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The NAU8223 is a stereo high efficiency filter-free Class-D audio amplifier, which is capable of driving a 4Ω load with up to 3.1W output power. This device provides chip enable pin with extremely low standby current and fast start-up time of 3.4ms. It has five selectable gain settings (i.e. 0dB, 6dB, 12dB, 18dB and 24dB) , which can be controlled by a single gain pin.

The NAU8223 is ideal for the portable applications of battery drive, as it has advanced features like 87dB PSRR, 91% efficiency, ultra low quiescent current (i.e. 2.1mA at 3.7V for 2 channels) and superior EMI performance. It has the ability to configure the inputs in either single-ended or differential mode.


Data Sheet

  • Data Sheet

  • File name Version Update Download
  • NAU8223 Datasheet 1.3  2013/10/01
  • Development Tool

  • File name Version Update Download
  • NAU8223 Demo Board User's guide 1.0  2016/04/12
  • NAU8223 EVB User's Manaul 1.0  2016/04/12
  • User Manual

  • File name Version Update Download
  • NAU8223 Demo Board User Manual 2013/08/24


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Part No Check Disty Description SNR(dB) Output Power (W) Gain (dB) Standby Current (uA) Operating Voltage (V) Temp ( °C) Development Tools Package
NAU8223 Check Disty 3.1W Stereo Filer-Free Class-D Audio Amplifier, 5 gain steps with Differential / Single ended inputs 103 3.1W into 4Ω at 5V THD+N <10% 0,6,12,18,24dB <1 2.5 to 5.5 -40 to 85 NAU8223-EVB QFN20

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