Stereo Audio Sigma-Delta Digital-to-Analog Converter

CMOS

The MC145074 is a high precision, Stereo Audio Digital–to–Analog Converter that utilizes second order sigma–delta modulators with 2–tap FIR feedback architecture. The part can be used as a stand alone stereo digital modulator, or as a companion part to the MC145076 smoothing filter to achieve high quality, low cost audio performance.

• Peak S/(N+D) > 100 dB

• Single 5 V Supply Operation

• Accepts 16, 18, or 20–Bit Data Words

• Dual/Single Pin Data Input Modes

• Programmable WCLK Divider

• Operating Temperature Range: – 40 to + 85°C

• Low Power Consumption: 40 mW Typical

• Companion to MC145076 Stereo Audio FIR Smoothing Filter