TPA6140A2 - Texas Instruments

TPA6140A2 STEREO HEADPHONE AMPLIFIER

The TPA6140A2 (also known as TPA6140) is a Class-G DirectPath™ stereo headphone amplifier with built-in I2C volume control. Class-G technology maximizes battery life by adjusting the voltage supplies of the headphone amplifier based on the audio signal level. At low level audio signals, the internal supply voltage is reduced to minimize power dissipation. Di.

Features

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•2 TI Class-G Technology Significantly Prolongs Battery Life and Music Playback Time
  – 0.6 mA / Ch Quiescent Current
  – 50% to 80% Lower Quiescent Current than Ground-Referenced Class-AB Headphone Amplifiers
• DirectPathTM Technology Eliminates Large Output DC-Blocking Capacitors
  – Outputs Biased at 0 V
  – Improves Low Frequency Audio Fidelity
• I2C Volume Control
  –
  –59 dB to +4 dB Gain
• Active Click and Pop Suppression
• Fully Differential Inputs Reduce System Noise
  – Also Configurable as Single-Ended Inputs
• SGND Pin Eliminates Ground Loop Noise
• Wide Power Supply Range: 2.5 V to 5.5 V
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