Overview
The TPA2013D1RGPR, produced by Texas Instruments, is a high-efficiency Class-D audio power amplifier integrated with a boost converter. This device is designed to drive up to 2.7 watts of power into a 4-Ω speaker with a total harmonic distortion plus noise (THD+N) of 10%. It operates over a wide voltage range from 1.8 V to 5.5 V, making it suitable for various portable electronic devices. The integrated boost converter generates the necessary voltage rail for the Class-D amplifier, ensuring consistent loudness regardless of the battery voltage. This feature significantly prolongs battery life and enhances overall audio quality.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Output Power (into 4-Ω load) | 2.7 | W |
| Output Power (into 8-Ω load) | 2.2 | W |
| Supply Voltage Range | 1.8 to 5.5 | V |
| Efficiency (typical) | 85% | % |
| Gain Settings | 2 V/V, 6 V/V, 10 V/V | V/V |
| Operating Temperature Range | -40 to 85 | °C |
| Package Types | 20-pin VQFN, 16-ball DSBGA | - |
| Thermal Shutdown Threshold | 150 | °C |
| Power Supply Rejection Ratio (PSRR) | -95 | dB |
Key Features
- High-efficiency integrated boost converter with over 90% efficiency.
- Differential inputs to reduce RF common noise.
- Built-in low-pass filter to decrease RF and out-of-band noise sensitivity.
- Synchronized boost and Class-D switching frequencies to eliminate beat frequencies.
- Thermal and short-circuit protection.
- Independent shutdown for boost converter and Class-D amplifier.
- Three selectable gain settings: 2 V/V, 6 V/V, and 10 V/V.
- Available in 20-pin VQFN and 16-ball DSBGA packages.
Applications
- Cell phones
- PDA (Personal Digital Assistants)
- GPS devices
- Portable electronics
Q & A
- What is the maximum output power of the TPA2013D1 into a 4-Ω load?
The TPA2013D1 can deliver up to 2.7 watts of power into a 4-Ω load with 10% THD+N.
- What is the operating voltage range of the TPA2013D1?
The device operates from 1.8 V to 5.5 V.
- What are the gain settings available for the TPA2013D1?
The TPA2013D1 has three selectable gain settings: 2 V/V, 6 V/V, and 10 V/V.
- Does the TPA2013D1 have thermal protection?
- What types of packages are available for the TPA2013D1?
The device is available in 20-pin VQFN and 16-ball DSBGA packages.
- How does the integrated boost converter benefit the TPA2013D1?
The integrated boost converter generates the necessary voltage rail for the Class-D amplifier, ensuring consistent loudness and prolonging battery life.
- What is the typical efficiency of the TPA2013D1?
The typical efficiency of the TPA2013D1 is 85%.
- Does the TPA2013D1 have independent shutdown for the boost converter and Class-D amplifier?
- What is the purpose of the built-in low-pass filter in the TPA2013D1?
The built-in low-pass filter improves RF rejection and reduces out-of-band noise, increasing the signal-to-noise ratio (SNR).
- How does the synchronization of boost and Class-D switching frequencies benefit the TPA2013D1?
The synchronization eliminates beat frequencies, improving audio quality.
