LM4864MX/NOPB Integrated Circuits (ICs)

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Audio amplifiers provide increased signal levels and are grouped into three types of operation: class A, class B and class AB, each with its own set of characteristics and compromises. The LM4864MX/NOPB is a versatile, low power audio amplifier system solution which combines a stereo LM386MX low voltage audio power amplifier with a ground-referenced signal mode headphone amplifier into a single package. It is designed to offer customers cost savings and improved performance over discrete solutions.

The LM4864MX/NOPB provides high output drive current and power for a variety of audio applications, such as TV sets, portable DVD players, radios, and compact audio devices. It can operate from 5V to 15V supplies and has a low quiescent (standby) current drain of only 0.45mA. It offers a stereo headphone output with a maximum output power of 16mW per channel into 32Ω loads, as well as a maximum output power of 33mW per channel into 16Ω loads. The LM4864MX/NOPB is designed to be capable of driving a wide range of loudspeaker power levels.

The LM4864MX/NOPB audio amplifiers feature distortion cancellers which increase the output linearity, thereby reducing noise and distortion during heavy loads and transitions. Moreover, the amplifier incorporates a standby mode, resulting in a reduced current of less than 5% of the full power supply current during standby. The LM4864MX/NOPB also includes a four-transistor headphone amplifier stage with ground-referenced signal sources. This allows the amplifier to deliver high output drive current, with no need for an external voltage boost supply. In addition, the signal level boost provided by the four-transistor stage helps to reduce the distortion levels.

The LM4864MX/NOPB audio amplifier system enables fast and efficient design processes. The amplifier can be used in many applications including automotive audio, home entertainment, and wireless audio systems. Its low power consumption and low quiescent current drain make it an ideal solution for battery operated applications.

Overall, the LM4864MX/NOPB is a robust and reliable audio amplifier solution. It offers a high output drive capability with low power consumption, as well as distortion cancellation, ground-referenced signal sources, and standby mode. These features make it ideal for a wide range of audio applications.

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