"XZ2038 is a 3.5W, BTL output two-channel class AB audio power amplifier in 6V operating voltage, 4Ω 
 Load conditions, to provide THD <10%, average output power of 3.5W. XZ2038 requires minimal external components, 
 Can provide high-fidelity audio output, greatly simplify audio system design. External control, low-power shutdown mode, and internal thermal shutdown protection mechanism, and has a tick and 
 Burst suppression and low distortion characteristics. "