APA2603 Datasheet | ANPEC

Features General Description The APA2603 is a stereo, high efficiency, filter-free Class D audio amplifier available in SOP-16P and DIP-16 packages. The APA2603 provides the precise DC volume control, the gain range is from -80d B (V VOLUME =5V) to +20d B (VVOLUME=0V) with 64 steps precise control. It’ s easy to get the suitable amplifier’ s gain with the 64 steps gain setting. The filter-free architecture eliminates the output filters pared to the traditional Class-D audio amplifier and reduces the external ponent counts and the ponents high. Besides, it can save the PCB space, system cost, and simplify the design and the power loss at filter. The APA2603 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. The APA2603 has build-in, over-current, and thermal protection that prevent the chip being destroyed by short circuit or over temperature situation. APA2603 is capable of driving 3W at 5V into 4Ω speaker. The efficiency can archive 85% at RL=4Ω when PO=3W at VDD=5V. - - - - - - Operating Voltage: 3.3V-5.5V High Efficiency 85% at PO=3W, 4Ω Speaker, VDD=5V Filter-Free Class D Amplifier Low Shutdown Current - IDD=1µA at VDD=5V 64 Steps Volume Adjustable from -80d B to +20d B by DC Voltage with Hysteresis Output Power at THD+N=1% - 2.6W at VDD=5V ,RL=3Ω - 2.4W at VDD=5V, RL=4Ω - 1.4W at VDD=5V, RL=8Ω Output Power at THD+N=10% - 3.2W at VDD=5V ,RL=3Ω - 3W at VDD=5V, RL=4Ω - 1.75W at VDD=5V, RL=8Ω Less External ponents Required Thermal and Over-Current Protections with Auto Recovery Pin-to-Pin patible APA2069 and APA2071 Power Enhanced Packages SOP-16P & DIP-16 Lead Free and Green Devices Available (Ro HS pliant) - - - - - Simplified Application Circuit Applications ROUTP Stereo Input Signals RINN ROUTN LINN APA2603 LOUTN DC Volume Control VOLUME LOUTP Stereo Speakers - - - LCD TVs DVD Player Active Speakers ANPEC reserves the right to make changes to improve reliability or manufacturability...