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

The WM8533 is a stereo digital/analog (DAC) with integral charge pump and software control interface to provide 2 VRMS line driver outputs using a 3.3 V power supply rail. The device 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 WM8533 is controlled and configured either via 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.


  • 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
Output Level (Vrms) 2.1
Package 20 WLCSP

Technical Documents

WM8533 Product Datasheet

Jul 1, 2012, v4.0 : 708 Kb

2011 EV1 REV1 Schematic and Layout

Oct 1, 2011, v1.0 : 886 Kb


Comprehensive Solutions