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D/A Converters

WM8523

100 dB, Variable Sample-Rate D/A Converter with Charge Pump, Line Driver and Software Control

WM8523 Overview

The WM8523 is a stereo digital/analog converter (DAC) with integral charge pump and software control interface to provide 2 VRMS line driver outputs using a single 3.3 V power supply rail. This IC features ground referenced outputs and the use of a DC servo to eliminate the use of line driving coupling capacitors as well as power on pops and clicks. The device is controlled and configured either via the I²C/SPI compliant serial control interface or a hardware control interface and supports audio sampling rates between 8 kHz and 192 kHz using all common MCLK/fs ratios. Main and secondary modes are available and de-emphasis is also supported.

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Product Features

  • Digital volume control from –100 dB to +12 dB

  • I²C/SPI compatible and hardware control modes

  • Data formats: LJ, RJ, I²S, DSP

  • De-emphasis supported

  • Maximum 1 mV DC offset on line outputs

Parametric Specifications

Analog Output TypeSingle-ended
Channels Out2
DAC Dynamic Range (dB)104
DAC THD+N (dB)-89
Sample Rate (kHz)8-192
Resolution (bits)24
Analog Power Supply (V)3.3
Operational Power Consumption (mW)35.64-46.2
Output Level (Vrms)2.1
FeaturesDigital volume control, HW and 2/3-wire SW control
Package20 TSSOP

Design Resources

CAD DIAGRAM

WM8523GEDT

View and download CAD drawings
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