WM8962

WM8962 Ultra-Low Power Stereo CODEC with Audio Enhancement DSP, 1W Stereo Class D Speaker Drivers and Ground Referenced Headphone Drivers DESCRIPTION FEATURES The WM8962 is a low power, high performance stereo CODEC designed for portable digital audio applications. An integrated charge pump provides a ground referenced output which removes the need for DC-blocking capacitors on the headphone outputs, and uses the Wolfson ‘Class-W’ amplifier techniques - incorporating an innovative dual-mode charge pump architecture - to optimise efficiency and power consumption during playback. A DC Servo is used to reduce DC ground offsets. This improves power consumption and minimises pops and clicks. Stereo class D speaker drivers provide 1W per channel into 8 loads, or 2W mono into a 4 load, with a 5V supply. Low leakage, excellent PSRR and pop/click suppression mechanisms also allow direct battery connection to the speaker supply. Flexible speaker boost settings allow speaker output power to be maximised while minimising other analogue supply currents. Control sequences for audio path setup can be pre-loaded and executed by an integrated sequencer to reduce software driver development and eliminate pops and clicks via SilentSwitch™ technology. Flexible input configuration: four stereo inputs or eight mono inputs on Left or Right ADC, with a complete analogue (four single-ended stereo inputs) and digital microphone interface. External component requirements are drastically reduced a...