DEM-DAI1704/06 Demo Board User's Guide

The DEM-DAI1704/06 is an evaluation module for the PCM1704 and DF1704/DF1706 digital-to-analog converters (DACs). This module can achieve 24-bit/96-kHz sampling format. This DEM-DAI1704/06 uses two PCM1704 DACs (stereo), two OPA627 for current/voltage amplification, an OPA2134 in a second-order low-pass filter (LPF) in the analog section, and a digital audio receiver and a DF1704/DF1706 DAC in the digital section. Digital data can be connected to either input of hte DF1704/DF1706 or directly input into the PCM1704. An SPDIF signal is also accepted by the digital audio interface device (coax and optic). The DEM-DAI1704/06 requires three power supplies: 5 V for digital, and +/-15V for the analog output circuit.