MAX9768 Series Speaker Amplifiers

Analog Devices' MAX9768 mono, 10 W class D speaker amplifier provides high-quality, efficient audio-power with an integrated volume control function. The MAX9768 features a 64-step dual-mode (analog or digitally programmable) volume control and mute function. The audio amplifier operates from a 4.5 V to 14 V single-supply and can deliver up to 10 W into an 8 Ω speaker with a 14 V supply. A selectable spread-spectrum mode reduces EMI-radiated emissions, allowing the device to pass EMC testing with ferrite bead filters and cable lengths up to 1 m. The MAX9768 can be synchronized to an external clock, allowing synchronization of multiple class D amplifiers. The MAX9768 features high 77 dB PSRR, low 0.08% THD+N, and SNR up to 97 dB. Robust short-circuit and thermal-overload protection prevent device damage during a fault condition. The MAX9768 is available in a 24-pin, thin QFN-EP (4 mm x 4 mm x 0.8 mm) package and is specified over the extended -40°C to 85°C temperature range.