The LM48861TMBD from Texas Instruments is a high-performance, ultra-low power stereo audio amplifier designed to deliver exceptional audio quality for portable applications. This device is part of Texas Instruments' Boomer® series of audio amplifiers, which are renowned for their efficiency and sound fidelity.
Key Features
- Output Power: The LM48861TMBD is capable of delivering 2.1W of continuous average power to a 4Ω BTL load with less than 1% THD+N, ensuring loud and clear sound output.
- Efficiency: With an efficiency of 90%, this audio amplifier minimizes power consumption, making it ideal for battery-powered devices.
- Signal-to-Noise Ratio (SNR): It boasts an impressive signal-to-noise ratio, which means audio is reproduced with high clarity and minimal background noise.
- Pop & Click Noise Reduction: The device includes a built-in pop and click noise reduction circuitry, reducing audible transients on startup and shutdown.
- Thermal Protection: The LM48861TMBD has an internal thermal shutdown protection mechanism that prevents damage from overheating.
Applications
This audio amplifier is suitable for a wide range of portable applications, including:
- Mobile Phones
- Portable Media Players
- Handheld Gaming Devices
- Notebook and Ultrabook Computers
- Tablets
Technical Specifications
| Parameter |
Value |
| Output Power (4Ω load) |
2.1W (typ) |
| THD+N |
<1% |
| SNR |
90dB (typ) |
| Efficiency |
90% |
| Supply Voltage |
2.2V to 5.5V |
Overall, the LM48861TMBD is a robust audio solution that combines high-quality output with low power consumption, making it an excellent choice for designers looking to enhance the audio experience in their portable electronic products.