LM4935RLX/NOPB

Audio Amplifiers

Audio amplifiers are used to increase the amplitude of a signal from a low level excitation source such as a microphone to produce a louder sound. Audio amplifiers come in all shapes and sizes, from basic consumer level amplifiers to sophisticated audio systems for professional sound engineering. The LM4935RLX/NOPB audio amplifier falls into the consumer category, designed for use in applications such as car audio systems, home stereo systems and portable audio devices.

Application Field and Working Principle

The LM4935RLX/NOPB is a professional audio amplifier targeted towards consumer applications. It boasts a wide range of features, including a selectable gain range of 8 to 24 dB, two-stage gain control and a high-power output stage, all of which contribute to excellent performance in consumer audio systems. The LM4935RLX/NOPB is designed to drive both speakers and headphones, with a total output power of up to 12 W. This makes it suitable for driving both small and medium-sized speaker systems, as well as high-end headphones.

The LM4935RLX/NOPB operates on a single-ended single supply, with a supply voltage of 12 V to 40 V. It has a dynamic range of 110 dB and boasts a total harmonic distortion (THD) of 0.04%. This combination of features makes the LM4935RLX/NOPB very well suited to audio systems, where low noise and distortion are essential.

The LM4935RLX/NOPB uses a two-stage voltage amplification circuit, with an external gain control stage and an internal gain control stage. The external gain control stage is designed for easy user control, with a Gain of 8 to 24 dB. The internal gain control stage is designed for precise digital control of the amplifier gain, allowing it to be adjusted to the desired level. The LM4935RLX/NOPB also features a high-power output stage, capable of delivering up to 12 W of output power, which makes it suitable for driving both speakers and headphones.

Finally, the LM4935RLX/NOPB features a low power shutdown mode, allowing the user to switch off the amplifier when not in use. This feature helps to conserve battery power in portable audio systems and allows the user to switch between headphone and speaker outputs with a single switch.

Conclusion

The LM4935RLX/NOPB is a professional-quality audio amplifier designed for use in consumer audio systems. It boasts a wide range of features, including a selectable gain range of 8 to 24 dB, two-stage gain control and a high-power output stage. The LM4935RLX/NOPB is designed to drive both speakers and headphones, with a total output power of up to 12 W, making it suitable for both small and medium-sized speaker systems, as well as high-end headphones. The LM4935RLX/NOPB also features a low power shutdown mode, allowing the user to switch off the amplifier when not in use.