CXAR41301 is a stereo Class D audio power amplifier with built-in adaptive boosting. When the power supply is boosted to VPOUT = 8.3V by lithium battery, it can continuously output 2 × 6.8W power (4Ω load) under THD + N = 1% and 1kHz signal conditions. In addition, it also supports Class AB mode. CXAR41301 built-in class G boost, the maximum boost value can be set arbitrarily to meet different output power requirements. This step-up does not step up when the music signal is small, and only works when the power is large. It can greatly improve system efficiency and extend battery life. The CXAR41301 has an arbitrarily configurable clipping (Limiter) function. After the limiter function is turned on, even if the input signal is large, the music output can be limited to the specified power and THD + N to meet the needs of different sound quality experiences and protection speakers. The CXAR41301 also has an automatic temperature limit control (TFB) function. When the temperature in the chip is high due to high power output, high ambient temperature, low efficiency in Class AB mode, etc., the chip can automatically reduce the system gain, prevent the chip from entering the over-temperature shutdown protection mode, and significantly improve the peak power of music on the premise of ensuring the quality of music. In addition, the CXAR41301's internal integrated filter-free modulation technology can directly drive the speaker. The built-in shutdown function minimizes the standby current. It also integrates functions such as output over-current protection, on-chip over-temperature protection and power supply under-voltage abnormal protection.
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[ CXAR41301 ]"
