DirectDrive Headphone Amplifier With External Gain

The MAX9820 Windows Vista®-compliant stereo head- phone Amplifier is designed for portable equipment where board space is at a premium. It features Maxim’s patented DirectDrive® architecture to produce a ground-referenced output from a single supply, elimi- nating the large output-coupling capacitors required by conventional single-supply Headphone Amplifiers The MAX9820 features an undervoltage lockout that prevents over discharging of the battery during brownout conditions, click-and-pop suppression that eliminates audible transients on startup, a low-power shutdown mode, and thermal-overload and short-circuit protection. Additionally, the MAX9820 suppresses RF radiation received by input and supply traces acting as Antennas and prevents the Amplifier from demodulating the coupled noise. By Maxim Integrated Products