Overview
The TPA321DGNR is a high-performance audio amplifier integrated circuit (IC) manufactured by Texas Instruments. This product is designed for applications requiring high-quality audio amplification, such as portable audio devices, home entertainment systems, and automotive audio systems. The TPA321DGNR is a Class-D audio amplifier, known for its efficiency and compact design, making it ideal for space-constrained applications. Its market positioning targets engineers and designers seeking reliable, high-efficiency audio solutions with minimal power consumption. The unique selling points of the TPA321DGNR include its low distortion, high signal-to-noise ratio (SNR), and thermal protection features, which ensure robust performance in various environments.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Supply Voltage | 2.5 to 5.5 | V | Wide operating range |
| Output Power | 1.1 | W | @ 5V, 8Ω load |
| THD+N | 0.1 | % | Low distortion |
| SNR | 95 | dB | High signal-to-noise ratio |
| Operating Temperature | -40 to 85 | °C | Wide temperature range |
| Package | MSOP-PowerPAD-8 | - | Compact design |
| Efficiency | 90 | % | High efficiency |
| Shutdown Current | 0.01 | µA | Low power consumption |
Key Features
- High Efficiency: Class-D architecture ensures minimal power loss, making it suitable for battery-powered devices.
- Low Distortion: Total harmonic distortion plus noise (THD+N) of 0.1% ensures high-quality audio output.
- Thermal Protection: Built-in thermal shutdown feature prevents overheating, enhancing reliability.
- Compact Design: MSOP-PowerPAD-8 package allows for integration into space-constrained applications.
- Wide Voltage Range: Operates from 2.5V to 5.5V, providing flexibility in various power supply scenarios.
Applications
The TPA321DGNR is widely used in applications requiring efficient and high-quality audio amplification. Typical use cases include:
- Portable Audio Devices: Its low power consumption and compact design make it ideal for smartphones, tablets, and portable speakers.
- Home Entertainment Systems: High efficiency and low distortion ensure excellent audio performance in soundbars and home theater systems.
- Automotive Audio Systems: The wide operating temperature range and thermal protection features make it suitable for automotive environments.
- Gaming Consoles: Provides clear and powerful audio output for gaming applications.
Q & A
1. What is the operating voltage range of the TPA321DGNR?
The TPA321DGNR operates within a voltage range of 2.5V to 5.5V.
2. What is the output power of the TPA321DGNR?
The output power is 1.1W at 5V with an 8Ω load.
3. What is the THD+N of the TPA321DGNR?
The total harmonic distortion plus noise (THD+N) is 0.1%.
4. What is the signal-to-noise ratio (SNR) of the TPA321DGNR?
The SNR is 95dB, ensuring high-quality audio output.
5. What is the operating temperature range of the TPA321DGNR?
The operating temperature range is -40°C to 85°C.
6. What package does the TPA321DGNR use?
The TPA321DGNR is available in an MSOP-PowerPAD-8 package.
7. What is the efficiency of the TPA321DGNR?
The efficiency is up to 90%, making it highly efficient for power-sensitive applications.
8. Does the TPA321DGNR have thermal protection?
Yes, it includes built-in thermal shutdown protection.
9. What is the shutdown current of the TPA321DGNR?
The shutdown current is 0.01µA, ensuring minimal power consumption when not in use.
10. What are the typical applications of the TPA321DGNR?
Typical applications include portable audio devices, home entertainment systems, automotive audio systems, and gaming consoles.
