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ATDAC-8 (discontinued)




USB Powered 384kHz/24bit PCM Galvanic Isolated Audio DAC

Based on XMOS and Texas Instrument PCM5102A.

Only high quality components used, from the world known companies and reliable suppliers: Xmos, AKM, Silicon Labs, Texas Instrument, Analog Devices, Elna, Nichicon, Murata.
Main features:

  • Up to 384kHz sample rate
  • USB Audio Class II Operation:
    • not required drivers for MacOS, Linux, Android.
    • required driver for Windows
  • Full galvanic isolation from USB source (PC, Tablet, etc.)
  • 2Vrms output
  • RCA output
  • Additional 3.5mm jack output for headphones *.
  • No need external power supply in most applications **.
  • For special applications, external power supply input with reverse polarity protection provided ***.



* - Phone output is additional, for high quality sound use RCA with external head amplifier. If use Phone output  don't forget to enable the digital volume control in your player.

** - Using with cellular phone or tablet will quickly discharge it's battery, so using external power supply is recommended. Also if you want to use very long (>1.5m) USB cable.
ATDAC-8 power consumption is about 0.55A, which is a little bit more then the regular USB port provides according to the standard. But I never seen USB port, not satisfied ATDAC-8 with it's current, at least with the short (<0.5m)  USB cable.
However, it is better to us USB cable as short as possible. Also not use very thin USB cables ("Chinese no-name").

*** - External power supply requirements:  5VDC (+0.5, -0.2V), 0.6A at least


Reminder - DAC's output is primary dedicated to amplifier connection. If you want to use headphones, use external high quality  headamp. Due to a lack of power which can be consumed from USB, DAC's Phone Output sounds good just at the low volume.


Q. What is the difference, from the various Chinese DACs from Ali, Taobao and EBay?

A.
1) GALVANIC ISOLATION from PC USB.
2) This is not Chinese product.