TPA6139A2 - Texas Instruments

TPA6139A2 25-mW Headphone Amplifier

The TPA6139A2 is a 25-mW, pop-free stereo headphone driver designed to reduce component count, board space and cost. It is ideal for singlesupply electronics where size and cost are critical design parameters. The TPA6139A2 device does not require a power supply greater than 3.3 V to generate its 25 mW, nor does it require a split rail power supply. The TPA6.

Features

•1 DirectPath™
  – Eliminates Pops and Clicks
  – Eliminates Output DC-Blocking Capacitors
  – 3-V to 3.6-V Supply Voltage
• Low Noise and THD
  – SNR > 105 dB at
  –1x Gain
  – Typical Vn < 15 μVms 20 to 20 kHz at
  –1x Gain
  – THD+N < 0.003% at 10-kΩ Load and
  –1x Gain
• 25 mW into 32-Ω Load
• 2-Vrms Output Voltage into 600-Ω Load
• Single-Ended Input and Output
• Programmable Gain Select Reduces Component Count
  – 13x Gain Values
• Active Mute With More Than 80-dB Attenuation
• Short-Circuit and Thermal Protection
• ±8-kV HBM ESD Protected Outputs 2 Applications
• PDP and LCD TVs
• Blu-ray Discs™, DVD Playe.