New Product  - Premium Audio -

2014/11/17 (2014/12/22 updated)

AK5397: World-Class 127dB Premium 32-bit Stereo ADC

[Product Name]  VERITA AK5397

[Title]  32bit Stereo Premium A/D Converter

[Application]  High-end Audios, Professional Audios

Asahi Kasei Microdevices Corporation (AKM) today launched the AK5397, a high performance 32-bit stereo ADC that achieves class leading performance of 127dB dynamic range for stereo output. This is a flagship addition to AKM’s VERITA series of product in the Audio 4 ProTM family. The AK5397 adopts a newly developed VELVET SOUNDTM technology achieving high-resolution sound recording that realizes a rich sound field and bass representation with less distortion.
The class leading performance with a maximum 768kHz PCM output is supported for digital output, and newly developed 32-bit sound color digital filters are integrated for the best sound quality.
The AK5397 is suitable for high quality studio mixers for recording high-resolution audio.


1.   128 times Oversampling Stereo A/D Converter

2.   32-bit Digital Filters

3.   Sampling Rate: 8kHz ~ 768kHz

4.   Low Distortion Full Differential Inputs

5.   SCF

6.   OVF Output

7.   Soft Mute

8.   THD+N: -108dB

9.   DR, S/N: 127dB

10.  Power Supply: 4.75~5.25V (Analog), 3.0~3.6V (Digital)

11. Package: 44-pin LQFP

Evaluation boards and samples are available now. 

To obtain more information about the AK5397, please visit here.


VELVET SOUND is a brand concept of, “sound philosophy”, given to AKM’s new generation of audio devices and, “new architecture & core technologies”. A new circuit is designed to, “balance the amount of information and intensity”, and, “focus on the original sound”, to achieve rich musicality and high performance. This circuit contains specifications and features suitable for the high-resolution audio era.

About “Audio 4 ProTM

Audio 4 ProTM products are designed for pro audio equipment, including mixing consoles, electronic musical instruments and sound effectors, meeting the highest sound quality standards of recording studios. Audio 4 ProTM products range provides world-leading performance with high quality sound, winning trust within professional audio industry.

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 * Information on this page is current on the date of press release. 

 * AKM, VELVET SOUND Logo™ and Audio 4 ProTM are trademarks of Asahi Kasei Electronics Corporation in Japan, Europe and the United States.