MAX9742

19-0731; Rev 0; 1/07 KIT ATION EVALU E L B AVAILA Single-/Dual-Supply, Stereo 16W, Class D Amplifier with Differential Inputs General Description The MAX9742 stereo Class D audio power amplifier delivers up to 2 x 16W into 4Ω loads. The MAX9742 features high-power efficiency (92% with 8Ω loads), eliminating the need for a bulky heatsink and conserving power. The MAX9742 operates from a 20V to 40V single supply or a ±10V to ±20V dual supply. Features include fully differential inputs, comprehensive clickand-pop suppression, low-power shutdown mode, and an externally adjustable gain. Short-circuit and thermaloverload protection prevent the device from being damaged during a fault condition. The MAX9742 is available in a thermally efficient 36-pin TQFN (6mm x 6mm x 0.8mm) package and is specified over the -40°C to +85°C extended temperature range. o o o o o o o o o Features 2 x 16W Output Power (RL = 4Ω, THD+N = 10%) High Efficiency: Up to 92% with RL = 8Ω Mute and Shutdown Modes Differential Inputs Suppress Common-Mode Noise Adjustable Gain Integrated Click-and-Pop Suppression Low 0.06% THD+N at 3.5W, RL = 8Ω Output Short-Circuit and Thermal Protection Available in Space-Saving, 6mm x 6mm, 36-Pin TQFN Package MAX9742 Ordering Information PART MAX9742ETX+ TEMP RANGE -40°C to +85°C PIN-PACKAGE 36 TQFN-EP* PKG CODE T3666-3 Applications CRT TVs Flat-Panel Display TVs Audio Docking Stations Multimedia Monitors +Denotes lead-free package. *EP = Exposed paddle. Pin Configurati...