TI reduces car audio system cost by up to 50 percent with highly-efficient Class-D audio amplifiers

The TAS5412 with single-ended inputs and TAS5422 with differential inputs provide OEMs with improved system design flexibility when combined with TI’s existing four-channel amplifier devices, the TAS5414A and TAS5424A. Now car audio system architects can optimize designs that require two or six channels by more efficiently matching the number of speakers while maintaining high levels of integration. In addition, the new TAS5412 and TAS5422 are designed to operate in car audio systems without a microcontroller, offering system-level cost savings.



The TAS5412 and TAS5422 provide superior EMC performance, a key requirement that determines whether electrical components will negatively interfere with other electronic systems within the vehicle. Both amplifiers use the same patent-pending technology from the field-proven TAS54x4A, which surpasses CISPR-25 Level 5 and many OEM-specific requirements, to ensure that high-power audio systems do not compromise vehicle operation.



In addition, the TAS5412 and TAS5422 support higher voltage and current capabilities, enabling a higher maximum output power for applications where feature densities and system configurations require reduction in heat from the audio power amplifier. The amplifiers also incorporate patented PWM designs that provide excellent power supply rejection in the harsh electrical environment common in automotive applications.