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 (THD)
Sample Rate (kHz) 8-192
Analog Power Supply (V) 3.3
Digital Power Supply (V)
Operational Power Consumption (mW) 35.5-44.4
Output Level (Vrms) 2.1
Package 20 WLCSP

Software and Tools

WM8533 Setup

Sep 7, 2018, Rev 1.1 : 1.6 Mb


Comprehensive Solutions