CXAR41289 is a low EMI, anti-clipping distortion, dual channel filter-free Class D audio power amplifier. Under the conditions of 6.5V power supply, 10% THD + N and 4Ω load, it outputs 4.7W × 2 power, maintaining high efficiency and providing class AB amplifier performance in various audio terminal applications. The biggest feature of the CXAR41289 is the anti-clipping distortion (ACF) output control function, which can detect and suppress the clipping distortion (sound breaking) of the output signal caused by the excessive amplitude of the input music and voice signals, and can also adaptively prevent the output clipping caused by the drop of power supply voltage in battery applications, significantly improve the sound quality, create very comfortable listening enjoyment, and protect the speaker from overload damage. At the same time the chip has a ACF-Off mode. The CXAR41289 has a unique electromagnetic radiation (EMI) suppression technology and excellent full bandwidth low radiation performance, radiation levels without any auxiliary.
The help design is still far below the FCC Part15 Class B standard, which not only avoids interference with other sensitive circuits but also reduces the difficulty of system design.
CXAR41289 integrated filter-free digital modulation technology, it can directly drive the speaker, and minimize the distortion and noise of the pulse output signal. The output does not require a filter network, and minimal external components save system space and cost, making it ideal for portable applications.
In addition, the CXAR41289 built-in shutdown function to minimize the standby current, but also integrated output over-current protection, on-chip over-temperature protection and power supply under-voltage abnormal protection and other functions.
-
[ CXAR41289 ]"
