Voice ICs(260)

IoT Solution(46)


The NAU82028 is a mono high efficiency filter-free Class-D audio amplifier, which is capable of driving a 4Ω load with up to 3.2W output power. This device provides chip enable pin with extremely low standby current and fast start-up time of 4ms. The NAU82028 features a highly flexible 2 wire interface with many useful gain settings. The gain can be selected from 24dB to -62dB (plus mute) by using 2 wire interface and GS pin.

The NAU82028 is ideal for the portable applications of battery drive, as it has advanced features like 90dB PSRR at 217Hz, 93% efficiency, ultra low quiescent current (i.e. 1.25mA at 3.6V) and superior EMI performance. It has the ability to configure the inputs in either single-ended or differential mode.