CS43L22

The CS43L22 is low-power stereo digital-to-analog converter (DAC) with integrated headphone and Class D speaker amplifiers that operates from a low voltage analog and digital core. The DAC output path includes a digital signal processing engine with various fixed-function controls, such as tone and volume control, and includes de-emphasis, limiting functions and beep generator that delivers tones selectable across a range of two octaves. The stereo headphone amplifier is powered from a separate positive supply and the integrated charge pump provides a negative supply allowing for a ground-centered analog output to eliminate the need for DC blocking capacitors. The Class D stereo speaker does not require an external filter and can be powered directly from a battery.