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APA2068KAI-TRG - Class AB - 2-Channel - Stereo 2.6W - Audio Power Amplifier IC - SOP-16
APA2068 is a monolithic integrated circuit, whic provides precise DC volume control, and a stereo bridged audio power amplifiers capable of producing 2.6W (1.8W)into 4W withlessthan 10%(1.0%)THD+N. The attenuatorrange of the volumecontrol in APA2068 is from 20dB (DC_Vol=0V) to -80dB (DC_Vol=3.54V with 32 steps.
The advantage of internal gain setting can be less components and PCB area. Both of the depop circuitry and the thermal shutdown protection circuitry are integrated in APA2068, that reduce pops and clicks noise during power up or shutdown mod operation. It also improves the power off pop noise and protects the chip from being destroyed by over temperature and short current failure. To simplify the audio system design, APA2068 combines a stereo bridge-tied loads (BTL) mode for speaker drive and 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.