TPA6133A2 - 138mW DirectPath Headphone Amplifier with GPIO control

The TPA6133A2 is a stereo DirectPath™ headphone amplifier with GPIO control. The TPA6133A2 has minimal quiescent current consumption, with a typical I_DD of 4.2 mA, making it optimal for portable applications. The GPIO control allows the device to be put in a low power shutdown mode.

The TPA6133A2 is a high fidelity amplifier with an SNR of 93 dB. A PSRR greater than 100 dB enables direct-to-battery connections without compromising the listening experience. The output noise of 12 µVrms (typical A-weighted) provides a minimal noise background during periods of silence. Configurable differential inputs and high CMRR allow for maximum noise rejection in the noisy environment of a mobile device.

• DirectPath™ Ground-Referenced Outputs
  • Eliminates Output DC Blocking Capacitors
  • Reduces Board Area
  • Reduces Component Height and Cost
  • Full Bass Response Without Attenuation
• Power Supply Voltage Range: 2.5 V to 5.5 V
• High Power Supply Rejection Ratio
  (>100 dB PSRR)
• Differential Inputs for Maximum Noise Rejection
  (69 dB CMRR)
• High-Impedance Outputs When Disabled
• Advanced Pop and Click Suppression Circuitry
• GPIO Control for Shutdown
• 20 Pin, 4 mm × 4 mm WQFN Package