Maxim announces industry’s smallest Class D amplifier

The MAX98314 fits in a 1x1mm solution size and, according to the mixed signal/analogue semiconductor specialist, saves at least 25% board space. The part is suitable for applications where pcb area is critical, such as mobile phones, portable audio applications, notebooks, mp3 players and netbooks. The device's integrated capacitors are designed to provide better voltage independence and matching than standard Class D amplifiers with external input capacitors. Kristy Lypen, director of business management for Maxim, claims the Class D amplifier improves the system power supply rejection ration and enhances performance at low frequencies. "Maxim has taken advantage of its truly innovative 3D process, opening the doors to countless possibilities for future solutions that enhance mobile devices," said Lypen. "There is no better or smaller amplifier than the MAX98314 for your portable design needs." The 3.2W amplifier provides Class AB audio performance with Class D efficiency. Its higher efficiency and low quiescent current are designed to extend battery life and make it a low power solution. Maxim says it offers improved sound quality because the low noise floor and click and pop suppression techniques ensure that there is no audible noise - unless there is supposed to be.