LM4882MM/NOPB

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Audio amplifiers are an important component in music production. They are used to increase the power of an audio signal to levels needed for loudspeakers. The LM4882MM/NOPB is a monaural audio amplifier from Texas Instruments, which is capable of providing up to 1.25 watts of output power. This amplifier is ideal for applications such as portable radios, small amplifiers, and basic audio systems.

The LM4882MM/NOPB belongs to a family of audio amplifiers, known as the LM4882 series. This series includes a variety of integrated circuits, which can provide up to 2 watts of power. The LM4882MM/NOPB is the most powerful of the series, and its most notable feature is its ability to drive a 32 ohm speaker with a 1.25 watt output. The LM4882MM/NOPB has a flat frequency response between 20Hz and 20kHz, making it suitable for a wide range of audio signals.

The LM4882MM/NOPB is designed to be used with a power supply ranging from 2.5 to 6 volts. This makes it suitable for use with batteries, wall plugs, and DC-DC converters. The power supply must be able to provide at least 4.3 volts for the amplifier to operate. The LM4882MM/NOPB has an internally trimmed gain of 20dB and can be used with a voltage gain of either 20dB or 40dB. The LM4882MM/NOPB also has provisions for a power-on reset and a standby mode, which can reduce power consumption. The LM4882MM/NOPB has an excellent power supply rejection ratio of 85dB, making it suitable for use in environments with noisy power sources.

In terms of audio fidelity, the LM4882MM/NOPB has an impressive signal-to-noise ratio of 92dB and a total harmonic distortion of 0.02%. This makes it suitable for a wide range of applications, including portable radios, home audio systems, and even television sound systems. The LM4882MM/NOPB is also capable of driving an 8 ohm speaker at 1 watt of output power, making it suitable for low-power applications such as microphone pre-amps, headphone amplifiers, and even hobby projects.

As an audio amplifier, the LM4882MM/NOPB has an impressive list of features and performance metrics. Its ability to drive a 32 ohm speaker at 1.25 watts of output power, combined with its excellent audio fidelity, make it the perfect choice for a wide range of applications. Its low cost and small size also make it ideal for portable applications.

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