"Tokyo, Japan, June 27, 2007Asahi Kasei EMD today launched the AK4397, a 32-bit 192kHz high performance audio DAC for professional audio equipment and top-of-the-line consumer DVD/DVD-Audio/SACD player, AV receiver and digital mixer product applications. The AK4397 is the newest line-up of our Audio4proTM product range.
The new 32-bit digital operation block provides a fully 32-bit processing for the audio interface, perfect linear phase digital filter and delta-sigma modulator. It allows high accuracy D/A conversion of 32-bit audio signal generated by high accuracy processor such as 32-bit DSP.
Innovative design techniques include a symmetrical layout for the left-right switched capacitor DAC and fully separated analog power routing to avoid any degradation by cross talk and common impedance. Additionally, own unique switched capacitor DAC with excellent anti-jitter performance, circuit design to suppress the jitter generated internally, dedicated power supply pin for clock circuit result in unprecedented sound quality.
The AK4397 further provides a dedicated input port for direct stream digital (DSD) data input, sampling rate from 30kHz to 216kHz, fully differential analog outputs, digital attenuator, de-emphasis filters, soft mute and zero detection functions. The performance is THD+N of -103dB and S/N of 120dB. The operating voltage is 5V.
The AK4397 is available in a 44-pin LQFP package. Function and software compatibility with the industry standard AK4396 24-bit Audio DAC means a simple upgrade path for AK4396-based systems. For a demo of its high quality sound, the AK4397 evaluation boards and samples are available now. To obtain more information, contact Asahi Kasei EMD Corporation, Audio & Video Business Operation, Nishi-Shinjuku 1-23-7, Shinjuku-ku, Tokyo 160-0023, Japan."
