BD34301EKV-E2

ADCs/DACs - Special Purpose Overview

The BD34301EKV-E2 is a 32-bit stereo digital-to-analog converter (DAC) from ROHM Semiconductor's MUS-IC series, designed for high-end audio applications. It features two DAC channels with a typical signal-to-noise ratio (SNR) of 130 dB and total harmonic distortion plus noise (THD+N) of -115 dB. The device supports PCM inputs up to 768 kHz and DSD inputs up to 22.4 MHz via I2S interface. Operating on a single power supply between 4.5 V and 5.5 V, it draws approximately 30.5 mA. Housed in an HTQFP-64 package, it operates within a temperature range of -25°C to +85°C.

ADCs/DACs - Special Purpose Feature Summary

• 32-bit resolution with 130 dB SNR and -115 dB THD+N performance
• Supports PCM sampling rates up to 768 kHz and DSD up to 22.4 MHz
• Selectable FIR digital filters: Sharp Roll-Off and Slow Roll-Off
• Dual DAC outputs with I2S and DSD input interfaces

ADCs/DACs - Special Purpose Applications

• High-fidelity stereo audio systems
• Premium home theater receivers
• Professional audio processing equipment

ADCs/DACs - Special Purpose Procurement Notes

Verify the specific suffix E2 against the manufacturer's current datasheet to confirm pinout compatibility and RoHS status. Confirm that the HTQFP-64BV packaging format matches the target PCB design requirements. Ensure the operating voltage range aligns with the system's power supply architecture before integration.

ADCs/DACs - Special Purpose Selection Notes

Select this component when high-resolution audio playback (up to 768 kHz PCM) is required. The choice between Sharp and Slow Roll-Off FIR filters allows customization of transient response characteristics. Ensure the design accommodates the 30.5 mA typical current draw and provides adequate thermal management for the HTQFP-64 package within the specified temperature range.

ADCs/DACs - Special Purpose Part Context

The BD34301EKV-E2 belongs to ROHM's MUS-IC series, which integrates proprietary sound quality design technologies. It serves as a predecessor or sibling to the BD34302EKV, offering similar core specifications but potentially differing in advanced algorithms like DWA variants found in newer generations. It is part of ROHM's standard-grade product line, distinct from automotive-specific variants.

ADCs/DACs - Special Purpose Replacement Considerations

The BD34301EKV is listed as an alias for this part number. For upgraded performance, the BD34302EKV offers enhanced THD+N (-117 dB) and support for 1536 kHz sampling rates, though it may require firmware or hardware adjustments due to potential algorithmic differences.