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138mW DirectPath Headphone Amplifier with GPIO control


Package | PIN: RTJ | 20
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $1.14
10-24 $1.02
25-99 $0.95
100-249 $0.82
250-499 $0.76
500-749 $0.64
750-999 $0.52
1000+ $0.48


  • 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

Texas Instruments  TPA6133A2RTJR

The TPA6133A2 is a stereo DirectPath™ headphone amplifier with GPIO control. The TPA6133A2 has minimal quiescent current consumption, with a typical IDD 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.