Infineon MA5332MSXUMA1: High-Performance Audio Amplifier for Professional Applications

The pursuit of pristine, powerful, and reliable audio amplification is a cornerstone of professional audio systems, from high-end studio monitors to large-scale public address (PA) installations. Addressing the rigorous demands of these applications, Infineon Technologies introduces the MA5332MSXUMA1, a highly integrated monolithic Class-D amplifier that sets a new benchmark for performance and efficiency.

At the heart of the MA5332MSXUMA1 is a sophisticated class-D amplifier architecture capable of delivering a continuous output power of 160 W per channel when configured in a stereo 2Ω setup. This immense power output is engineered to drive even the most demanding loudspeaker loads with exceptional clarity and dynamic range, making it an ideal solution for live sound reinforcement and premium audio equipment. A key to its superior performance is the remarkably low total harmonic distortion plus noise (THD+N) figure, which is typically just 0.004% at 1 kHz and 60 W into 4 Ω. This ultra-low distortion ensures that the amplified signal remains incredibly faithful to the original source, preserving every nuance and detail for a truly professional listening experience.

Beyond sheer audio fidelity, the MA5332MSXUMA1 is designed for exceptional resilience and system integration. It features a comprehensive suite of advanced protection circuits, including safeguards against over-temperature (OTP), over-current (OCP), under-voltage (UVP), and over-voltage (OVP) conditions. These integrated protections enhance system reliability, protect valuable downstream components, and ensure uninterrupted operation in challenging environments. Furthermore, the amplifier utilizes a highly flexible modulation scheme that is optimized for both single-ended and bridge-tied load (BTL) configurations, offering designers significant versatility in their system design.

Efficiency is another paramount advantage. Operating as a Class-D amplifier, the MA5332MSXUMA1 achieves peak efficiency levels exceeding 90%. This high efficiency translates directly into reduced power consumption and significantly less heat generation compared to traditional Class-AB amplifiers. Consequently, systems can be designed with smaller heatsinks and more compact form factors, reducing both the overall system size and total cost of ownership.

ICGOODFIND: The Infineon MA5332MSXUMA1 stands out as a premier power solution for the most demanding professional audio markets. Its winning combination of immense output power, benchmark-setting low distortion, robust integrated protection, and high efficiency makes it an exceptional integrated circuit (IC) for designers aiming to create best-in-class audio products for studio, live, and installed sound applications.

Keywords:

Class-D Amplifier

High Output Power

Low THD+N

Integrated Protection

High Efficiency