 3 of xlr connector must be inverted .

Br
Jacky

yes, this file!
thanks

 

[misterwolf]

I have tested bandwith with lundall ll1684 and 2,2uF Jantzen +10k to ground.
Input 192khz coax, output 47k resistor.

8Hz to 35kHz +/-0.2dB 😀

 

[quanghao]

Last time, you have to send a letter asking me to do for LL1684 PCB DAC, so I would make a list for you to register:

1.

 

[Halook]

Hi guys!
Problem solved 😀

Lmv7219 replaced with that acquired from rs-components.
Now locked from 32khz to 192khz without any glitches.

Tried with two input configurations:
1) input transformer + 0.1uF and 75r to ground
2) no input transformer + 0.1uF and 75r to ground

Tried both configurations with 1mt TV cable and 0.5mt tasker c123 cable.

Tomorrow I'll replace Lmv7219 of AES/EBU input and go to recording studio for the test...

So in addition to replacing the Lmv7219, do we need to do one of the following?

1) input transformer + 0.1uF and 75r to ground
2) no input transformer + 0.1uF and 75r to ground

 

[NicMac]

Interest list for LL1684 PCB:

1. NicMac, 1 set of LL1684 PCBs (possibly also the transformers)

(not sure if I understood correctly that we should start a list here - I also send a PM)