ATDAC10

Built with the latest Asahi KASEI chips, ATDAC-10 is presented in two versions:

1. Version A: AK4414, 4 channel chip in "double mono" configuration.

   • 32bit, 44.1-384kHz PCM, DSD64, DSD128

2. Version B: AK4490 in the regular configuration.

   • 32 bit, 44.1-384kHz PCM, DSD64, DSD128, DSD256

Main features:

• Using "Active Drive" (LME49723) at the DAC's reference inputs.

• Full differential Amplifier (FDA OPA1632) based Low Pass Filter.

• Thin Film, 0.1% 25ppm Bourns resistors, Sanyo, Nichicon, Elna electrolytic and Wima FKP-2 polypropylene film capacitors.

• Just Inverted OP used in the "diff2non-diff" output stage.

• All OP (except the output) used in SE Class A mode (LME49722)

• Output T-filter.

• Hardware output mute.

• 2 clock oscillators, used for 44.1x and 48x domains.

• 8 different voltage regulator for different device parts, including ultra low noise TPS7A4700 and TPS7A3001.

• THD=0.0002%, THD+N=0.0002%, SNR=113.6dB @-0.3dBFS

• IMD=0.0002%

• -140-145dBFS Noise Floor.

• optional sample rate and mode (PCM/DSD) indication.

Remarks:

1. Version-A is obsolete, abd no more manufactured due to a lack of advantages.

2. The new versions - ATDAC-10S/10S3/10S7 were presented in Feb. 2018.