TPA6130A2

具有 I2C 音量控制的 138mW DirectPath™ 立体声耳机放大器 TPA6130

The is a stereo DirectPath™ headphone amplifier with I2C digital volume control. The TPA6130A2 has minimal quiescent current consumption, with a typical IDD of 4 mA, making it optimal for portable applications. The I2C control allows maximum flexibility with a 64 step audio taper volume control, channel independent enables and mutes, and the ability to configure the outputs into stereo, dual mono, or a single receiver speaker BTL amplifier that drives 300 mW of power into 16 Ω loads.

The TPA6130A2 is a high fidelity amplifier with an SNR of 98 dB. A PSRR greater than 100 dB enables direct-to-battery connections without compromising the listening experience. The output noise of 9 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.

TPA6130A2 packaging includes a 2 by 2 mm chip-scale package, and a 4 by 4 mm QFN package.

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DirectPath™ Ground-Referenced Outputs

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Eliminates Output DC Blocking Capacitors

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Reduces Board Area

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Reduces Component Height and Cost

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Full Bass Response Without Attenuation

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Power Supply Voltage Range: 2.5 V to 5.5 V

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64 Step Audio Taper Volume Control

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High Power Supply Rejection Ratio

>100 dB PSRR

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Differential Inputs for Maximum Noise Rejection

68 dB CMRR

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High-Impedance Outputs When Disabled

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Advanced Pop and Click Suppression Circuitry

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Digital I2C Bus Control

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Per Channel Mute and Enable

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Software Shutdown

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Multi-Mode Support: Stereo HP, Dual Mono

HP, and Single-Channel BTL Operation

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Amplifier Status

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Space Saving Packages

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20 Pin, 4 mm × 4 mm QFN

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16 ball, 2 mm × 2 mm DSBGA

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ESD Protection of 8 kV HBM and IEC Contact