Infineon Introduces New Ultra-Efficient 2x 37W MERUS Multilevel Switching Audio Amplifiers

Infineon Technologies announced a new family of 2x 37W audio amplifiers featuring the second generation of MERUS multilevel switching amplifier technology. Optimized for low power and battery-powered applications, the new devices are the MA2304DNS with an integrated and fully-configurable digital signal processor (DSP), and the MA2304PNS with audio limiter and volume control features. Both are now the most efficient in the Infineon MERUS family, with an idle power mode at least five times lower than traditional class D audio amplifiers.

Texas Instruments (TI) introduced the first 2.1-MHz Class-D four-channel audio amplifier specifically designed for automotive applications. Supporting high-resolution 96-kHz digital input, the compact TAS6424-Q1 enables high-fidelity audio with low distortion in automotive infotainment systems. This impressive small footprint device combines low voltage and low noise, while providing lots of software settings, offering manufacturers more freedom to tailor their designs.

STMicroelectronics announced its second-generation digital audio amplifiers with internal 24-bit DAC conversion, bringing increased performance in comparison to its original products introduced in 2012. The new FDA801 and FDA801B 4-channel class-D components simplify system design and lower cost for car-radio suppliers, allowing for more than 40% power savings compared to standard class-D amplifiers.