FDA803U & FDA903U Single Bridge Class-D Amplifiers
STMicroelectronics FDA803U and FDA903U Single Bridge Class-D Amplifiers are digital input amplifiers with Bipolar-CMOS-DMOS (BCD) technology for automotive audio applications. The amplifiers integrate a high-performance digital-to-analog converter together with MOSFET outputs. The devices can be operated with standard car battery levels (5.5-18V operating, compatible with load dump pulse) and with external step-down generated voltages or emergency batteries. FDA803U and FDA903U are configurable through the I2C bus interface and integrate a complete diagnostics array specially intended for automotive applications, including innovative open load and DC offset detection in play mode. The devices are intended to be used in the standard single DIN car radio box and the tuner.
