TPA6133A2 138mW DirectPath Headphone Amplifier with GPIO control | TI.com

TPA6133A2 (ACTIVE) 138mW DirectPath Headphone Amplifier with GPIO control

 

Description

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.

Features

  • 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

Parametrics

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Part number Order Output power (W) Analog supply (Min) (V) Analog supply (Max) (V) PSRR (dB) Rating Operating temperature range (C) Headphone channels Volume control Shutdown current (ISD) (uA) Architecture Iq per channel (Typ) (mA)
TPA6133A2 Order now 0.138     2.5     5.5     109     Catalog     -40 to 85     Stereo     No     0.08     Class-AB     4.2    
TPA6130A2 Order now 0.138     2.5     5.5     109     Catalog     -40 to 85     Stereo     Yes     0.4     Class-AB     2    
TPA6132A2 Order now 0.025     2.3     5.5     100     Catalog     -40 to 85     Stereo     No     0.7     Class-AB     1.05    
TPA6136A2 Order now 0.025     5.5     2.3     100     Catalog     -40 to 85     Stereo     No     0.7     Class-AB     1.05    
TPA6138A2 Order now 0.25     3.6     3.6     80     Catalog     -40 to 85     Stereo     No     1     Class-AB     14    
TPA6140A2 Order now 0.025     2.5     5.5     105     Catalog     -40 to 85     Stereo     Yes     1     Class-G     0.6    
TPA6166A2 Order now 0.03     1.7     1.9     92     Catalog     -40 to 85     Stereo     Yes     1     Class-G     1.2