Audio DAC IC with high-definition monaural mode
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ROHM has developed the 32-bit D/A converter (DAC) chip as well as an evaluation board designed for flagship devices in the MUS-IC™ series optimized for high-resolution audio playback.
The latest product builds on the first generation BD34301EKV MUS-IC™ audio DAC chip, renowned for its sound quality and widely adopted in high-end models from various companies. The new DAC, the BD34302EKV, inherits the core design concept behind first generation DAC chip — natural flat sound — but adds the three elements of spatial reverberation, quietness, and dynamic range from the MUS-IC™ series to authentically reproduce the “texture” of musical instruments for an even more realistic audio experience.
By incorporating a new algorithm for Data Weighted Averaging (DWA), the BD34302EKV achieves a THD+N characteristic of -117dB (THD: -127dB), a key performance indicator that enhances sound quality by achieving a sound quality that conveys a realistic sense of texture. At the same time, the signal-to-noise ratio (SNR) of 130 dB provides noise performance befitting a flagship DAC chip, while a sampling frequency of up to 1,536 kHz allows customers to fully leverage the high-precision calculations of their digital signal processors (DSPs).
In monaural mode, which allocates one DAC chip per channel, the proprietary HD (High Definition) monaural mode contributes to smoother, more natural sound. As part of the MUS-IC™ series, uncompromising craftsmanship has been applied down to the smallest details. Based on years of expertise in sound quality design, the optimal bonding wire material for each terminal of the BD34302EKV was selected to accurately convey the natural “texture” of musical instruments. These features help create the ideal sound sought by high-end audio manufacturers.
https://micro.rohm.com/en/mus-ic
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