LMV1032URX-25/NOPB

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The LMV1032URX-25/NOPB is a high-performance, low-power audio amplifier specifically designed for consumer portable applications like phones, media players and notebook PCs. This amplifier is very versatile and can be used for a variety of applications ranging from low power headphone drivers to consumer speaker systems. The LMV1032URX-25/NOPB amplifier does not require any external components to operate, making it extremely cost effective for consumer applications. It is capable of delivering an output power of 2.5 watts into a 4 ohm load and up to 1 watt into 16 ohms.

Application Field

The LMV1032URX-25/NOPB is well suited for a wide variety of consumer applications. It is used in many low-power headphone drivers, pocket speakers, portable media players, notebook PCs and mobile phones. This amplifier offers excellent noise performance, high-efficiency and robustness, making it the ideal choice for consumer applications.

In addition, the LMV1032URX-25/NOPB is well suited for automotive applications, where it can be used to drive up to four speakers in a two-channel or four-channel system. It can also be used in professional audio systems such as mixing consoles and powered speakers. It is capable of delivering an impressive power output with extremely low distortion, making it the perfect choice for professional applications.

Working Principle

The LMV1032URX-25/NOPB amplifier is based on the popular multi-stage amplifier architecture which consists of a differential input stage, a voltage gain stage, a class AB output stage, and a power supply circuit. The differential input stage is made up of two single-ended input stages, which are connected by differential feedback. This configuration provides excellent noise rejection and high CMRR (common-mode rejection ratio). The voltage gain stage consists of a differential pair of transistors, which is connected to the input signal and provides gain up to 23dB depending on the load impedance. The class AB output stage is composed of four transistors and is connected to a power supply rail to provide the necessary power for the amplifier. It is also connected to the output signal and its output power is determined by the bias current set by the on-board potentiometer. The output power is capable of delivering up to 2.5 watts into a 4 ohm load.

The amplifier’s power supply circuit takes care of the power supply needs for the entire amplifier circuit. It is composed of a low-noise regulator, which is connected to a power supply rail, and an output voltage sensing circuitry. The voltage sensing circuit helps to maintain the output voltage at a constant level by regulating the voltage drop across the regulator. This ensures that the amplifier is capable of delivering its maximum output power regardless of the load impedance.

Conclusion

The LMV1032URX-25/NOPB amplifier is an ideal choice for low-power audio applications and can be used in a variety of applications, ranging from automotive and consumer applications to professional applications. It is capable of delivering an output power of up to 2.5 watts into a 4-ohm load and up to 1 watt into 16 ohms without requiring any external components. Moreover, its multi-stage amplifier architecture, combined with its efficient power supply circuit and Voltage Sensing Circuit, ensure that the amplifier is able to provide a high-quality sound without any distortion at all levels of the output power. Therefore, the LMV1032URX-25/NOPB is an ideal choice for audio applications.

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