LV4904V-TLM-E

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The LV4904V-TLM-E is a linear dual audio amplifier IC (integrated circuit) designed by ON Semiconductor. It offers a low-noise distortion-free audio amplification solution suitable for applications such as home theater systems, multimedia, and car audio systems.

The LV4904V-TLM-E is designed to provide high fidelity, low total harmonic distortion (THD), and low noise audio performance. It can deliver 2 x18W RMS output power with a THD smaller than 0.7%. It has a power supply voltage range of 10V to 26V and a wide operating temperature range of -40°C to 125°C. The IC includes a thermal protection function, a mute function, and an under-voltage lockout function for added security.

The LV4904V-TLM-E features a built-in high voltage power supply, so there is no need for an external power supply. The IC is designed to be used in stereo audio amplifiers, and it is capable of driving 2, 8 ohm or 4 ohm loudspeakers. The IC has two independent amplifier channels, and each has separate inputs, allowing users to switch between mono or stereo mode.

When it comes to the LV4904V-TLM-E’s working principle, it uses a PWM (Pulse-Width Modulation) amplifier topology. The IC contains a preamplifier stage, a Class-D power amplifier stage, and a post-processor stage. The preamplifier stage boosts the input signal from the audio source and then passes it to the Class-D amplifier. The Class-D amplifier then amplifies the signal and passes it to the post-processor stage, where several correction algorithms are applied to obtain the desired audio output.

In terms of applications, the LV4904V-TLM-E is suitable for use in home audio systems, car audio systems, and multimedia audio systems. It can also be used in portable audio devices such as mobile phones, iPods, and MP3 players. The IC is a good choice for audio amplification applications because of its low distortion, low noise, and high fidelity audio performance.

In conclusion, the LV4904V-TLM-E is an excellent linear dual audio amplifier IC designed by ON Semiconductor. It can deliver up to 2 x 18W RMS output power, and it features low distortion, low noise, and high fidelity audio performance. It can be used in a variety of audio amplification applications, including home audio systems, car audio systems, and multimedia audio systems.

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