TPA6133A2

Product Folder Sample & Buy Technical Documents Tools & Software Support & Community TPA6133A2 SLOS821B – JUNE 2013 – REVISED SEPTEMBER 2014 TPA6133A2 138-mW DirectPath™ Stereo Headphone Amplifier 1 Features 1 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 x 4 mm WQFN Package 2 Applications Mobile Phones Audio Headsets Notebook Computers High Fidelity Applications 3 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 ...