The SSM2932 is a stereo headphone amplifier capable of delivering 50mW of continuous output power per channel into 16ohm single-ended loads at the 1% THD + N threshold. The stereo headphone drivers are high efficiency, true ground-referenced Class-G technology. The SSM2932 incorporates a gain control pin that selects a gain of 0dB or 6dB. The ground-referenced output scheme eliminates the need for large dc blocking capacitors, reducing system cost and board area. The Class-G amplifier is fine-tuned to maximize battery life, a critical task in portable applications. The device maximizes battery life by modulating the amplifier power supply rail to match the output demand without consuming excessive supply current, thus reducing power dissipation during typical audio playback.