CXAR41321 is a differential input audio power amplifier circuit suitable for mobile phones and other portable audio devices with built-in speakers. It can provide steady output of 1.25W and 2W power for 8Ω load and 4Ω load, and its total harmonic distortion and noise shall not exceed 1% under the condition of 5V power supply. CXAR41321 the bridge load structure greatly reduces the number of external components while providing high-quality audio power amplification, eliminating the need for external output coupling capacitors and bootstrap capacitors. CXAR41321 built-in standby circuit can make the circuit work in a standby state with low power consumption. When the circuit is in standby mode, the standby current cannot exceed 100nA. CXAR41321 has built-in noise cancellation circuit, which can eliminate the clicking sound or poop sound during chip startup and shutdown. The gain can also be adjusted by an external resistor.
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[ CXAR41321 ]"
