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MAX98309：Mono 1.4W Class AB Audio Amplifiers

Delivers Low Quiescent Current and Excellent SNR

The MAX98309/MAX98310 mono 1.4W Class AB audio amplifiers offer low quiescent current while maintaining excellent SNR and low 0.008% THD+N. These ICs feature excellent 90dB PSRR and state of the art click-and-pop suppression. The ICs are offered with an internally fixed 0dB, 3dB, 6dB, and 9dB gain (MAX98310) or an externally set gain (MAX98309) through external resistors. The MAX98309 feature a 10ms or 100ms pin-selectable turn-on time, while the MAX98310 has a preset 5ms turn-on time. The MAX98309/MAX98310 are available in a (1.0mm x 1.0mm) 9-bump, 0.3mm pitch WLP, and are specified over the extended -40°C to +85°C temperature range.

Key Features Enhances System Performance Differential Input Improves Noise Immunity Industry-Leading Click-and-Pop Suppression High 90dB PSRR (fIN = 217Hz) Smaller Solution Size 1mm x 1mm WLP Footprint Extends Battery Life Low Quiescent Current Delivers Robust System Design Thermal Overload Protection Short-Circuit Protection 1.2mA Supply Current (VDD = 3.7V) 750mW into 8Ω (VDD = 3.7V) 2.5V to 5.5V Supply Operation Pin-Selectable, Internally-Fixed Gain (MAX98310) 1.8V Logic-Compatible Active-Low SHDN Input

MAX98309, MAX98310: Simplified Block Diagram Applications/Uses Cell Phones/Smartphones Digital Cameras e-Readers GPS Portable Media Players Tablets

DataSheet

Parametrics

Design kits & evaluation modules

• MAX98309EVKIT

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