EUA2510

The EUA2510 integrates a boost converter with a high efficiency mono, Class D audio power amplifier to provide 1.2W continuous power into an 8 speaker when operating on a 3.3V power supply with boost voltage (PV1) of 5.0V. When operating on a 3.3V power supply, the EUA2510 is capable of driving a 4 speaker load at a continuous average output of 1.7W with less than 1% THD+N. The Class D amplifier is a low noise, filterless PWM architecture that eliminates the output filter, reducing external component count, board area consumption, system cost, and simplifying design.

The EUA2510's switching regulator is a current-mode boost converter operating at an adjust frequency of 0.62MHz and 1.25MHz.

The EUA2510 is designed for use in mobile phones and other portable communication devices. The high (88%) efficiency extends battery life when compared to Boosted Class AB amplifiers. The EUA2510 features a low-power consumption shutdown mode. Shutdown may be enabled by driving the Shutdown pin to a logic low (GND).

The gain of the Class D is externally configurable which allows independent gain control from multiple sources by summing the signals. Output short circuit and Thermal shutdown protection prevent the device EUA2510 from damage during fault conditions. Superior click and pop suppression eliminates audible transients during power-up and shutdown.