138-mW, stereo, analog input headphone amplifier with I2C control interface


Product details


Output power (W) 0.138 Analog supply (Min) (V) 2.5 Analog supply (Max) (V) 5.5 PSRR (dB) 109 Rating Catalog Operating temperature range (C) -40 to 85 Headphone channels Stereo Volume control Yes Shutdown current (ISD) (uA) 0.4 Architecture Class-AB Iq per channel (Typ) (mA) 2 open-in-new Find other Headphone amps

Package | Pins | Size

DSBGA (YZH) 16 5 mm² 1.974 x 1.974 WQFN (RTJ) 20 16 mm² 4 x 4 WQFN (RTJ) 20 16 mm² 4.0 x 4.0 open-in-new Find other Headphone amps


  • 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
  • 64 Step Audio Taper Volume Control
  • High Power Supply Rejection Ratio
    (>100 dB PSRR)
  • Differential Inputs for Maximum Noise Rejection
    (68 dB CMRR)
  • High-Impedance Outputs When Disabled
  • Advanced Pop and Click Suppression Circuitry
  • Digital I2C Bus Control
    • Per Channel Mute and Enable
    • Software Shutdown
    • Multi-Mode Support: Stereo HP, Dual Mono
      HP, and Single-Channel BTL Operation
    • Amplifier Status
  • Space Saving Packages
    • 20 Pin, 4 mm × 4 mm QFN
    • 16 ball, 2 mm × 2 mm DSBGA
  • ESD Protection of 8 kV HBM and IEC Contact
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The TPA6130A2 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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Technical documentation

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Type Title Date
* Data sheet TPA6130A2 138-mW DIRECTPATH™ Stereo Headphone Amplifier with I2C Volume Control datasheet (Rev. F) Apr. 04, 2015
Application note Guidelines for Measuring Audio Power Amplifier Performance (Rev. A) Aug. 26, 2019
Application note AN-1849 An Audio Amplifier Power Supply Design (Rev. C) Jun. 27, 2019
User guide TPA6130A2EVM - User Guide (Rev. A) Sep. 22, 2014
More literature Журнал по применению аналоговых компонентов 2кв. 2010 Aug. 08, 2011
Application note 2Q 2010 Issue Analog Applications Journal May 06, 2010
Application note Precautions for connecting APA outputs to other devices May 06, 2010

Design & development

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Hardware development

document-generic User guide

The TPA6130A2EVM allows the engineer to evaluate the TPA6130A2, a stereo DirectPath™ (capacitor-free) headphone amplifier with I²C digital volume control. The TPA6130A2 has minimal quiescent current consumption, a flexible, 64-step, audio tapered volume control and channel independent (...)

  • DirectPath™ Ground-Referenced Outputs
  • Power Supply Voltage Range: 2.5 V to 5.5 V
  • 64 Step Audio Taper Volume Control
  • High Power Supply Rejection Ratio
  • Differential Inputs for Maximum Noise Rejection
  • Advanced Pop and Click Suppression Circuitry
  • High-Impedance Outputs When Disabled
  • Tiny 2x2 mm 16-WCSP (EVM) and (...)

Software development

Linux Driver for TPA6130A2
TPA6130A2SW-LINUX The Linux driver supports the TPA61x0A2 family of Stereo Headphone Amplifiers. The Linux driver supports communication through the I2C bus and interfaces with the Linux DAPM (Dynamic Audio Power Management for Portable Devices) class.
Linux Mainline Status

Available in Linux Main line: Yes
Available (...)

SLOC235.ZIP (126933 KB)

Design tools & simulation

PSpice® for TI design and simulation tool
PSPICE-FOR-TI — PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
  • Leverages Cadence PSpice Technology
  • Preinstalled library with a suite of digital models to enable worst-case timing analysis
  • Dynamic updates ensure you have access to most current device models
  • Optimized for simulation speed without loss of accuracy
  • Supports simultaneous analysis of multiple products
  • (...)

CAD/CAE symbols

Package Pins Download
DSBGA (YZH) 16 View options
QFN (RTJ) 20 View options

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