The LM4873IBL by Texas Instruments is a high-quality audio amplifier that offers a blend of efficiency and performance for a wide range of audio applications. This integrated circuit is designed to deliver a superior audio experience with its dual 2.1W audio amplifiers at a 5V supply. It is an ideal choice for portable devices due to its low voltage operation and minimal power consumption.
Key Features
- Output Power: The LM4873IBL can provide up to 2.1W per channel into 4 ohms with less than 1.0% THD+N, ensuring loud and clear sound output.
- Boomer Audio Power Amplifiers: As part of the Boomer series, this product is specifically designed to provide high-quality audio while consuming minimal power, making it perfect for portable applications.
- Efficiency: The device includes a shutdown mode feature, allowing users to significantly reduce the power consumption when the amplifier is not in use.
- Micro-Power Shutdown Mode: The shutdown current is an ultra-low 0.7µA, which extends the battery life in portable systems.
- External Gain Configuration: Users can configure the gain externally, allowing for design flexibility and the ability to tailor the audio output to specific requirements.
Applications
The LM4873IBL is versatile and can be used in a variety of audio applications. These include:
- Portable and desktop computers
- Low-voltage audio systems
- Portable media players
- PDAs and mobile phones
Technical Specifications
| Parameter |
Value |
| Supply Voltage (VDD) |
2.0V - 5.5V |
| Output Power |
2.1W (Typical) into 4Ω |
| THD+N |
< 1.0% at 1kHz |
| Shutdown Current |
0.7µA (Typical) |
| Package |
Micro SMD |
With its robust set of features and specifications, the LM4873IBL from Texas Instruments is a strong contender for any design requiring compact, efficient, and high-quality audio amplification.