DIY ES9018 DSD PCM 32bit DAC with COMBO384

[666mille]

After finishing the hardware and software of my "MilleDAC"......I will present it the community. The DAC was born from a hobby around 7 months ago.
This is the reason why it was not intended to sell this DAC. So the costs was a minor point.
The analog part was simulated with Orcad.
It has the following features:

• Based on ES9018 DAC in 8Ch Stereo mode.
• Amanero COMBO384 USB input for up to DSD512 and PCM384kHz
• Optical Input and digital input
• Full LME49990 I/V Stage
• LME49600 Audio Buffer for headphone output
• additional analog output
• crystek cchd-575-50-100 ultra low noise crystal oscillator
• 7 power phases based on TPS7A3301 and TPS7A4701
• Atmel AT32UC3L064 32bit Microcontroller
• 4 layer PCB with gnd and power plane and 2 Signal planes
• 160x100mm PCB
• Fully seperated grounds for analog and digital
• In analog part use of ±0.01% resistors
• Use of very good Nichicon capacitors
• Touchscreen lcd for visualisation and control of input and volume

Last but not least some pictures!
or look at http://mille.click
http://mille.click/milledac-es9018-audio-dac-amp.html
Enjoy!
regards
666mille

 

[zdr]

wicked!

 

[mlee]

Thats a super nice build!!

 

[JensH]

It looks very good! The numbers you have written on the PCB, is that measured performance or expected performance given by the ES9018 data sheet?

 

[Julf]

Is that 32 bit floating point or integer? 133 dB is of course equivalent to about 22 bits.

 

[666mille]

@ zdr & mikealanlee
thx

@ JensH
It´s only the expected performance given by the datasheet. Unfortunately I have not the right instruments to measure the results. I have only a spectrum analyser which spectrum is 10kHz-3Ghz. I will look to get the right instruments to measure the DAC.

@ Julf
It´s integer


regards
666mille