MAX9767 Datasheet | Maxim Integrated

19-2862; Rev 1; 2/05 750m W Audio Amplifiers with Headphone Amp, Microphone Preamp, and Input Mux General Description .. Features - - - - - - - - - - - 750m W BTL Stereo Speaker Amplifier 65m W Stereo Headphone Amplifier 2.7V to 5.5V Single-Supply Operation Patented Click-and-Pop Suppression Low 0.003% THD+N Low Quiescent Current: 13m A Low-Power Shutdown Mode: 5µA MUTE Function Headphone Sense Input Stereo 2:1 Input Multiplexer Optional 2-Wire, I2C-patible, or Parallel Interface - Small 32-Pin Thin QFN (5mm ✕ 5mm ✕ 0.8mm) Package MAX9765/MAX9766/MAX9767 The MAX9765/MAX9766/MAX9767 family bines speaker, headphone, and microphone amplifiers, all in a small thin QFN package. The MAX9765 is targeted at stereo speaker playback applications and includes a stereo bridge-tied load (BTL) speaker amp, stereo headphone amp, single-ended output mic amp, input MUX, and I 2C control. The MAX9766 is targeted at mono speaker playback applications and includes a mono BTL speaker amp, stereo headphone amp, differential output mic amp, input MUX, and I2C control. The MAX9767 is targeted at applications that do not require a headphone amp and includes a stereo BTL speaker amp, differential output mic amp, and parallel control. These devices operate from a single 2.7V to 5.5V supply. A high 95d B PSRR allows these devices to operate from noisy supplies without additional power conditioning. An ultra-low 0.003% THD+N ensures clean, low distortion amplification of the audio signal. Patented click-and-pop suppression eliminates audible transients on power and shutdown cycles. In speaker mode, the amplifiers can deliver up to 750m W of continuous average power into a 4Ω load. In headphone mode, the amplifier can deliver up to 65m W of continuous average power into a 16Ω load. The gain of the amplifiers is externally set, allowing maximum flexibility in optimizing output levels for a given load. The MAX9765/MAX9766 also feature a 2:1 input multiplexer, allowing...