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NAU8224
NAU8224 User Manual
April, 2016
Rev 1.0
1. General Description
The NAU8224 is a stereo high efficiency filter-free Class-D audio amplifier, which is capable of
driving a 4Ω load with up to 3W output power. This device provides chip enable pin with
extremely low standby current and fast start-up time. The ability to configure with either
single-ended or differential inputs is included. The NAU8224 has four selectable gain settings of
0dB, 6dB, 12dB, 18dB and 24dB, which can be controlled by a single gain pin. The NAU8224
also has the provision for finer volume control using the 2-wire bus (I2C style) and the bundled
GUI. With
87dB PSRR, 91% efficiency, ultra low quiescent current (i.e. 2.1mA at 3.7V for 2 channels) and
superior EMI performance the NAU8224 is ideal for the portable applications of battery drive.
2. GUI installation procedure
The following steps will describe the installation procedure for the GUI
1. Select the installation package, NAU8224SetupVx.x.EXE,the current version is 1.1
2. The installation will commence and the following screen appears. Click Next.