Overview
The TPA6130A2RTJRG4 is a high-performance, 138-mW DIRECTPATH™ stereo headphone amplifier produced by Texas Instruments. This device is designed with I2C digital volume control, offering advanced features such as minimal quiescent current consumption and high power supply rejection ratio (PSRR). It is particularly suited for portable applications due to its low power consumption and compact packaging. The amplifier supports various operational modes, including stereo, dual mono, and single-channel BTL operation, making it versatile for different audio requirements.
Key Specifications
| Parameter | Min | Typ | Max | Unit |
|---|---|---|---|---|
| Supply Voltage (VDD) | 2.5 | 5.5 | V | |
| Input Voltage (RIGHTINx, LEFTINx) | -2.5 | 3.6 | V | |
| Operating Free-Air Temperature Range | -40 | 85 | °C | |
| Operating Junction Temperature Range | -40 | 150 | °C | |
| Output Continuous Total Power Dissipation | See Thermal Information table | |||
| Minimum Load Impedance | 12.8 | Ω | ||
| Power Supply Rejection Ratio (PSRR) | -109 | -90 | dB | |
| Common Mode Rejection Ratio (CMRR) | -68 | dB | ||
| Signal-to-Noise Ratio (SNR) | 98 | dB | ||
| Noise Output Voltage (A-weighted) | 9 | μVrms | ||
| Charge Pump Switching Frequency | 300 | 400 | 500 | kHz |
Key Features
- DirectPath™ Ground-Referenced Outputs: Eliminates the need for output DC blocking capacitors, reducing board area and component height.
- I2C Digital Volume Control: 64-step audio taper volume control with channel-independent enables and mutes.
- High Power Supply Rejection Ratio (PSRR): Greater than 100 dB, allowing direct-to-battery connections without compromising audio quality.
- Differential Inputs: Maximum noise rejection with high CMRR (68 dB).
- Advanced Pop and Click Suppression Circuitry: Minimizes noise during power-up and power-down.
- Multi-Mode Support: Stereo headphone, dual mono headphone, and single-channel BTL operation.
- Low Quiescent Current: Typical IDD of 4 mA, making it optimal for portable applications.
- Compact Packaging: Available in 2x2 mm DSBGA and 4x4 mm QFN packages.
- ESD Protection: 8 kV HBM and IEC contact protection.
Applications
- Mobile Phones: Ideal for integrating high-quality audio in mobile devices.
- Portable Media Players: Enhances audio performance in portable media players.
- Notebook Computers: Suitable for notebook computers requiring high-fidelity audio.
- High Fidelity Applications: Used in various high-fidelity audio systems where quality and minimal noise are crucial.
Q & A
- What is the typical quiescent current consumption of the TPA6130A2?
The typical quiescent current consumption is 4 mA. - What is the power supply voltage range for the TPA6130A2?
The power supply voltage range is from 2.5 V to 5.5 V. - What is the maximum output power of the TPA6130A2 into a 16 Ω load?
The TPA6130A2 can drive up to 300 mW of power into a 16 Ω load. - Does the TPA6130A2 support I2C control?
Yes, it supports I2C digital volume control with a 64-step audio taper. - What are the available packaging options for the TPA6130A2?
The TPA6130A2 is available in 2x2 mm DSBGA and 4x4 mm QFN packages. - What is the signal-to-noise ratio (SNR) of the TPA6130A2?
The SNR is 98 dB. - Does the TPA6130A2 have built-in ESD protection?
Yes, it has 8 kV HBM and IEC contact ESD protection. - What are the typical noise output and PSRR values of the TPA6130A2?
The typical noise output is 9 μVrms (A-weighted), and the PSRR is greater than 100 dB. - Can the TPA6130A2 operate in different modes?
Yes, it supports stereo headphone, dual mono headphone, and single-channel BTL operation. - What is the charge pump switching frequency range of the TPA6130A2?
The charge pump switching frequency range is from 300 kHz to 500 kHz.
