MAX9765

19-2862; Rev 1; 2/05 750mW Audio Amplifiers with Headphone Amp, Microphone Preamp, and Input Mux General Description www.datasheet4u.com Features ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ ♦ 750mW BTL Stereo Speaker Amplifier 65mW Stereo Headphone Amplifier 2.7V to 5.5V Single-Supply Operation Patented Click-and-Pop Suppression Low 0.003% THD+N Low Quiescent Current: 13mA Low-Power Shutdown Mode: 5µA MUTE Function Headphone Sense Input Stereo 2:1 Input Multiplexer Optional 2-Wire, I2C-Compatible, or Parallel Interface ♦ Small 32-Pin Thin QFN (5mm ✕ 5mm ✕ 0.8mm) Package MAX9765/MAX9766/MAX9767 The MAX9765/MAX9766/MAX9767 family combines 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 95dB 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 s...