EUA4990HIR1
DESCRIPTION
The EUA4990 is an audio power amplifier designed for portable munication device applications such as mobile phone applications. The EUA4990 is capable of delivering 1.36W of continuous average power to an 8Ω BTL and with less than 1% distortion (THD+N) from a 5.0V power supply, and 460m W to a 8Ω BTL load from a 3V power supply. The EUA4990 provides high quality audio while requiring few external ponents and minimal power consumption. It features a low-power shutdown mode, which is achieved by driving the SHUTDOWN pin with logic low. The EUA4990 contains circuitry to prevent from ”pop and click” noise that would otherwise occur during turn-on and turn-off transitions. For maximum flexibility, the EUA4990 provides an externally controlled gain (with resistors), as well as an externally controlled turn-on and turn-off times (with the bypass capacitor). The EUA4990 is available in a 1.5mm × 1.5mm WCSP package.
FEATURES z z z z z z z z z z 2.5V-5.5V operation 60d B PSRR at 1k...
