EMA2202

ESMT/EMP GENERAL DESCRIPTION EMA2202 Stereo 2.4W Audio Power Amplifier with DC Volume Control and Selectable Gain 1.1W (typ) into 8Ω ． BTL mode PO at 5V, f=1kHz, 10% THD+N 3W (typ) into 3Ω ． Single-ended mode PO at 5V, f=1kHz, 1% THD+N 85mW (typ) into 32Ω ． Shutdown current 0.1µA (typ) The EMA2202 is a monolithic integrated circuit that provides DC volume control, and stereo bridged audio power amplifiers capable of producing 2W into 4Ω or 2.4W into 3Ω with less than 1.0% THD+N. The EMA2202 incorporates a DC volume control, stereo bridged audio power amplifiers and a selectable gain or bass boost, making it optimally suited for multimedia monitors, portable radios, desktop, and portable computer applications. The EMA2202 features an externally controlled, low-power consumption shutdown mode, and both power amplifier and headphone mute for maximum system flexibility and performance. Advanced pop & click circuitry is built in to eliminate noises that would otherwise occur during turn-on and turn-off transitions. FEATURES ． 32 steps DC Volume Control ． System Beep Detect ． Stereo switchable bridged/single-ended power amplifiers ． Selectable internal/external gain and configurable bass boost ． “Click and pop” suppression circuitry ． Thermal shutdown protection circuitry APPLICATIONS ． Portable and Desktop Computers ． Multimedia Monitors ． Portable Radios, PDAs, and Portable TVs KEY SPECIFICATION ． BTL mode PO at 5V, f=1kHz, 1% THD+N 2.4W (typ) into 3Ω 2.0W (typ) into 4Ω El...