LM4938MHX/NOPB

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The LM4938MHX/NOPB is a unique audio amplifier with versatile functions and features. It is intended for a variety of applications, including speaker drive and headphone amplifier stages, as well as handheld audio devices, equipment racks, computers, and automotive systems. This product utilizes a two-stage topology, incorporating both a class AB output stage and a class D input stage, enabling high performance and efficient power consumption.

This device has two separate differential inputs that can accept split-signal or single-ended input signals. The first stage inputs are then amplified by a class AB differential pair, followed by a high-current class D stage that serves as a power amplifier for driving external speakers and headphones. The third stage then serves as an output buffer for driving the external loudspeaker.

In terms of features, the LM4938MHX/NOPB comes with high-performance audio features such as active crossover, sound processing and compressor control. It includes patented technologies such as SMART Distortion Control that accurately controls even-ordered harmonic distortion while preserving desirable sound character, as well as Flexible Analog Equalizer (FAE) technology that enables accurate frequency response and equalization of multiple audio signals. Another unique feature is the Thermal Shutdown circuitry, which automatically shuts down the device in the event of excessive heat.

The LM4938MHX/NOPB is a state-of-the art audio amplifier that provides excellent performance, flexibility, and efficiency for a variety of applications. The easy-to-use layout and a wide range of features make it ideal for complex audio systems. The excellent performance of the amplifier is complemented by its wide range of control functions and its ability to drive low-impedance and high-impedance load speakers.

In terms of performance, the device operates with a total harmonic distortion rating of 0.003%. It delivers a wide dynamic range and low noise thanks to the THD+N rate at -112dB. Furthermore, it includes an impressive frequency response rate of 20Hz to 20kHz, plus a signal-to-noise ratio at -120dB. The LM4938MHX/NOPB supports both stereo and mono audio configurations, with an ability to switch between the two modes.

The LM4938MHX/NOPB is an efficient audio amplifier that provides superior sound quality and performance. It utilizes an advanced manufacturing process and intelligent circuitry to deliver an impressive level of performance, reliability, and power efficiency. With advanced features and configurable capabilities, this device can be used to create audio systems with high fidelity, low power consumption, and total system control.

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