DIYINHK AK4399

[vulejov]

Is anyone here familiar with this device, or someone have schematic..

AK4399 32bit Audio DAC PCB kit - DIYINHK

 

[Nisbeth]

I actually bought one, but I haven't used it. I imagine the schematic is something very close to the one for the EVB here although I haven't checked 🙂

http://www.akm.com/akm/en/file/ev-board-manual/AK4399EQ.pdf

/U.

EDIT: Might be worth a read as well: http://myl8test.wordpress.com/audio/ak4399-dac/

 

[vulejov]

I got the answer.. says practically nothing..

This is a product for diyer to enjoy. It has limitless possibility.
The schematic is designed and printed on the pcb directly, We do not have the schematic in paper version.
The schematic follows the official datasheet, it can be download from the official AKM web site

In pdf for AK4399 there are at least three different ways how to connect I2S signal to the chip..
Also there are several different versions of the analog output..
What is specifically used here obviously nobody knows..

 

[diyinhk]

There are always unlimited ways to customize a DAC for personal taste. This PCB is designed for the largest flexibility and target for advanced diyer who are happy to read the the circuit from the PCB and done the modification/customization for the best sound. It is priced as low as possible and it is only included the DAC chip soldered, no other components are included. People should notes a single ak4399 dac chip is already selling at digikey for 30 without PCB and shipping, of course larger quantity is cheaper.

All the components value are always the choose of diyer, either following the official datasheet or their favourite. If false value are choose, they should hear the different and tune, it's the greatest moment of diying.

Please notes the AK4399 PCB is designed to accept I2S, it do not need a windows driver. If it is used connect to a computer USB port, an USB to I2S module and driver is needed. If it is used connect to a CD player SPDIF out port, an SPDIF to I2S module is needed.

I got the answer.. says practically nothing..

This is a product for diyer to enjoy. It has limitless possibility.
The schematic is designed and printed on the pcb directly, We do not have the schematic in paper version.
The schematic follows the official datasheet, it can be download from the official AKM web site

In pdf for AK4399 there are at least three different ways how to connect I2S signal to the chip..
Also there are several different versions of the analog output..
What is specifically used here obviously nobody knows..

 

[Kastor L]

Thank you for your answer Diyinhk.


Yes the price is very nice and your PCM1794 looks very nice as well.

Are you making more PCB's?

Maybe an R2R DAC chip from Analog Devices?

If you have time can you advise what I need to buy to change the DAC settings? For example the Filter 01 / Filter 02.

 

[vulejov]

Please notes the AK4399 PCB is designed to accept I2S..

AK4399 is designed to accept I2S signal in few different ways, or pats.. read page 6 in the datasheet..
I want to know how has been implemented I2S input on your board..

Also, on page 37 and 38 are a few versions of the analog output .. which is used at your device..

 

[Sergelisses]

AKM’s AK4399. The Best Value 32 bit DAC. | myL8test

have a look to this link 😉

I am surprised by the 100µf capa just at the input of the filter page 37
of the datasheet .

Serge