TPA6130A2RTJT

The Texas Instruments TPA6130A2RTJT is a stereo DirectPath headphone amplifier featuring an I2C control interface for digital volume adjustment. This amplifier is optimized for portable applications with a low quiescent current of 4 mA. It provides flexibility with a 64-step audio taper volume control and per-channel mutes and enables.

Key electrical characteristics include a power supply voltage range of 2.5 V to 5.5 V, a typical output power of 138 mW for stereo operation, and a high Signal-to-Noise Ratio (SNR) of 98 dB. The high Power Supply Rejection Ratio (PSRR) greater than 100 dB allows for direct battery connections without compromising audio quality. Differential inputs ensure maximum noise rejection with a CMRR of 68 dB.

The TPA6130A2RTJT supports multiple output configurations, including stereo headphone, dual mono, and single-channel BTL operation, capable of driving 300 mW into 16 Ω loads. It incorporates advanced pop and click suppression circuitry and offers high-impedance outputs when disabled. The device is available in space-saving WQFN and DSBGA packages, with ESD protection up to 8 kV HBM and IEC.

This amplifier is well-suited for applications requiring high-fidelity audio amplification in a compact form factor, such as mobile phones, tablets, wearables, and portable audio devices.