New D/A Converter IC with Advanced Digital Filter designed for High Fidelity Audio Equipment

Published  March 1, 2022   0
S Staff
BD34352EKV D/A Converter IC

ROHM Semiconductor has introduced the new D/A converter IC (DAC chip) BD34352EKV and the corresponding evaluation board BD34352EKV-EVK-001 for supporting the playback of high-resolution sound sources in high fidelity audio equipment. This new DAC chip is specially tuned to powerfully express the energy of sound sources while maintaining the natural flat sound characteristics of ROHM’s DAC chips design concept.

Designed to maximally extract and convert high-resolution digital audio data to analog audio signals, this IC features an advanced digital filter that leads to superior numerical performance. It enables customization of the digital filter (FIR filter) in the digital signal processing circuit which affects sound quality. Moreover, preset, custom or external settings can be selected and even the filter’s calculation coefficients and oversampling rate can be programmatically customized. 

Key Features

  • SNR 126 dB (Typ), THD+N -112 dB (Typ) (Note 1)
  • Sampling Frequency 32 kHz to 768 kHz(Note 1)
  • 2 Kinds of Digital FIR Filters (Note 1)
  • DSD 2.8 MHz, 5.6 MHz, 11.2 MHz, 22.4 MHz Available
  • Supports Stereo Mode (2ch) and Mono Mode (1ch)
  • Selectable 4 Device Addresses (38h, 3Ah, 3Ch, 3Eh)

The new BD34352EKV D/A converter IC is now available at a pricing of $16.0/unit (samples, excluding tax).