The APA2606 is a stereo, high efficiency, filter-free ClassD audio amplifier available in SSOP-24 and SSOP-24P packages. The APA2606 provides the precise DC volume control, and the gain range is from -80dB (VVOLUME=0V) to +20dB (VVOLUME =5V) 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 compared to the traditional Class-D audio amplifier, and reduces the external component counts and the components high, it could save the PCB space, system cost, simplifies the design and the power loss at filter. APA2606 provides an AGC (Non-Clip) function, and this function can low down the dynamic range for large input signal. APA2606 can provide from 20dB to -80dB with 64 steps gain decrease for non-clipping function, and this function can avoid output signal clipping. The APA2606 also integrates the de-pop circuitry that reduces the pops and click noises during power on/off or shutdown enable process. The APA2606 has build-in over-current and thermal protection that prevent the chip being destroyed by shortcircuit or over-temperature situation. APA2606 combines a stereo bridge-tied loads (BTL) mode for speaker drive and a stereo single-end (SE) mode for headphone drive into a single chip, where both modes are easily switched by the SE/BTL input control pin signal. APA2606 is capable of driving 2.8W at 5V into 4W speaker. The efficiency can archived 85% at RL =4W when PO =2.8W at VDD=5V. APA2606 is capable of driving 60mW at 5V into 32W headphone. Features G