The LM4811LDBD is a highly integrated audio amplifier solution by Texas Instruments, designed to meet the demanding requirements of portable and compact audio systems. This dual audio power amplifier is capable of delivering high-quality sound while maintaining power efficiency, making it an ideal choice for battery-powered applications such as mobile phones, laptops, and personal media players.
Key Features
- Dual Amplification: This device features two amplifiers capable of driving stereo speakers with excellent sound quality.
- Power Efficiency: The LM4811LDBD operates on a low voltage supply, ranging from 2.2V to 5.5V, which helps in conserving battery life in portable devices.
- Output Power: It can deliver an output power of 105mW per channel into a 16Ω load with less than 1.0% THD+N, ensuring loud and clear audio performance.
- Boomer Audio Power: As part of TI's Boomer® series, it is designed to provide high-quality audio amplification with minimal external components.
- Shutdown Mode: The LM4811LDBD includes a shutdown mode feature, which significantly reduces the power consumption when the amplifier is not in use.
- Surface-Mount Package: Available in a space-saving MSOP package, it is suitable for compact PCB layouts.
Applications
- Mobile Phones
- Portable Media Players
- Laptop and Notebook Computers
- Portable Gaming Devices
Technical Specifications
| Parameter |
Value |
| Supply Voltage (VDD) |
2.2V to 5.5V |
| Output Power |
105mW (16Ω Load) |
| Total Harmonic Distortion (THD+N) |
< 1.0% at 1kHz |
| Package Type |
MSOP |
The LM4811LDBD by Texas Instruments stands out with its combination of power efficiency, high-quality audio output, and compact design, making it a top choice for designers looking to enhance the audio experience in their portable electronic devices.