AK4490 USB Dac with dsd support.

[pdb]

...We can do a variant of the gain modules to be a power amplifier module in the range of 50 - 80Watt...

Is that the Class D amp you mentioned some time ago? BR Per

 

[sonnya]

No that is not the case.

The class D board is based on the following chip:

TPA3244

TPA3244 60W Stereo / 110W Peak Ultra-HD Analog-In, Pad-Down Class-D Amplifier | TI.com

 

[pdb]

No that is not the case.

The class D board is based on the following chip:

TPA3244

TPA3244 60W Stereo / 110W Peak Ultra-HD Analog-In, Pad-Down Class-D Amplifier | TI.com

Of course - now I remember. Sorry for the confusion. But it is still an output board for the DAC, isn't it? Looking forward to hear more about the gainstage amp. BR Per

 

[sonnya]

Some of the packages has been send, the ones in transit should have received a DHL Tracking number.

We have had some issues. We had a running software that was working and after some updates it was not okay any longer. We have rolled the software back to the working variant.

BR

Sonny

 

[sonnya]

By using the LPS board it is very easy to get it running.

On the picture we can see how simple the power wiring of the DAC can be,

BR

Sonny

 

[Algar_emi]

Still no news for the shipping of my kit. Sonia can you give me a shipping date?

BTW you said you changed the software to a new working version. Can you post the last working firmware code?

Thanks
SB

 

[sonnya]

Still no news for the shipping of my kit. Sonia can you give me a shipping date?

BTW you said you changed the software to a new working version. Can you post the last working firmware code?

Thanks
SB

Hi SB have you not got a shipping notice from DHL in your Hotmail address?

 

[sonnya]

Waybill: 8646226794
With delivery courier
Sign up for shipment notifications
Wednesday, October 11, 2017 at 15:32
Origin Service Area:
BILLUND - ODENSE N - DENMARK
Destination Service Area:
QUEBEC SERVICE AREA, QC - LAVAL - CANADA
Scheduled Delivery:
Today by End of Day
1 Piece
Wednesday, October 11, 2017 Location Time Piece
19 With delivery courier QUEBEC SERVICE AREA, QC - CANADA 15:32
1 Piece

 

[sonnya]

Still no news for the shipping of my kit. Sonia can you give me a shipping date?

BTW you said you changed the software to a new working version. Can you post the last working firmware code?

Thanks
SB

My plan is to share A dropbox folder

 

[Algar_emi]

Hi Sonnya. Sorry I don't look at my hotmail address that often.
That's ok, just got the dac a few minutes ago 😉

However I paid 5EUR extra for the encoder extra pcb that goes with the small front controller and it was not into the box (just the PCB, I bought the encoder)

Can you send me the small encoder pcb into a mail envellop?

Thanks
SB

 

[sonnya]

Hi Sonnya. Sorry I don't look at my hotmail address that often.
That's ok, just got the dac a few minutes ago 😉

However I paid 5EUR extra for the encoder extra pcb that goes with the small front controller and it was not into the box (just the PCB, I bought the encoder)

Can you send me the small encoder pcb into a mail envellop?

Thanks
SB

Yes for sure

 

[Algar_emi]

Tx, SB

 

[sonnya]

Hi Joseph K and other.

My mail box is overfull! please use "mail at mirand-audio.dk"

 

[Joseph K]

Ok, thanks..

Just a quick question: (or two..)

Maybe You could clarify better the description at around J11, J13.
That is, the method of supplying an external feed.

Thanks again &
Ciao, George

 

[sonnya]

J11 and J13.

For the isolated USB power on the board we use NTE0505MC.

If it gets removed it can be feed with external +5V with J11

J13 if an enable connector for extenal powersupply.

BR

Sonny

 

[Joseph K]

Aha.. J13.
Ok, so it is to synchronize the external-power -on sequence with on-board power.
Thank You!
G

 

[sonnya]

With all the USB Audio DAC V1.2 we have supplied a RS232 female DSUB cable.

It fits directly into a standard USB to RS232 cable.

I would strongly suggest that you all get the SAM-BA V2.15 bootloader.

A link to the bootloader : sam-ba_2.15.exe

 

[sonnya]

We have an USB to RS232 converter that we sell with the chassis.
Alternatively it could be a cable like : USB 2.0 PL2303 | eBay

 

[sonnya]

The simple frontpanel is connected using a 0.5mm pitch 30 pin FFC cable Same side connector.

Würth part number:687 630 050 002 (50mm)
Würth part number:687 630 100 002 (100mm)
Würth part number:687 630 152 002 (150mm)
Würth part number:687 630 200 002 (200mm)

Molex P/N: 0151660333 digikey part number WM11402-ND (254mm)

Be careful when pulling up the Lock. If pulled to much it will break off.

On the picture it can be seen how the cable should be inserted. Be sure that it is installed in parallel with the connector a little off angle and it will not work.

 

[sonnya]

Ravid please e-mail me. I need to empty my diyaudio inbox