Key features that matter on the bench
The part includes depop circuitry that suppresses power-up and power-down clicks — a practical concern when the amplifier shares a supply with a processor that may cycle during firmware updates. Differential inputs reject common-mode noise picked up on long PCB traces or ribbon cables. Short-circuit and thermal protection let the output survive a momentary short to ground without latching up or cooking the die. The shutdown pin allows the amplifier to be disabled, dropping quiescent current to near zero for battery conservation.