Comparing Audio Amplifiers TDA vs LM
When it comes to audio amplifiers, there are many options available in the market. Two of the most popular ones are TDA and LM. But which one is better? Let's find out!
TDA Amplifiers
TDA (standing for Triple Differential Amplifier) is a popular amplifier family for audio applications. They offer high performance, low distortion, and are available in a range of power outputs. They also have a high Power Supply Rejection Ratio (PSRR) which means they can handle variations in the input power supply.
The TDA amplifiers are classified based on their output power. For example, TDA7294 and TDA2050 are commonly used for low-frequency applications such as subwoofers. Whereas, TDA8560Q is used for high-frequency applications like car audio systems.
LM Amplifiers
LM (standing for Linear Monolithic) amplifiers are also popular in the audio industry. They are widely used in car audio systems, home theater setups, and other audio applications. LM amplifiers have a high gain, low noise, and are generally known for their excellent performance.
LM amplifiers are also classified based on their output power. For example, LM386 is commonly used as a small audio amplifier for low power applications, while LM3886 is popular for high power audio applications such as home theater setups. The LM4562 is known for its high fidelity and is commonly used in professional audio circuits.
Comparing TDA vs LM
When comparing TDA and LM amplifiers, there are a few key differences to consider:
1. Power efficiency: TDA amplifiers are more power-efficient than LM amplifiers. This means that they require less power for the same output level. TDA amplifiers also have a lower standby current, which is essential for portable devices like speakers.
2. Noise level: LM amplifiers have a lower noise level in comparison to TDA amplifiers. This means that LM amplifiers are better suited for low-power applications where the input signal is weak.
3. Distortion: While both TDA and LM amplifiers are known for producing low distortion levels, TDA amplifiers have a slightly higher Total Harmonic Distortion (THD) than LM amplifiers. This difference is not significant and should not be a deciding factor for most users.
Conclusion
In conclusion, both TDA and LM amplifiers have their advantages and disadvantages depending on your audio requirements. TDA amplifiers are more power-efficient, while LM amplifiers have a better signal-to-noise ratio. It is important to carefully evaluate your requirements before selecting an amplifier.
With that said, whichever amplifier you choose, it is essential to follow proper safety guidelines when working with electronics to prevent any mishaps.
We hope this comparison helps you choose the right amplifier for your audio application. Happy listening!
References
- "Audio Amps: TDA vs. LM (vs. AB, B, D, G…)" by Petre Tzv Petrov, Hackaday, February 18, 2016.
- "Opamp Rolling: High-performance Audio Amplifiers LM4562 vs OPA2134" by Look Mum No Computer, YouTube, October 16, 2018.