Stereo Class D Audio Subsystem With DirectDrive Headphone Amplifier

The MAX9879 combines a high-efficiency stereo Class D Audio Power Amplifier with a stereo capacitor-less DirectDrive Headphone Amplifier Maxims filterless class D Amplifiers with active emissions limiting technology pro- vide Class AB performance with Class D efficiency. The Class D power Amplifier delivers up to 715mW from a 3.7V supply into an 8 load with 88% efficiency to extend battery life. The filterless modulation scheme combined with active emission limiting circuitry and spread-spectrum modulation greatly reduces EMI while eliminating the need for output filtering used in tradition- al Class D devices. By Maxim Integrated Products