MAX9770 Datasheet | Maxim Integrated

Description The MAX9770 bines a mono, filterless, Class D speaker amplifier and stereo Direct Drive headphone amplifiers in a single device. The MAX9770 operates from a single 2.5V to 5.5V supply and includes features that reduce external ponent count, system cost, board space, and offer improved audio reproduction. The speaker amplifier makes use of Maxim’s patented Class D architecture, providing Class AB performance with Class D efficiency, conserving board space, and extending battery life. The speaker amplifier delivers 1.2W into an 8Ω load while offering efficiencies above 85%. A spread-spectrum scheme reduces radiated emissions caused by the modulation frequency. Furthermore, the MAX9770 oscillator can be synchronized to an external clock through the SYNC input, avoiding possible problem frequencies inside a system. The speaker amplifier features a low 0.025% THD+N, high 70d B PSRR, and SNR in excess of 90d B. The headphone amplifiers feature Maxim’s patented Direct Drive...