A new series of 2/4/6/8-channel D/A converters from Asahi Kasei Microdevices (AKM) is powering the next generation of high-quality consumer electronic devices, measurement equipment, and control systems. The AK4452/AK4454/AK4456/AK4458 premium 32-bit DAC devices have up to eight channels. The devices are based on AKM’s Velvet Sound architecture. Combining fine sound details with the low-distortion architecture and 32-bit resolution digital filter processing, the new technology is already finding applications in new AV receivers, network audio and USB DACs, USB headphones, audio interfaces, and much more.
The digital input in the new DAC series supports up to 768-kHz PCM and 11.2-MHz Direct Stream Digital (DSD), suitable for high-resolution audio source playback. With up to eight channels and a TDM interface allowing daisy chaining, the series also provides a simple solution to a wide range of applications.
According to AKM, its Velvet Sound core architecture was designed specifically to support the high-resolution audio market and achieves the lowest distortion in the industry with –107 dB in the D/A conversion and 115-dB S/N. Using Over Sampling Ratio Doubler (OSRD), the new chips reduce out of band noise and include Impulse Response Designed (IRD) filters integrated with 32-bit processing. Five different digital filters types are selectable according to the user audio and system preferences.
The new lineup is available in 32-pin QFN, 5 × 5 mm (AK4452/AK4454) and 48-pin QFN, 7 × 7 mm (AK4456/AK4458) packages.