TPA6040A4 - Texas Instruments

TPA6040A4 2-W STEREO AUDIO POWER AMPLIFIER

The TPA6040A4 is a stereo audio power amplifier and DirectPath™ headphone amplifier in a thermally enhanced, space-saving, 32-pin QFN package. The speaker amplifier is capable of driving 2 W per channel continuously into 4-Ω loads at 5 V. The headphone amplifier achieves a minimum of 85 mW at 1% THD+N from a 5-V supply. A built-in internal 4-step gain contro.

Features

• Microsoft™Windows Vista™ Compliant
• Fully Differential Architecture and High PSRR Provide Excellent RF Rectification Immunity
• 2-W, 10% THD+N Into 4-Ω Speakers and 85-mW, 1% THD+N Into 16-Ω Headphones From 5-V Supply
• DirectPath™ Headphone Amplifier Eliminates Output Capacitors (1)
• Internal 4-Step Speaker Gain Control: 6, 10, 15.6, 21.6 dB and Fixed
  –1.5-V/V Headphone
• 4.75-V Low Dropout Regulator for CODEC
• Independent Shutdown Controls for Speaker, Headphone Amplifier, and Low Dropout Regulator (LDO)
• Output Short-Circuit and Thermal Protection DESCRIPTION The TPA6040A4 is a stere.