LM4670SD/NOPB

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The LM4670SD/NOPB is a versatile and high-performance power amplifier integrated circuit (IC) used for audio applications. It is a low power version of the LM4670 series of audio amplifier ICs, and it is designed to be used in high-power audio environments, such as commercial PA systems, home entertainment systems and professional audio systems.

The LM4670SD/NOPB is designed to deliver up to 500 watts of power while providing a low distortion level (0.004%). This power is delivered at a frequency range of 20 Hz to 20 kHz, with a THD rating of 0.01% at 1 kHz. This IC offers a dynamic range of 90 dB and a peak output voltage of +22 dBu.

The LM4670SD/NOPB is comprised of five sections: an input section, a buffer section, an output section, an audio regulation section and a power management section. The input section is a low-noise, low-distortion, voltage-gain stage. The buffer stage further amplifies the input signal, providing greater isolation and impedance matching for the output stage. The output section includes a high-current driver, which provides efficient transfer of the input signal to the output. This section also includes a voltage regulator, which maintains the power supply voltage to the IC. The audio regulation section includes a slew-rate limit, which prevents the IC from overloading during rapid voltage changes. The power management section includes an over-temperature protection circuit, a flexible clock generator and an energy-saving mode.

The LM4670SD/NOPB is a versatile IC that can be used for a variety of purposes. It is suitable for use in PA systems, home theatre systems, studio and performance audio systems, and car audio systems. In PA systems and home theatre systems, the IC can be used to drive multiple speakers simultaneously, providing clear and powerful sound. In car audio systems, it can be used to drive multiple subwoofers, providing strong bass notes. The IC also offers low noise and low distortion, making it ideal for studio applications.

In summary, the LM4670SD/NOPB is a high-performance power amplifier IC designed for audio applications. It is capable of delivering up to 500 watts of power with a low distortion level of 0.004%, and it offers a dynamic range of 90 dB and a peak output voltage of +22 dBu. The IC is comprised of five sections and is suitable for use in PA systems, home theatre systems, studio and performance audio systems, and car audio systems.

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