ROHM has developed the 32-bit D/A converter IC (DAC chip) and evaluation board designed for flagship models in the MUS-IC series optimized for high-resolution audio playback.
Engineered to maximally extract and accurately convert high-resolution sound data to analog, DAC chips are crucial for determining audio equipment quality. ROHM leverages over 50 years of expertise in audio IC development to establish superior sound quality design technology, offering products such as high-fidelity sound processors and high-quality audio power ICs.
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 130dB provides noise performance befitting a flagship DAC chip, while a sampling frequency ofEngineered to maximally extract and accurately convert high-resolution sound data to analog, DAC chips are crucial for determining audio equipment quality. ROHM leverages over 50 years of expertise in audio IC development to establish superior sound quality design technology, offering products such as high-fidelity sound processors and high-quality audio power ICs.
up to 1,536kHz 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, ROHM’s 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.
MUS-IC Series DAC Chip Lineup
Online Sales Information
- Availability: Now
- Online Distributors: DigiKey, Mouser, and Farnell
- The products will be offered at other online distributors as they become available.
- • Applicable Part No: BD34302EKV
- • Evaluation Board Part No: BD34302EKV-EVK-001
- MUS-IC — ROHM’s Highest Grade Audio ICs
- For more information, please visit ROHM’s Musical Device “MUS-IC” web page.
- *MUS-IC is a trademark or registered trademark of ROHM Co., Ltd.
Terminology
High Resolution Audio Source
High-resolution audio sources, often called “hi-res audio,” typically use a sampling frequency of 96kHz or higher and a bit depth of 24 bits or more. In comparison, standard CD-quality audio is played back at a 44.1kHz sampling frequency with 16-bit depth. This means hi-res audio provides significantly more data resolution and dynamic range than standard CD-quality audio, resulting in superior sound quality.
DWA (Data Weighted Averaging)
Technology that improves audio characteristics by balancing mismatches between elements when operating multiple switching components for analog conversion.
THD+N (Total Harmonic Distortion + Noise)
A key performance metric for audio equipment that measures the ratio of harmonics to the fundamental wave. Indicates how accurately the waveform is reproduced — the smaller the value the more faithful the reproduction.
HD (High Definition) Monaural Mode
ROHM’s proprietary digital signal processing technology that improves bit (amplitude) resolution. This allows for improvements in numerical performance while enhancing sound quality to deliver smooth audio that reveals the texture of musical instruments.
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