National Semiconductor LM48520TL Audio Amplifier Function: Speaker Audio Amplifier Output Configuration: 2-Channel Stereo Dual Supply Voltage (max): 5/5.5V Dual Supply Voltage (min): 2.4/2.7/3V Dual Supply Voltage (typ): 3/5V Mounting: Surface Mount Operating Temp Range: -40C to 85C Operating Temperature Classification: Industrial Operational Class: Class-D Output Power (typ): 1.3x2@8OhmW Pin Count: 25 Power Supply Rejection Ratio: 82dB Power Supply Requirement: Triple Rail/rail I/o Type: No Single Supply Voltage (max): Not RequiredV Single Supply Voltage (min): Not RequiredV Single Supply Voltage (typ): Not RequiredV Total Harmonic Distortion: 0.04@8Ohm@500mW%