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

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. Master and Slave modes are available and de-emphasis is also supported.

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

Channel(s) Out 2
Resolution (bits) 24
Dynamic Range (dB) 106
THD+N (dB) -89
Sample Rate (kHz) 192
Analog Power Supply (V) 3.3
Supply Current (µA) 3.3
Output Level (Vrms) 2.1
Package 20 TSSOP

Technical Documents

WM8523 Product Datasheet

Aug 1, 2013, v4.2 : 559 Kb

WM8523-6228-DT20-EV1 Example Configurations

Sep 1, 2009, v1.0 : 387 Kb

WM8523-6228-DT20-EV1 Schematic and Layout

Sep 1, 2009, v1.0 : 1900 Kb

6228 EV1 Schematic and Layout

Mar 1, 2009, v1.0 : 2000 Kb

WM8523-6228-DT20-M Example Configurations

Mar 1, 2009, v1.0 : 685 Kb

WM8523-6228-DT20-M Schematic and Layout

Mar 1, 2009, v1.0 : 771 Kb

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