LV49152V-TLM-E

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LV49152V-TLM-E Application Field and Working Principle

Linear amplifiers are commonly used in audio systems to amplify audio signals. The LV49152V-TLM-E is a low voltage, low power stereo audio amplifier which is popularly used in various audio applications. In this article, we will discuss the specific application field and working principle of this device.

Application Field

The LV49152V-TLM-E is a dual channel audio amplifier often used to boost audio signals in portable devices such as mobile phones, tablets, and digital audio players. It is also sometimes used in home audio amplifiers, car audio systems, and other audio systems that operate from a low voltage power supply. Because it is of low power and low voltage, it is also often used in applications where power dissipation is an issue.

Working Principle

The LV49152V-TLM-E uses a two-stage circuit design, with an input stage and a push-pull output stage. The amplifier is driven by two external power sources, one for each channel. The input section of the amplifier consists of two operational amplifiers, one for each channel. The output stage consists of two N-channel MOSFETs, one for each channel, which boost the audio signal and amplify it. The output stage of the LV49152V-TLM-E is capable of supplying up to 1.8 A of peak output current, allowing it to achieve a maximum output power of 8.3 W into a 4Ω speaker.

The LV49152V-TLM-E also features a ‘soft clip’ circuit, which helps to reduce distortion and improve signal-to-noise (SNR) ratio when driving low impedance loads. This circuit senses the output voltage of the amplifier and applies ‘soft’ clipping when the output approaches the power supply voltage, preventing the signal from becoming clipped or distorted.

The LV49152V-TLM-E is also equipped with heat-dissipation protection. This ensures that the device stays cool and does not overheat. The power supply voltage range of the LV49152V-TLM-E is 2.8 V to 5.5 V, and the output power can range from 0 W to 8.3 W, depending on the supply voltage and the output load. This range makes it suitable for many different audio applications.

Conclusion

In summary, the LV49152V-TLM-E is an efficient and versatile low voltage, low power dual-channel audio amplifier. Its small size, low power consumption, and high performance make it ideal for many audio applications in portable devices, home audio amplifiers, car audio systems, and other audio systems that operate from a low voltage power supply. Its heat-dissipation protection and ‘soft clip’ circuitry make it capable of delivering clean, distortion-free audio even under high output loads. The LV49152V-TLM-E is capable of supplying up to 8.3 W of power into a 4Ω speaker, making it ideal for many different audio applications.

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